mirror of
https://github.com/Fishwaldo/build.git
synced 2025-07-12 16:08:49 +00:00
1736 lines
54 KiB
Diff
1736 lines
54 KiB
Diff
diff --git a/Documentation/devicetree/bindings/rtc/rtc.yaml b/Documentation/devicetree/bindings/rtc/rtc.yaml
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index 8acd2de3de3ad..d30dc045aac64 100644
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--- a/Documentation/devicetree/bindings/rtc/rtc.yaml
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+++ b/Documentation/devicetree/bindings/rtc/rtc.yaml
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@@ -63,6 +63,11 @@ properties:
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description:
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Enables wake up of host system on alarm.
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+ reset-source:
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+ $ref: /schemas/types.yaml#/definitions/flag
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+ description:
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+ The RTC is able to reset the machine.
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+
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additionalProperties: true
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...
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diff --git a/Makefile b/Makefile
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index bb431fd473d2c..2b3f0d06b0054 100644
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--- a/Makefile
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+++ b/Makefile
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@@ -1,7 +1,7 @@
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# SPDX-License-Identifier: GPL-2.0
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VERSION = 5
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PATCHLEVEL = 10
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-SUBLEVEL = 5
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+SUBLEVEL = 6
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EXTRAVERSION =
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NAME = Kleptomaniac Octopus
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diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
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index 30c6b9edddb50..0f7749e9424d4 100644
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--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
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+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
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@@ -2278,8 +2278,7 @@ void amdgpu_dm_update_connector_after_detect(
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drm_connector_update_edid_property(connector,
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aconnector->edid);
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- aconnector->num_modes = drm_add_edid_modes(connector, aconnector->edid);
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- drm_connector_list_update(connector);
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+ drm_add_edid_modes(connector, aconnector->edid);
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if (aconnector->dc_link->aux_mode)
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drm_dp_cec_set_edid(&aconnector->dm_dp_aux.aux,
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diff --git a/drivers/gpu/drm/i915/display/intel_dpll_mgr.c b/drivers/gpu/drm/i915/display/intel_dpll_mgr.c
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index e08684e34078a..91b37b76618d2 100644
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--- a/drivers/gpu/drm/i915/display/intel_dpll_mgr.c
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+++ b/drivers/gpu/drm/i915/display/intel_dpll_mgr.c
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@@ -2622,11 +2622,22 @@ static bool cnl_ddi_hdmi_pll_dividers(struct intel_crtc_state *crtc_state)
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return true;
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}
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+/*
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+ * Display WA #22010492432: tgl
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+ * Program half of the nominal DCO divider fraction value.
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+ */
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+static bool
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+tgl_combo_pll_div_frac_wa_needed(struct drm_i915_private *i915)
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+{
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+ return IS_TIGERLAKE(i915) && i915->dpll.ref_clks.nssc == 38400;
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+}
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+
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static int __cnl_ddi_wrpll_get_freq(struct drm_i915_private *dev_priv,
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const struct intel_shared_dpll *pll,
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int ref_clock)
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{
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const struct intel_dpll_hw_state *pll_state = &pll->state.hw_state;
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+ u32 dco_fraction;
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u32 p0, p1, p2, dco_freq;
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p0 = pll_state->cfgcr1 & DPLL_CFGCR1_PDIV_MASK;
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@@ -2669,8 +2680,13 @@ static int __cnl_ddi_wrpll_get_freq(struct drm_i915_private *dev_priv,
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dco_freq = (pll_state->cfgcr0 & DPLL_CFGCR0_DCO_INTEGER_MASK) *
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ref_clock;
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- dco_freq += (((pll_state->cfgcr0 & DPLL_CFGCR0_DCO_FRACTION_MASK) >>
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- DPLL_CFGCR0_DCO_FRACTION_SHIFT) * ref_clock) / 0x8000;
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+ dco_fraction = (pll_state->cfgcr0 & DPLL_CFGCR0_DCO_FRACTION_MASK) >>
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+ DPLL_CFGCR0_DCO_FRACTION_SHIFT;
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+
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+ if (tgl_combo_pll_div_frac_wa_needed(dev_priv))
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+ dco_fraction *= 2;
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+
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+ dco_freq += (dco_fraction * ref_clock) / 0x8000;
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if (drm_WARN_ON(&dev_priv->drm, p0 == 0 || p1 == 0 || p2 == 0))
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return 0;
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@@ -2948,16 +2964,6 @@ static const struct skl_wrpll_params tgl_tbt_pll_24MHz_values = {
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/* the following params are unused */
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};
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-/*
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- * Display WA #22010492432: tgl
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- * Divide the nominal .dco_fraction value by 2.
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- */
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-static const struct skl_wrpll_params tgl_tbt_pll_38_4MHz_values = {
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- .dco_integer = 0x54, .dco_fraction = 0x1800,
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- /* the following params are unused */
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- .pdiv = 0, .kdiv = 0, .qdiv_mode = 0, .qdiv_ratio = 0,
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-};
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-
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static bool icl_calc_dp_combo_pll(struct intel_crtc_state *crtc_state,
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struct skl_wrpll_params *pll_params)
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{
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@@ -2991,14 +2997,12 @@ static bool icl_calc_tbt_pll(struct intel_crtc_state *crtc_state,
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MISSING_CASE(dev_priv->dpll.ref_clks.nssc);
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fallthrough;
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case 19200:
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+ case 38400:
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*pll_params = tgl_tbt_pll_19_2MHz_values;
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break;
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case 24000:
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*pll_params = tgl_tbt_pll_24MHz_values;
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break;
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- case 38400:
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- *pll_params = tgl_tbt_pll_38_4MHz_values;
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- break;
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}
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} else {
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switch (dev_priv->dpll.ref_clks.nssc) {
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@@ -3065,9 +3069,14 @@ static void icl_calc_dpll_state(struct drm_i915_private *i915,
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const struct skl_wrpll_params *pll_params,
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struct intel_dpll_hw_state *pll_state)
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{
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+ u32 dco_fraction = pll_params->dco_fraction;
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+
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memset(pll_state, 0, sizeof(*pll_state));
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- pll_state->cfgcr0 = DPLL_CFGCR0_DCO_FRACTION(pll_params->dco_fraction) |
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+ if (tgl_combo_pll_div_frac_wa_needed(i915))
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+ dco_fraction = DIV_ROUND_CLOSEST(dco_fraction, 2);
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+
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+ pll_state->cfgcr0 = DPLL_CFGCR0_DCO_FRACTION(dco_fraction) |
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pll_params->dco_integer;
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pll_state->cfgcr1 = DPLL_CFGCR1_QDIV_RATIO(pll_params->qdiv_ratio) |
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diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c
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index 4a041511b70ec..76b9c436edcd2 100644
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--- a/drivers/infiniband/core/device.c
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+++ b/drivers/infiniband/core/device.c
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@@ -1177,25 +1177,6 @@ out:
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return ret;
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}
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-static void setup_dma_device(struct ib_device *device,
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- struct device *dma_device)
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-{
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- /*
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- * If the caller does not provide a DMA capable device then the IB
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- * device will be used. In this case the caller should fully setup the
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- * ibdev for DMA. This usually means using dma_virt_ops.
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- */
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-#ifdef CONFIG_DMA_VIRT_OPS
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- if (!dma_device) {
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- device->dev.dma_ops = &dma_virt_ops;
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- dma_device = &device->dev;
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- }
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-#endif
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- WARN_ON(!dma_device);
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- device->dma_device = dma_device;
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- WARN_ON(!device->dma_device->dma_parms);
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-}
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-
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/*
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* setup_device() allocates memory and sets up data that requires calling the
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* device ops, this is the only reason these actions are not done during
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@@ -1341,7 +1322,14 @@ int ib_register_device(struct ib_device *device, const char *name,
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if (ret)
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return ret;
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- setup_dma_device(device, dma_device);
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+ /*
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+ * If the caller does not provide a DMA capable device then the IB core
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+ * will set up ib_sge and scatterlist structures that stash the kernel
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+ * virtual address into the address field.
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+ */
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+ WARN_ON(dma_device && !dma_device->dma_parms);
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+ device->dma_device = dma_device;
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+
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ret = setup_device(device);
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if (ret)
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return ret;
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@@ -2676,6 +2664,21 @@ void ib_set_device_ops(struct ib_device *dev, const struct ib_device_ops *ops)
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}
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EXPORT_SYMBOL(ib_set_device_ops);
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+#ifdef CONFIG_INFINIBAND_VIRT_DMA
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+int ib_dma_virt_map_sg(struct ib_device *dev, struct scatterlist *sg, int nents)
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+{
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+ struct scatterlist *s;
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+ int i;
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+
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+ for_each_sg(sg, s, nents, i) {
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+ sg_dma_address(s) = (uintptr_t)sg_virt(s);
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+ sg_dma_len(s) = s->length;
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+ }
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+ return nents;
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+}
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+EXPORT_SYMBOL(ib_dma_virt_map_sg);
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+#endif /* CONFIG_INFINIBAND_VIRT_DMA */
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+
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static const struct rdma_nl_cbs ibnl_ls_cb_table[RDMA_NL_LS_NUM_OPS] = {
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[RDMA_NL_LS_OP_RESOLVE] = {
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.doit = ib_nl_handle_resolve_resp,
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diff --git a/drivers/infiniband/core/rw.c b/drivers/infiniband/core/rw.c
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index 13f43ab7220b0..a96030b784eb2 100644
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--- a/drivers/infiniband/core/rw.c
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+++ b/drivers/infiniband/core/rw.c
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@@ -285,8 +285,11 @@ static void rdma_rw_unmap_sg(struct ib_device *dev, struct scatterlist *sg,
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static int rdma_rw_map_sg(struct ib_device *dev, struct scatterlist *sg,
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u32 sg_cnt, enum dma_data_direction dir)
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{
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- if (is_pci_p2pdma_page(sg_page(sg)))
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+ if (is_pci_p2pdma_page(sg_page(sg))) {
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+ if (WARN_ON_ONCE(ib_uses_virt_dma(dev)))
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+ return 0;
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return pci_p2pdma_map_sg(dev->dma_device, sg, sg_cnt, dir);
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+ }
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return ib_dma_map_sg(dev, sg, sg_cnt, dir);
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}
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diff --git a/drivers/infiniband/sw/rdmavt/Kconfig b/drivers/infiniband/sw/rdmavt/Kconfig
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index c8e268082952b..0df48b3a6b56c 100644
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--- a/drivers/infiniband/sw/rdmavt/Kconfig
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+++ b/drivers/infiniband/sw/rdmavt/Kconfig
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@@ -4,6 +4,5 @@ config INFINIBAND_RDMAVT
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depends on INFINIBAND_VIRT_DMA
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depends on X86_64
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depends on PCI
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- select DMA_VIRT_OPS
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help
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This is a common software verbs provider for RDMA networks.
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diff --git a/drivers/infiniband/sw/rdmavt/mr.c b/drivers/infiniband/sw/rdmavt/mr.c
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index 8490fdb9c91e5..90fc234f489ac 100644
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--- a/drivers/infiniband/sw/rdmavt/mr.c
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+++ b/drivers/infiniband/sw/rdmavt/mr.c
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@@ -324,8 +324,6 @@ static void __rvt_free_mr(struct rvt_mr *mr)
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* @acc: access flags
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*
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* Return: the memory region on success, otherwise returns an errno.
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- * Note that all DMA addresses should be created via the functions in
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- * struct dma_virt_ops.
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*/
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struct ib_mr *rvt_get_dma_mr(struct ib_pd *pd, int acc)
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{
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@@ -766,7 +764,7 @@ int rvt_lkey_ok(struct rvt_lkey_table *rkt, struct rvt_pd *pd,
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|
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/*
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* We use LKEY == zero for kernel virtual addresses
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- * (see rvt_get_dma_mr() and dma_virt_ops).
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+ * (see rvt_get_dma_mr()).
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*/
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if (sge->lkey == 0) {
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struct rvt_dev_info *dev = ib_to_rvt(pd->ibpd.device);
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@@ -877,7 +875,7 @@ int rvt_rkey_ok(struct rvt_qp *qp, struct rvt_sge *sge,
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|
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/*
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* We use RKEY == zero for kernel virtual addresses
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- * (see rvt_get_dma_mr() and dma_virt_ops).
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+ * (see rvt_get_dma_mr()).
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*/
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rcu_read_lock();
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if (rkey == 0) {
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diff --git a/drivers/infiniband/sw/rdmavt/vt.c b/drivers/infiniband/sw/rdmavt/vt.c
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index 670a9623b46e1..d1bbe66610cfe 100644
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--- a/drivers/infiniband/sw/rdmavt/vt.c
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+++ b/drivers/infiniband/sw/rdmavt/vt.c
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@@ -524,7 +524,6 @@ static noinline int check_support(struct rvt_dev_info *rdi, int verb)
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int rvt_register_device(struct rvt_dev_info *rdi)
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{
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int ret = 0, i;
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- u64 dma_mask;
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|
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if (!rdi)
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return -EINVAL;
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@@ -579,13 +578,6 @@ int rvt_register_device(struct rvt_dev_info *rdi)
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/* Completion queues */
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spin_lock_init(&rdi->n_cqs_lock);
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|
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- /* DMA Operations */
|
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- rdi->ibdev.dev.dma_parms = rdi->ibdev.dev.parent->dma_parms;
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- dma_mask = IS_ENABLED(CONFIG_64BIT) ? DMA_BIT_MASK(64) : DMA_BIT_MASK(32);
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- ret = dma_coerce_mask_and_coherent(&rdi->ibdev.dev, dma_mask);
|
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- if (ret)
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|
- goto bail_wss;
|
|
-
|
|
/* Protection Domain */
|
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spin_lock_init(&rdi->n_pds_lock);
|
|
rdi->n_pds_allocated = 0;
|
|
diff --git a/drivers/infiniband/sw/rxe/Kconfig b/drivers/infiniband/sw/rxe/Kconfig
|
|
index 8810bfa680495..4521490667925 100644
|
|
--- a/drivers/infiniband/sw/rxe/Kconfig
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|
+++ b/drivers/infiniband/sw/rxe/Kconfig
|
|
@@ -5,7 +5,6 @@ config RDMA_RXE
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|
depends on INFINIBAND_VIRT_DMA
|
|
select NET_UDP_TUNNEL
|
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select CRYPTO_CRC32
|
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- select DMA_VIRT_OPS
|
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help
|
|
This driver implements the InfiniBand RDMA transport over
|
|
the Linux network stack. It enables a system with a
|
|
diff --git a/drivers/infiniband/sw/rxe/rxe_net.c b/drivers/infiniband/sw/rxe/rxe_net.c
|
|
index 34bef7d8e6b41..943914c2a50c7 100644
|
|
--- a/drivers/infiniband/sw/rxe/rxe_net.c
|
|
+++ b/drivers/infiniband/sw/rxe/rxe_net.c
|
|
@@ -20,18 +20,6 @@
|
|
|
|
static struct rxe_recv_sockets recv_sockets;
|
|
|
|
-struct device *rxe_dma_device(struct rxe_dev *rxe)
|
|
-{
|
|
- struct net_device *ndev;
|
|
-
|
|
- ndev = rxe->ndev;
|
|
-
|
|
- if (is_vlan_dev(ndev))
|
|
- ndev = vlan_dev_real_dev(ndev);
|
|
-
|
|
- return ndev->dev.parent;
|
|
-}
|
|
-
|
|
int rxe_mcast_add(struct rxe_dev *rxe, union ib_gid *mgid)
|
|
{
|
|
int err;
|
|
diff --git a/drivers/infiniband/sw/rxe/rxe_verbs.c b/drivers/infiniband/sw/rxe/rxe_verbs.c
|
|
index f9c832e82552f..512868c230238 100644
|
|
--- a/drivers/infiniband/sw/rxe/rxe_verbs.c
|
|
+++ b/drivers/infiniband/sw/rxe/rxe_verbs.c
|
|
@@ -1118,23 +1118,15 @@ int rxe_register_device(struct rxe_dev *rxe, const char *ibdev_name)
|
|
int err;
|
|
struct ib_device *dev = &rxe->ib_dev;
|
|
struct crypto_shash *tfm;
|
|
- u64 dma_mask;
|
|
|
|
strlcpy(dev->node_desc, "rxe", sizeof(dev->node_desc));
|
|
|
|
dev->node_type = RDMA_NODE_IB_CA;
|
|
dev->phys_port_cnt = 1;
|
|
dev->num_comp_vectors = num_possible_cpus();
|
|
- dev->dev.parent = rxe_dma_device(rxe);
|
|
dev->local_dma_lkey = 0;
|
|
addrconf_addr_eui48((unsigned char *)&dev->node_guid,
|
|
rxe->ndev->dev_addr);
|
|
- dev->dev.dma_parms = &rxe->dma_parms;
|
|
- dma_set_max_seg_size(&dev->dev, UINT_MAX);
|
|
- dma_mask = IS_ENABLED(CONFIG_64BIT) ? DMA_BIT_MASK(64) : DMA_BIT_MASK(32);
|
|
- err = dma_coerce_mask_and_coherent(&dev->dev, dma_mask);
|
|
- if (err)
|
|
- return err;
|
|
|
|
dev->uverbs_cmd_mask = BIT_ULL(IB_USER_VERBS_CMD_GET_CONTEXT)
|
|
| BIT_ULL(IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL)
|
|
diff --git a/drivers/infiniband/sw/rxe/rxe_verbs.h b/drivers/infiniband/sw/rxe/rxe_verbs.h
|
|
index 3414b341b7091..4bf5d85a1ab3c 100644
|
|
--- a/drivers/infiniband/sw/rxe/rxe_verbs.h
|
|
+++ b/drivers/infiniband/sw/rxe/rxe_verbs.h
|
|
@@ -352,7 +352,6 @@ struct rxe_port {
|
|
struct rxe_dev {
|
|
struct ib_device ib_dev;
|
|
struct ib_device_attr attr;
|
|
- struct device_dma_parameters dma_parms;
|
|
int max_ucontext;
|
|
int max_inline_data;
|
|
struct mutex usdev_lock;
|
|
diff --git a/drivers/infiniband/sw/siw/Kconfig b/drivers/infiniband/sw/siw/Kconfig
|
|
index 3450ba5081df5..1b5105cbabaee 100644
|
|
--- a/drivers/infiniband/sw/siw/Kconfig
|
|
+++ b/drivers/infiniband/sw/siw/Kconfig
|
|
@@ -2,7 +2,6 @@ config RDMA_SIW
|
|
tristate "Software RDMA over TCP/IP (iWARP) driver"
|
|
depends on INET && INFINIBAND && LIBCRC32C
|
|
depends on INFINIBAND_VIRT_DMA
|
|
- select DMA_VIRT_OPS
|
|
help
|
|
This driver implements the iWARP RDMA transport over
|
|
the Linux TCP/IP network stack. It enables a system with a
|
|
diff --git a/drivers/infiniband/sw/siw/siw.h b/drivers/infiniband/sw/siw/siw.h
|
|
index e9753831ac3f3..adda789962196 100644
|
|
--- a/drivers/infiniband/sw/siw/siw.h
|
|
+++ b/drivers/infiniband/sw/siw/siw.h
|
|
@@ -69,7 +69,6 @@ struct siw_pd {
|
|
|
|
struct siw_device {
|
|
struct ib_device base_dev;
|
|
- struct device_dma_parameters dma_parms;
|
|
struct net_device *netdev;
|
|
struct siw_dev_cap attrs;
|
|
|
|
diff --git a/drivers/infiniband/sw/siw/siw_main.c b/drivers/infiniband/sw/siw/siw_main.c
|
|
index 181e06c1c43d7..9d152e198a59b 100644
|
|
--- a/drivers/infiniband/sw/siw/siw_main.c
|
|
+++ b/drivers/infiniband/sw/siw/siw_main.c
|
|
@@ -305,25 +305,8 @@ static struct siw_device *siw_device_create(struct net_device *netdev)
|
|
{
|
|
struct siw_device *sdev = NULL;
|
|
struct ib_device *base_dev;
|
|
- struct device *parent = netdev->dev.parent;
|
|
- u64 dma_mask;
|
|
int rv;
|
|
|
|
- if (!parent) {
|
|
- /*
|
|
- * The loopback device has no parent device,
|
|
- * so it appears as a top-level device. To support
|
|
- * loopback device connectivity, take this device
|
|
- * as the parent device. Skip all other devices
|
|
- * w/o parent device.
|
|
- */
|
|
- if (netdev->type != ARPHRD_LOOPBACK) {
|
|
- pr_warn("siw: device %s error: no parent device\n",
|
|
- netdev->name);
|
|
- return NULL;
|
|
- }
|
|
- parent = &netdev->dev;
|
|
- }
|
|
sdev = ib_alloc_device(siw_device, base_dev);
|
|
if (!sdev)
|
|
return NULL;
|
|
@@ -382,13 +365,6 @@ static struct siw_device *siw_device_create(struct net_device *netdev)
|
|
* per physical port.
|
|
*/
|
|
base_dev->phys_port_cnt = 1;
|
|
- base_dev->dev.parent = parent;
|
|
- base_dev->dev.dma_parms = &sdev->dma_parms;
|
|
- dma_set_max_seg_size(&base_dev->dev, UINT_MAX);
|
|
- dma_mask = IS_ENABLED(CONFIG_64BIT) ? DMA_BIT_MASK(64) : DMA_BIT_MASK(32);
|
|
- if (dma_coerce_mask_and_coherent(&base_dev->dev, dma_mask))
|
|
- goto error;
|
|
-
|
|
base_dev->num_comp_vectors = num_possible_cpus();
|
|
|
|
xa_init_flags(&sdev->qp_xa, XA_FLAGS_ALLOC1);
|
|
@@ -430,7 +406,7 @@ static struct siw_device *siw_device_create(struct net_device *netdev)
|
|
atomic_set(&sdev->num_mr, 0);
|
|
atomic_set(&sdev->num_pd, 0);
|
|
|
|
- sdev->numa_node = dev_to_node(parent);
|
|
+ sdev->numa_node = dev_to_node(&netdev->dev);
|
|
spin_lock_init(&sdev->lock);
|
|
|
|
return sdev;
|
|
diff --git a/drivers/mtd/nand/spi/core.c b/drivers/mtd/nand/spi/core.c
|
|
index 7900571fc85b3..c352217946455 100644
|
|
--- a/drivers/mtd/nand/spi/core.c
|
|
+++ b/drivers/mtd/nand/spi/core.c
|
|
@@ -318,10 +318,6 @@ static int spinand_write_to_cache_op(struct spinand_device *spinand,
|
|
buf += ret;
|
|
}
|
|
|
|
- if (req->ooblen)
|
|
- memcpy(req->oobbuf.in, spinand->oobbuf + req->ooboffs,
|
|
- req->ooblen);
|
|
-
|
|
return 0;
|
|
}
|
|
|
|
diff --git a/drivers/net/wireless/marvell/mwifiex/join.c b/drivers/net/wireless/marvell/mwifiex/join.c
|
|
index 5934f71475477..173ccf79cbfcc 100644
|
|
--- a/drivers/net/wireless/marvell/mwifiex/join.c
|
|
+++ b/drivers/net/wireless/marvell/mwifiex/join.c
|
|
@@ -877,6 +877,8 @@ mwifiex_cmd_802_11_ad_hoc_start(struct mwifiex_private *priv,
|
|
|
|
memset(adhoc_start->ssid, 0, IEEE80211_MAX_SSID_LEN);
|
|
|
|
+ if (req_ssid->ssid_len > IEEE80211_MAX_SSID_LEN)
|
|
+ req_ssid->ssid_len = IEEE80211_MAX_SSID_LEN;
|
|
memcpy(adhoc_start->ssid, req_ssid->ssid, req_ssid->ssid_len);
|
|
|
|
mwifiex_dbg(adapter, INFO, "info: ADHOC_S_CMD: SSID = %s\n",
|
|
diff --git a/drivers/nvme/target/rdma.c b/drivers/nvme/target/rdma.c
|
|
index ae6620489457d..5c1e7cb7fe0de 100644
|
|
--- a/drivers/nvme/target/rdma.c
|
|
+++ b/drivers/nvme/target/rdma.c
|
|
@@ -414,7 +414,8 @@ static int nvmet_rdma_alloc_rsp(struct nvmet_rdma_device *ndev,
|
|
if (ib_dma_mapping_error(ndev->device, r->send_sge.addr))
|
|
goto out_free_rsp;
|
|
|
|
- r->req.p2p_client = &ndev->device->dev;
|
|
+ if (!ib_uses_virt_dma(ndev->device))
|
|
+ r->req.p2p_client = &ndev->device->dev;
|
|
r->send_sge.length = sizeof(*r->req.cqe);
|
|
r->send_sge.lkey = ndev->pd->local_dma_lkey;
|
|
|
|
diff --git a/drivers/rtc/rtc-pcf2127.c b/drivers/rtc/rtc-pcf2127.c
|
|
index 4d9711d51f8f3..f0a6861ff3aef 100644
|
|
--- a/drivers/rtc/rtc-pcf2127.c
|
|
+++ b/drivers/rtc/rtc-pcf2127.c
|
|
@@ -331,6 +331,37 @@ static const struct watchdog_ops pcf2127_watchdog_ops = {
|
|
.set_timeout = pcf2127_wdt_set_timeout,
|
|
};
|
|
|
|
+static int pcf2127_watchdog_init(struct device *dev, struct pcf2127 *pcf2127)
|
|
+{
|
|
+ u32 wdd_timeout;
|
|
+ int ret;
|
|
+
|
|
+ if (!IS_ENABLED(CONFIG_WATCHDOG) ||
|
|
+ !device_property_read_bool(dev, "reset-source"))
|
|
+ return 0;
|
|
+
|
|
+ pcf2127->wdd.parent = dev;
|
|
+ pcf2127->wdd.info = &pcf2127_wdt_info;
|
|
+ pcf2127->wdd.ops = &pcf2127_watchdog_ops;
|
|
+ pcf2127->wdd.min_timeout = PCF2127_WD_VAL_MIN;
|
|
+ pcf2127->wdd.max_timeout = PCF2127_WD_VAL_MAX;
|
|
+ pcf2127->wdd.timeout = PCF2127_WD_VAL_DEFAULT;
|
|
+ pcf2127->wdd.min_hw_heartbeat_ms = 500;
|
|
+ pcf2127->wdd.status = WATCHDOG_NOWAYOUT_INIT_STATUS;
|
|
+
|
|
+ watchdog_set_drvdata(&pcf2127->wdd, pcf2127);
|
|
+
|
|
+ /* Test if watchdog timer is started by bootloader */
|
|
+ ret = regmap_read(pcf2127->regmap, PCF2127_REG_WD_VAL, &wdd_timeout);
|
|
+ if (ret)
|
|
+ return ret;
|
|
+
|
|
+ if (wdd_timeout)
|
|
+ set_bit(WDOG_HW_RUNNING, &pcf2127->wdd.status);
|
|
+
|
|
+ return devm_watchdog_register_device(dev, &pcf2127->wdd);
|
|
+}
|
|
+
|
|
/* Alarm */
|
|
static int pcf2127_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
|
|
{
|
|
@@ -532,7 +563,6 @@ static int pcf2127_probe(struct device *dev, struct regmap *regmap,
|
|
int alarm_irq, const char *name, bool has_nvmem)
|
|
{
|
|
struct pcf2127 *pcf2127;
|
|
- u32 wdd_timeout;
|
|
int ret = 0;
|
|
|
|
dev_dbg(dev, "%s\n", __func__);
|
|
@@ -571,17 +601,6 @@ static int pcf2127_probe(struct device *dev, struct regmap *regmap,
|
|
pcf2127->rtc->ops = &pcf2127_rtc_alrm_ops;
|
|
}
|
|
|
|
- pcf2127->wdd.parent = dev;
|
|
- pcf2127->wdd.info = &pcf2127_wdt_info;
|
|
- pcf2127->wdd.ops = &pcf2127_watchdog_ops;
|
|
- pcf2127->wdd.min_timeout = PCF2127_WD_VAL_MIN;
|
|
- pcf2127->wdd.max_timeout = PCF2127_WD_VAL_MAX;
|
|
- pcf2127->wdd.timeout = PCF2127_WD_VAL_DEFAULT;
|
|
- pcf2127->wdd.min_hw_heartbeat_ms = 500;
|
|
- pcf2127->wdd.status = WATCHDOG_NOWAYOUT_INIT_STATUS;
|
|
-
|
|
- watchdog_set_drvdata(&pcf2127->wdd, pcf2127);
|
|
-
|
|
if (has_nvmem) {
|
|
struct nvmem_config nvmem_cfg = {
|
|
.priv = pcf2127,
|
|
@@ -611,19 +630,7 @@ static int pcf2127_probe(struct device *dev, struct regmap *regmap,
|
|
return ret;
|
|
}
|
|
|
|
- /* Test if watchdog timer is started by bootloader */
|
|
- ret = regmap_read(pcf2127->regmap, PCF2127_REG_WD_VAL, &wdd_timeout);
|
|
- if (ret)
|
|
- return ret;
|
|
-
|
|
- if (wdd_timeout)
|
|
- set_bit(WDOG_HW_RUNNING, &pcf2127->wdd.status);
|
|
-
|
|
-#ifdef CONFIG_WATCHDOG
|
|
- ret = devm_watchdog_register_device(dev, &pcf2127->wdd);
|
|
- if (ret)
|
|
- return ret;
|
|
-#endif /* CONFIG_WATCHDOG */
|
|
+ pcf2127_watchdog_init(dev, pcf2127);
|
|
|
|
/*
|
|
* Disable battery low/switch-over timestamp and interrupts.
|
|
diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-mediatek.c
|
|
index 8df73bc2f8cb2..914a827a93ee8 100644
|
|
--- a/drivers/scsi/ufs/ufs-mediatek.c
|
|
+++ b/drivers/scsi/ufs/ufs-mediatek.c
|
|
@@ -743,7 +743,7 @@ static int ufs_mtk_link_startup_notify(struct ufs_hba *hba,
|
|
return ret;
|
|
}
|
|
|
|
-static void ufs_mtk_device_reset(struct ufs_hba *hba)
|
|
+static int ufs_mtk_device_reset(struct ufs_hba *hba)
|
|
{
|
|
struct arm_smccc_res res;
|
|
|
|
@@ -764,6 +764,8 @@ static void ufs_mtk_device_reset(struct ufs_hba *hba)
|
|
usleep_range(10000, 15000);
|
|
|
|
dev_info(hba->dev, "device reset done\n");
|
|
+
|
|
+ return 0;
|
|
}
|
|
|
|
static int ufs_mtk_link_set_hpm(struct ufs_hba *hba)
|
|
diff --git a/drivers/scsi/ufs/ufs-qcom.c b/drivers/scsi/ufs/ufs-qcom.c
|
|
index f9d6ef3565407..a244c8ae1b4eb 100644
|
|
--- a/drivers/scsi/ufs/ufs-qcom.c
|
|
+++ b/drivers/scsi/ufs/ufs-qcom.c
|
|
@@ -1421,13 +1421,13 @@ static void ufs_qcom_dump_dbg_regs(struct ufs_hba *hba)
|
|
*
|
|
* Toggles the (optional) reset line to reset the attached device.
|
|
*/
|
|
-static void ufs_qcom_device_reset(struct ufs_hba *hba)
|
|
+static int ufs_qcom_device_reset(struct ufs_hba *hba)
|
|
{
|
|
struct ufs_qcom_host *host = ufshcd_get_variant(hba);
|
|
|
|
/* reset gpio is optional */
|
|
if (!host->device_reset)
|
|
- return;
|
|
+ return -EOPNOTSUPP;
|
|
|
|
/*
|
|
* The UFS device shall detect reset pulses of 1us, sleep for 10us to
|
|
@@ -1438,6 +1438,8 @@ static void ufs_qcom_device_reset(struct ufs_hba *hba)
|
|
|
|
gpiod_set_value_cansleep(host->device_reset, 0);
|
|
usleep_range(10, 15);
|
|
+
|
|
+ return 0;
|
|
}
|
|
|
|
#if IS_ENABLED(CONFIG_DEVFREQ_GOV_SIMPLE_ONDEMAND)
|
|
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
|
|
index e0f00a42371c5..cd51553e522da 100644
|
|
--- a/drivers/scsi/ufs/ufshcd.h
|
|
+++ b/drivers/scsi/ufs/ufshcd.h
|
|
@@ -318,7 +318,7 @@ struct ufs_hba_variant_ops {
|
|
int (*resume)(struct ufs_hba *, enum ufs_pm_op);
|
|
void (*dbg_register_dump)(struct ufs_hba *hba);
|
|
int (*phy_initialization)(struct ufs_hba *);
|
|
- void (*device_reset)(struct ufs_hba *hba);
|
|
+ int (*device_reset)(struct ufs_hba *hba);
|
|
void (*config_scaling_param)(struct ufs_hba *hba,
|
|
struct devfreq_dev_profile *profile,
|
|
void *data);
|
|
@@ -1181,9 +1181,17 @@ static inline void ufshcd_vops_dbg_register_dump(struct ufs_hba *hba)
|
|
static inline void ufshcd_vops_device_reset(struct ufs_hba *hba)
|
|
{
|
|
if (hba->vops && hba->vops->device_reset) {
|
|
- hba->vops->device_reset(hba);
|
|
- ufshcd_set_ufs_dev_active(hba);
|
|
- ufshcd_update_reg_hist(&hba->ufs_stats.dev_reset, 0);
|
|
+ int err = hba->vops->device_reset(hba);
|
|
+
|
|
+ if (!err) {
|
|
+ ufshcd_set_ufs_dev_active(hba);
|
|
+ if (ufshcd_is_wb_allowed(hba)) {
|
|
+ hba->wb_enabled = false;
|
|
+ hba->wb_buf_flush_enabled = false;
|
|
+ }
|
|
+ }
|
|
+ if (err != -EOPNOTSUPP)
|
|
+ ufshcd_update_reg_hist(&hba->ufs_stats.dev_reset, err);
|
|
}
|
|
}
|
|
|
|
diff --git a/fs/exec.c b/fs/exec.c
|
|
index 547a2390baf54..ca89e0e3ef10f 100644
|
|
--- a/fs/exec.c
|
|
+++ b/fs/exec.c
|
|
@@ -965,8 +965,8 @@ EXPORT_SYMBOL(read_code);
|
|
|
|
/*
|
|
* Maps the mm_struct mm into the current task struct.
|
|
- * On success, this function returns with the mutex
|
|
- * exec_update_mutex locked.
|
|
+ * On success, this function returns with exec_update_lock
|
|
+ * held for writing.
|
|
*/
|
|
static int exec_mmap(struct mm_struct *mm)
|
|
{
|
|
@@ -981,7 +981,7 @@ static int exec_mmap(struct mm_struct *mm)
|
|
if (old_mm)
|
|
sync_mm_rss(old_mm);
|
|
|
|
- ret = mutex_lock_killable(&tsk->signal->exec_update_mutex);
|
|
+ ret = down_write_killable(&tsk->signal->exec_update_lock);
|
|
if (ret)
|
|
return ret;
|
|
|
|
@@ -995,7 +995,7 @@ static int exec_mmap(struct mm_struct *mm)
|
|
mmap_read_lock(old_mm);
|
|
if (unlikely(old_mm->core_state)) {
|
|
mmap_read_unlock(old_mm);
|
|
- mutex_unlock(&tsk->signal->exec_update_mutex);
|
|
+ up_write(&tsk->signal->exec_update_lock);
|
|
return -EINTR;
|
|
}
|
|
}
|
|
@@ -1382,7 +1382,7 @@ int begin_new_exec(struct linux_binprm * bprm)
|
|
return 0;
|
|
|
|
out_unlock:
|
|
- mutex_unlock(&me->signal->exec_update_mutex);
|
|
+ up_write(&me->signal->exec_update_lock);
|
|
out:
|
|
return retval;
|
|
}
|
|
@@ -1423,7 +1423,7 @@ void setup_new_exec(struct linux_binprm * bprm)
|
|
* some architectures like powerpc
|
|
*/
|
|
me->mm->task_size = TASK_SIZE;
|
|
- mutex_unlock(&me->signal->exec_update_mutex);
|
|
+ up_write(&me->signal->exec_update_lock);
|
|
mutex_unlock(&me->signal->cred_guard_mutex);
|
|
}
|
|
EXPORT_SYMBOL(setup_new_exec);
|
|
diff --git a/fs/fuse/acl.c b/fs/fuse/acl.c
|
|
index 5a48cee6d7d33..f529075a2ce87 100644
|
|
--- a/fs/fuse/acl.c
|
|
+++ b/fs/fuse/acl.c
|
|
@@ -19,6 +19,9 @@ struct posix_acl *fuse_get_acl(struct inode *inode, int type)
|
|
void *value = NULL;
|
|
struct posix_acl *acl;
|
|
|
|
+ if (fuse_is_bad(inode))
|
|
+ return ERR_PTR(-EIO);
|
|
+
|
|
if (!fc->posix_acl || fc->no_getxattr)
|
|
return NULL;
|
|
|
|
@@ -53,6 +56,9 @@ int fuse_set_acl(struct inode *inode, struct posix_acl *acl, int type)
|
|
const char *name;
|
|
int ret;
|
|
|
|
+ if (fuse_is_bad(inode))
|
|
+ return -EIO;
|
|
+
|
|
if (!fc->posix_acl || fc->no_setxattr)
|
|
return -EOPNOTSUPP;
|
|
|
|
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
|
|
index ff7dbeb16f88d..ffa031fe52933 100644
|
|
--- a/fs/fuse/dir.c
|
|
+++ b/fs/fuse/dir.c
|
|
@@ -202,7 +202,7 @@ static int fuse_dentry_revalidate(struct dentry *entry, unsigned int flags)
|
|
int ret;
|
|
|
|
inode = d_inode_rcu(entry);
|
|
- if (inode && is_bad_inode(inode))
|
|
+ if (inode && fuse_is_bad(inode))
|
|
goto invalid;
|
|
else if (time_before64(fuse_dentry_time(entry), get_jiffies_64()) ||
|
|
(flags & LOOKUP_REVAL)) {
|
|
@@ -463,6 +463,9 @@ static struct dentry *fuse_lookup(struct inode *dir, struct dentry *entry,
|
|
bool outarg_valid = true;
|
|
bool locked;
|
|
|
|
+ if (fuse_is_bad(dir))
|
|
+ return ERR_PTR(-EIO);
|
|
+
|
|
locked = fuse_lock_inode(dir);
|
|
err = fuse_lookup_name(dir->i_sb, get_node_id(dir), &entry->d_name,
|
|
&outarg, &inode);
|
|
@@ -606,6 +609,9 @@ static int fuse_atomic_open(struct inode *dir, struct dentry *entry,
|
|
struct fuse_conn *fc = get_fuse_conn(dir);
|
|
struct dentry *res = NULL;
|
|
|
|
+ if (fuse_is_bad(dir))
|
|
+ return -EIO;
|
|
+
|
|
if (d_in_lookup(entry)) {
|
|
res = fuse_lookup(dir, entry, 0);
|
|
if (IS_ERR(res))
|
|
@@ -654,6 +660,9 @@ static int create_new_entry(struct fuse_mount *fm, struct fuse_args *args,
|
|
int err;
|
|
struct fuse_forget_link *forget;
|
|
|
|
+ if (fuse_is_bad(dir))
|
|
+ return -EIO;
|
|
+
|
|
forget = fuse_alloc_forget();
|
|
if (!forget)
|
|
return -ENOMEM;
|
|
@@ -781,6 +790,9 @@ static int fuse_unlink(struct inode *dir, struct dentry *entry)
|
|
struct fuse_mount *fm = get_fuse_mount(dir);
|
|
FUSE_ARGS(args);
|
|
|
|
+ if (fuse_is_bad(dir))
|
|
+ return -EIO;
|
|
+
|
|
args.opcode = FUSE_UNLINK;
|
|
args.nodeid = get_node_id(dir);
|
|
args.in_numargs = 1;
|
|
@@ -817,6 +829,9 @@ static int fuse_rmdir(struct inode *dir, struct dentry *entry)
|
|
struct fuse_mount *fm = get_fuse_mount(dir);
|
|
FUSE_ARGS(args);
|
|
|
|
+ if (fuse_is_bad(dir))
|
|
+ return -EIO;
|
|
+
|
|
args.opcode = FUSE_RMDIR;
|
|
args.nodeid = get_node_id(dir);
|
|
args.in_numargs = 1;
|
|
@@ -895,6 +910,9 @@ static int fuse_rename2(struct inode *olddir, struct dentry *oldent,
|
|
struct fuse_conn *fc = get_fuse_conn(olddir);
|
|
int err;
|
|
|
|
+ if (fuse_is_bad(olddir))
|
|
+ return -EIO;
|
|
+
|
|
if (flags & ~(RENAME_NOREPLACE | RENAME_EXCHANGE | RENAME_WHITEOUT))
|
|
return -EINVAL;
|
|
|
|
@@ -1030,7 +1048,7 @@ static int fuse_do_getattr(struct inode *inode, struct kstat *stat,
|
|
if (!err) {
|
|
if (fuse_invalid_attr(&outarg.attr) ||
|
|
(inode->i_mode ^ outarg.attr.mode) & S_IFMT) {
|
|
- make_bad_inode(inode);
|
|
+ fuse_make_bad(inode);
|
|
err = -EIO;
|
|
} else {
|
|
fuse_change_attributes(inode, &outarg.attr,
|
|
@@ -1232,6 +1250,9 @@ static int fuse_permission(struct inode *inode, int mask)
|
|
bool refreshed = false;
|
|
int err = 0;
|
|
|
|
+ if (fuse_is_bad(inode))
|
|
+ return -EIO;
|
|
+
|
|
if (!fuse_allow_current_process(fc))
|
|
return -EACCES;
|
|
|
|
@@ -1327,7 +1348,7 @@ static const char *fuse_get_link(struct dentry *dentry, struct inode *inode,
|
|
int err;
|
|
|
|
err = -EIO;
|
|
- if (is_bad_inode(inode))
|
|
+ if (fuse_is_bad(inode))
|
|
goto out_err;
|
|
|
|
if (fc->cache_symlinks)
|
|
@@ -1375,7 +1396,7 @@ static int fuse_dir_fsync(struct file *file, loff_t start, loff_t end,
|
|
struct fuse_conn *fc = get_fuse_conn(inode);
|
|
int err;
|
|
|
|
- if (is_bad_inode(inode))
|
|
+ if (fuse_is_bad(inode))
|
|
return -EIO;
|
|
|
|
if (fc->no_fsyncdir)
|
|
@@ -1664,7 +1685,7 @@ int fuse_do_setattr(struct dentry *dentry, struct iattr *attr,
|
|
|
|
if (fuse_invalid_attr(&outarg.attr) ||
|
|
(inode->i_mode ^ outarg.attr.mode) & S_IFMT) {
|
|
- make_bad_inode(inode);
|
|
+ fuse_make_bad(inode);
|
|
err = -EIO;
|
|
goto error;
|
|
}
|
|
@@ -1727,6 +1748,9 @@ static int fuse_setattr(struct dentry *entry, struct iattr *attr)
|
|
struct file *file = (attr->ia_valid & ATTR_FILE) ? attr->ia_file : NULL;
|
|
int ret;
|
|
|
|
+ if (fuse_is_bad(inode))
|
|
+ return -EIO;
|
|
+
|
|
if (!fuse_allow_current_process(get_fuse_conn(inode)))
|
|
return -EACCES;
|
|
|
|
@@ -1785,6 +1809,9 @@ static int fuse_getattr(const struct path *path, struct kstat *stat,
|
|
struct inode *inode = d_inode(path->dentry);
|
|
struct fuse_conn *fc = get_fuse_conn(inode);
|
|
|
|
+ if (fuse_is_bad(inode))
|
|
+ return -EIO;
|
|
+
|
|
if (!fuse_allow_current_process(fc)) {
|
|
if (!request_mask) {
|
|
/*
|
|
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
|
|
index c03034e8c1529..8b306005453cc 100644
|
|
--- a/fs/fuse/file.c
|
|
+++ b/fs/fuse/file.c
|
|
@@ -226,6 +226,9 @@ int fuse_open_common(struct inode *inode, struct file *file, bool isdir)
|
|
bool dax_truncate = (file->f_flags & O_TRUNC) &&
|
|
fc->atomic_o_trunc && FUSE_IS_DAX(inode);
|
|
|
|
+ if (fuse_is_bad(inode))
|
|
+ return -EIO;
|
|
+
|
|
err = generic_file_open(inode, file);
|
|
if (err)
|
|
return err;
|
|
@@ -463,7 +466,7 @@ static int fuse_flush(struct file *file, fl_owner_t id)
|
|
FUSE_ARGS(args);
|
|
int err;
|
|
|
|
- if (is_bad_inode(inode))
|
|
+ if (fuse_is_bad(inode))
|
|
return -EIO;
|
|
|
|
err = write_inode_now(inode, 1);
|
|
@@ -535,7 +538,7 @@ static int fuse_fsync(struct file *file, loff_t start, loff_t end,
|
|
struct fuse_conn *fc = get_fuse_conn(inode);
|
|
int err;
|
|
|
|
- if (is_bad_inode(inode))
|
|
+ if (fuse_is_bad(inode))
|
|
return -EIO;
|
|
|
|
inode_lock(inode);
|
|
@@ -859,7 +862,7 @@ static int fuse_readpage(struct file *file, struct page *page)
|
|
int err;
|
|
|
|
err = -EIO;
|
|
- if (is_bad_inode(inode))
|
|
+ if (fuse_is_bad(inode))
|
|
goto out;
|
|
|
|
err = fuse_do_readpage(file, page);
|
|
@@ -952,7 +955,7 @@ static void fuse_readahead(struct readahead_control *rac)
|
|
struct fuse_conn *fc = get_fuse_conn(inode);
|
|
unsigned int i, max_pages, nr_pages = 0;
|
|
|
|
- if (is_bad_inode(inode))
|
|
+ if (fuse_is_bad(inode))
|
|
return;
|
|
|
|
max_pages = min_t(unsigned int, fc->max_pages,
|
|
@@ -1555,7 +1558,7 @@ static ssize_t fuse_file_read_iter(struct kiocb *iocb, struct iov_iter *to)
|
|
struct fuse_file *ff = file->private_data;
|
|
struct inode *inode = file_inode(file);
|
|
|
|
- if (is_bad_inode(inode))
|
|
+ if (fuse_is_bad(inode))
|
|
return -EIO;
|
|
|
|
if (FUSE_IS_DAX(inode))
|
|
@@ -1573,7 +1576,7 @@ static ssize_t fuse_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
|
|
struct fuse_file *ff = file->private_data;
|
|
struct inode *inode = file_inode(file);
|
|
|
|
- if (is_bad_inode(inode))
|
|
+ if (fuse_is_bad(inode))
|
|
return -EIO;
|
|
|
|
if (FUSE_IS_DAX(inode))
|
|
@@ -2172,7 +2175,7 @@ static int fuse_writepages(struct address_space *mapping,
|
|
int err;
|
|
|
|
err = -EIO;
|
|
- if (is_bad_inode(inode))
|
|
+ if (fuse_is_bad(inode))
|
|
goto out;
|
|
|
|
data.inode = inode;
|
|
@@ -2954,7 +2957,7 @@ long fuse_ioctl_common(struct file *file, unsigned int cmd,
|
|
if (!fuse_allow_current_process(fc))
|
|
return -EACCES;
|
|
|
|
- if (is_bad_inode(inode))
|
|
+ if (fuse_is_bad(inode))
|
|
return -EIO;
|
|
|
|
return fuse_do_ioctl(file, cmd, arg, flags);
|
|
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
|
|
index d51598017d133..404d66f01e8d7 100644
|
|
--- a/fs/fuse/fuse_i.h
|
|
+++ b/fs/fuse/fuse_i.h
|
|
@@ -172,6 +172,8 @@ enum {
|
|
FUSE_I_INIT_RDPLUS,
|
|
/** An operation changing file size is in progress */
|
|
FUSE_I_SIZE_UNSTABLE,
|
|
+ /* Bad inode */
|
|
+ FUSE_I_BAD,
|
|
};
|
|
|
|
struct fuse_conn;
|
|
@@ -858,6 +860,16 @@ static inline u64 fuse_get_attr_version(struct fuse_conn *fc)
|
|
return atomic64_read(&fc->attr_version);
|
|
}
|
|
|
|
+static inline void fuse_make_bad(struct inode *inode)
|
|
+{
|
|
+ set_bit(FUSE_I_BAD, &get_fuse_inode(inode)->state);
|
|
+}
|
|
+
|
|
+static inline bool fuse_is_bad(struct inode *inode)
|
|
+{
|
|
+ return unlikely(test_bit(FUSE_I_BAD, &get_fuse_inode(inode)->state));
|
|
+}
|
|
+
|
|
/** Device operations */
|
|
extern const struct file_operations fuse_dev_operations;
|
|
|
|
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
|
|
index 1a47afc95f800..f94b0bb57619c 100644
|
|
--- a/fs/fuse/inode.c
|
|
+++ b/fs/fuse/inode.c
|
|
@@ -132,7 +132,7 @@ static void fuse_evict_inode(struct inode *inode)
|
|
fi->forget = NULL;
|
|
}
|
|
}
|
|
- if (S_ISREG(inode->i_mode) && !is_bad_inode(inode)) {
|
|
+ if (S_ISREG(inode->i_mode) && !fuse_is_bad(inode)) {
|
|
WARN_ON(!list_empty(&fi->write_files));
|
|
WARN_ON(!list_empty(&fi->queued_writes));
|
|
}
|
|
@@ -342,7 +342,7 @@ retry:
|
|
unlock_new_inode(inode);
|
|
} else if ((inode->i_mode ^ attr->mode) & S_IFMT) {
|
|
/* Inode has changed type, any I/O on the old should fail */
|
|
- make_bad_inode(inode);
|
|
+ fuse_make_bad(inode);
|
|
iput(inode);
|
|
goto retry;
|
|
}
|
|
diff --git a/fs/fuse/readdir.c b/fs/fuse/readdir.c
|
|
index 3b5e91045871a..3441ffa740f3d 100644
|
|
--- a/fs/fuse/readdir.c
|
|
+++ b/fs/fuse/readdir.c
|
|
@@ -207,7 +207,7 @@ retry:
|
|
dput(dentry);
|
|
goto retry;
|
|
}
|
|
- if (is_bad_inode(inode)) {
|
|
+ if (fuse_is_bad(inode)) {
|
|
dput(dentry);
|
|
return -EIO;
|
|
}
|
|
@@ -568,7 +568,7 @@ int fuse_readdir(struct file *file, struct dir_context *ctx)
|
|
struct inode *inode = file_inode(file);
|
|
int err;
|
|
|
|
- if (is_bad_inode(inode))
|
|
+ if (fuse_is_bad(inode))
|
|
return -EIO;
|
|
|
|
mutex_lock(&ff->readdir.lock);
|
|
diff --git a/fs/fuse/xattr.c b/fs/fuse/xattr.c
|
|
index 371bdcbc72337..cdea18de94f7e 100644
|
|
--- a/fs/fuse/xattr.c
|
|
+++ b/fs/fuse/xattr.c
|
|
@@ -113,6 +113,9 @@ ssize_t fuse_listxattr(struct dentry *entry, char *list, size_t size)
|
|
struct fuse_getxattr_out outarg;
|
|
ssize_t ret;
|
|
|
|
+ if (fuse_is_bad(inode))
|
|
+ return -EIO;
|
|
+
|
|
if (!fuse_allow_current_process(fm->fc))
|
|
return -EACCES;
|
|
|
|
@@ -178,6 +181,9 @@ static int fuse_xattr_get(const struct xattr_handler *handler,
|
|
struct dentry *dentry, struct inode *inode,
|
|
const char *name, void *value, size_t size)
|
|
{
|
|
+ if (fuse_is_bad(inode))
|
|
+ return -EIO;
|
|
+
|
|
return fuse_getxattr(inode, name, value, size);
|
|
}
|
|
|
|
@@ -186,6 +192,9 @@ static int fuse_xattr_set(const struct xattr_handler *handler,
|
|
const char *name, const void *value, size_t size,
|
|
int flags)
|
|
{
|
|
+ if (fuse_is_bad(inode))
|
|
+ return -EIO;
|
|
+
|
|
if (!value)
|
|
return fuse_removexattr(inode, name);
|
|
|
|
diff --git a/fs/proc/base.c b/fs/proc/base.c
|
|
index b362523a9829a..55ce0ee9c5c73 100644
|
|
--- a/fs/proc/base.c
|
|
+++ b/fs/proc/base.c
|
|
@@ -405,11 +405,11 @@ print0:
|
|
|
|
static int lock_trace(struct task_struct *task)
|
|
{
|
|
- int err = mutex_lock_killable(&task->signal->exec_update_mutex);
|
|
+ int err = down_read_killable(&task->signal->exec_update_lock);
|
|
if (err)
|
|
return err;
|
|
if (!ptrace_may_access(task, PTRACE_MODE_ATTACH_FSCREDS)) {
|
|
- mutex_unlock(&task->signal->exec_update_mutex);
|
|
+ up_read(&task->signal->exec_update_lock);
|
|
return -EPERM;
|
|
}
|
|
return 0;
|
|
@@ -417,7 +417,7 @@ static int lock_trace(struct task_struct *task)
|
|
|
|
static void unlock_trace(struct task_struct *task)
|
|
{
|
|
- mutex_unlock(&task->signal->exec_update_mutex);
|
|
+ up_read(&task->signal->exec_update_lock);
|
|
}
|
|
|
|
#ifdef CONFIG_STACKTRACE
|
|
@@ -2930,7 +2930,7 @@ static int do_io_accounting(struct task_struct *task, struct seq_file *m, int wh
|
|
unsigned long flags;
|
|
int result;
|
|
|
|
- result = mutex_lock_killable(&task->signal->exec_update_mutex);
|
|
+ result = down_read_killable(&task->signal->exec_update_lock);
|
|
if (result)
|
|
return result;
|
|
|
|
@@ -2966,7 +2966,7 @@ static int do_io_accounting(struct task_struct *task, struct seq_file *m, int wh
|
|
result = 0;
|
|
|
|
out_unlock:
|
|
- mutex_unlock(&task->signal->exec_update_mutex);
|
|
+ up_read(&task->signal->exec_update_lock);
|
|
return result;
|
|
}
|
|
|
|
diff --git a/include/linux/kdev_t.h b/include/linux/kdev_t.h
|
|
index 85b5151911cfd..4856706fbfeb4 100644
|
|
--- a/include/linux/kdev_t.h
|
|
+++ b/include/linux/kdev_t.h
|
|
@@ -21,61 +21,61 @@
|
|
})
|
|
|
|
/* acceptable for old filesystems */
|
|
-static inline bool old_valid_dev(dev_t dev)
|
|
+static __always_inline bool old_valid_dev(dev_t dev)
|
|
{
|
|
return MAJOR(dev) < 256 && MINOR(dev) < 256;
|
|
}
|
|
|
|
-static inline u16 old_encode_dev(dev_t dev)
|
|
+static __always_inline u16 old_encode_dev(dev_t dev)
|
|
{
|
|
return (MAJOR(dev) << 8) | MINOR(dev);
|
|
}
|
|
|
|
-static inline dev_t old_decode_dev(u16 val)
|
|
+static __always_inline dev_t old_decode_dev(u16 val)
|
|
{
|
|
return MKDEV((val >> 8) & 255, val & 255);
|
|
}
|
|
|
|
-static inline u32 new_encode_dev(dev_t dev)
|
|
+static __always_inline u32 new_encode_dev(dev_t dev)
|
|
{
|
|
unsigned major = MAJOR(dev);
|
|
unsigned minor = MINOR(dev);
|
|
return (minor & 0xff) | (major << 8) | ((minor & ~0xff) << 12);
|
|
}
|
|
|
|
-static inline dev_t new_decode_dev(u32 dev)
|
|
+static __always_inline dev_t new_decode_dev(u32 dev)
|
|
{
|
|
unsigned major = (dev & 0xfff00) >> 8;
|
|
unsigned minor = (dev & 0xff) | ((dev >> 12) & 0xfff00);
|
|
return MKDEV(major, minor);
|
|
}
|
|
|
|
-static inline u64 huge_encode_dev(dev_t dev)
|
|
+static __always_inline u64 huge_encode_dev(dev_t dev)
|
|
{
|
|
return new_encode_dev(dev);
|
|
}
|
|
|
|
-static inline dev_t huge_decode_dev(u64 dev)
|
|
+static __always_inline dev_t huge_decode_dev(u64 dev)
|
|
{
|
|
return new_decode_dev(dev);
|
|
}
|
|
|
|
-static inline int sysv_valid_dev(dev_t dev)
|
|
+static __always_inline int sysv_valid_dev(dev_t dev)
|
|
{
|
|
return MAJOR(dev) < (1<<14) && MINOR(dev) < (1<<18);
|
|
}
|
|
|
|
-static inline u32 sysv_encode_dev(dev_t dev)
|
|
+static __always_inline u32 sysv_encode_dev(dev_t dev)
|
|
{
|
|
return MINOR(dev) | (MAJOR(dev) << 18);
|
|
}
|
|
|
|
-static inline unsigned sysv_major(u32 dev)
|
|
+static __always_inline unsigned sysv_major(u32 dev)
|
|
{
|
|
return (dev >> 18) & 0x3fff;
|
|
}
|
|
|
|
-static inline unsigned sysv_minor(u32 dev)
|
|
+static __always_inline unsigned sysv_minor(u32 dev)
|
|
{
|
|
return dev & 0x3ffff;
|
|
}
|
|
diff --git a/include/linux/rwsem.h b/include/linux/rwsem.h
|
|
index 25e3fde856178..4c715be487171 100644
|
|
--- a/include/linux/rwsem.h
|
|
+++ b/include/linux/rwsem.h
|
|
@@ -123,6 +123,7 @@ static inline int rwsem_is_contended(struct rw_semaphore *sem)
|
|
* lock for reading
|
|
*/
|
|
extern void down_read(struct rw_semaphore *sem);
|
|
+extern int __must_check down_read_interruptible(struct rw_semaphore *sem);
|
|
extern int __must_check down_read_killable(struct rw_semaphore *sem);
|
|
|
|
/*
|
|
@@ -171,6 +172,7 @@ extern void downgrade_write(struct rw_semaphore *sem);
|
|
* See Documentation/locking/lockdep-design.rst for more details.)
|
|
*/
|
|
extern void down_read_nested(struct rw_semaphore *sem, int subclass);
|
|
+extern int __must_check down_read_killable_nested(struct rw_semaphore *sem, int subclass);
|
|
extern void down_write_nested(struct rw_semaphore *sem, int subclass);
|
|
extern int down_write_killable_nested(struct rw_semaphore *sem, int subclass);
|
|
extern void _down_write_nest_lock(struct rw_semaphore *sem, struct lockdep_map *nest_lock);
|
|
@@ -191,6 +193,7 @@ extern void down_read_non_owner(struct rw_semaphore *sem);
|
|
extern void up_read_non_owner(struct rw_semaphore *sem);
|
|
#else
|
|
# define down_read_nested(sem, subclass) down_read(sem)
|
|
+# define down_read_killable_nested(sem, subclass) down_read_killable(sem)
|
|
# define down_write_nest_lock(sem, nest_lock) down_write(sem)
|
|
# define down_write_nested(sem, subclass) down_write(sem)
|
|
# define down_write_killable_nested(sem, subclass) down_write_killable(sem)
|
|
diff --git a/include/linux/sched/signal.h b/include/linux/sched/signal.h
|
|
index 1bad18a1d8ba7..4b6a8234d7fc2 100644
|
|
--- a/include/linux/sched/signal.h
|
|
+++ b/include/linux/sched/signal.h
|
|
@@ -228,12 +228,13 @@ struct signal_struct {
|
|
* credential calculations
|
|
* (notably. ptrace)
|
|
* Deprecated do not use in new code.
|
|
- * Use exec_update_mutex instead.
|
|
- */
|
|
- struct mutex exec_update_mutex; /* Held while task_struct is being
|
|
- * updated during exec, and may have
|
|
- * inconsistent permissions.
|
|
+ * Use exec_update_lock instead.
|
|
*/
|
|
+ struct rw_semaphore exec_update_lock; /* Held while task_struct is
|
|
+ * being updated during exec,
|
|
+ * and may have inconsistent
|
|
+ * permissions.
|
|
+ */
|
|
} __randomize_layout;
|
|
|
|
/*
|
|
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
|
|
index 9bf6c319a670e..65771bef5e654 100644
|
|
--- a/include/rdma/ib_verbs.h
|
|
+++ b/include/rdma/ib_verbs.h
|
|
@@ -3943,6 +3943,16 @@ static inline int ib_req_ncomp_notif(struct ib_cq *cq, int wc_cnt)
|
|
-ENOSYS;
|
|
}
|
|
|
|
+/*
|
|
+ * Drivers that don't need a DMA mapping at the RDMA layer, set dma_device to
|
|
+ * NULL. This causes the ib_dma* helpers to just stash the kernel virtual
|
|
+ * address into the dma address.
|
|
+ */
|
|
+static inline bool ib_uses_virt_dma(struct ib_device *dev)
|
|
+{
|
|
+ return IS_ENABLED(CONFIG_INFINIBAND_VIRT_DMA) && !dev->dma_device;
|
|
+}
|
|
+
|
|
/**
|
|
* ib_dma_mapping_error - check a DMA addr for error
|
|
* @dev: The device for which the dma_addr was created
|
|
@@ -3950,6 +3960,8 @@ static inline int ib_req_ncomp_notif(struct ib_cq *cq, int wc_cnt)
|
|
*/
|
|
static inline int ib_dma_mapping_error(struct ib_device *dev, u64 dma_addr)
|
|
{
|
|
+ if (ib_uses_virt_dma(dev))
|
|
+ return 0;
|
|
return dma_mapping_error(dev->dma_device, dma_addr);
|
|
}
|
|
|
|
@@ -3964,6 +3976,8 @@ static inline u64 ib_dma_map_single(struct ib_device *dev,
|
|
void *cpu_addr, size_t size,
|
|
enum dma_data_direction direction)
|
|
{
|
|
+ if (ib_uses_virt_dma(dev))
|
|
+ return (uintptr_t)cpu_addr;
|
|
return dma_map_single(dev->dma_device, cpu_addr, size, direction);
|
|
}
|
|
|
|
@@ -3978,7 +3992,8 @@ static inline void ib_dma_unmap_single(struct ib_device *dev,
|
|
u64 addr, size_t size,
|
|
enum dma_data_direction direction)
|
|
{
|
|
- dma_unmap_single(dev->dma_device, addr, size, direction);
|
|
+ if (!ib_uses_virt_dma(dev))
|
|
+ dma_unmap_single(dev->dma_device, addr, size, direction);
|
|
}
|
|
|
|
/**
|
|
@@ -3995,6 +4010,8 @@ static inline u64 ib_dma_map_page(struct ib_device *dev,
|
|
size_t size,
|
|
enum dma_data_direction direction)
|
|
{
|
|
+ if (ib_uses_virt_dma(dev))
|
|
+ return (uintptr_t)(page_address(page) + offset);
|
|
return dma_map_page(dev->dma_device, page, offset, size, direction);
|
|
}
|
|
|
|
@@ -4009,7 +4026,30 @@ static inline void ib_dma_unmap_page(struct ib_device *dev,
|
|
u64 addr, size_t size,
|
|
enum dma_data_direction direction)
|
|
{
|
|
- dma_unmap_page(dev->dma_device, addr, size, direction);
|
|
+ if (!ib_uses_virt_dma(dev))
|
|
+ dma_unmap_page(dev->dma_device, addr, size, direction);
|
|
+}
|
|
+
|
|
+int ib_dma_virt_map_sg(struct ib_device *dev, struct scatterlist *sg, int nents);
|
|
+static inline int ib_dma_map_sg_attrs(struct ib_device *dev,
|
|
+ struct scatterlist *sg, int nents,
|
|
+ enum dma_data_direction direction,
|
|
+ unsigned long dma_attrs)
|
|
+{
|
|
+ if (ib_uses_virt_dma(dev))
|
|
+ return ib_dma_virt_map_sg(dev, sg, nents);
|
|
+ return dma_map_sg_attrs(dev->dma_device, sg, nents, direction,
|
|
+ dma_attrs);
|
|
+}
|
|
+
|
|
+static inline void ib_dma_unmap_sg_attrs(struct ib_device *dev,
|
|
+ struct scatterlist *sg, int nents,
|
|
+ enum dma_data_direction direction,
|
|
+ unsigned long dma_attrs)
|
|
+{
|
|
+ if (!ib_uses_virt_dma(dev))
|
|
+ dma_unmap_sg_attrs(dev->dma_device, sg, nents, direction,
|
|
+ dma_attrs);
|
|
}
|
|
|
|
/**
|
|
@@ -4023,7 +4063,7 @@ static inline int ib_dma_map_sg(struct ib_device *dev,
|
|
struct scatterlist *sg, int nents,
|
|
enum dma_data_direction direction)
|
|
{
|
|
- return dma_map_sg(dev->dma_device, sg, nents, direction);
|
|
+ return ib_dma_map_sg_attrs(dev, sg, nents, direction, 0);
|
|
}
|
|
|
|
/**
|
|
@@ -4037,24 +4077,7 @@ static inline void ib_dma_unmap_sg(struct ib_device *dev,
|
|
struct scatterlist *sg, int nents,
|
|
enum dma_data_direction direction)
|
|
{
|
|
- dma_unmap_sg(dev->dma_device, sg, nents, direction);
|
|
-}
|
|
-
|
|
-static inline int ib_dma_map_sg_attrs(struct ib_device *dev,
|
|
- struct scatterlist *sg, int nents,
|
|
- enum dma_data_direction direction,
|
|
- unsigned long dma_attrs)
|
|
-{
|
|
- return dma_map_sg_attrs(dev->dma_device, sg, nents, direction,
|
|
- dma_attrs);
|
|
-}
|
|
-
|
|
-static inline void ib_dma_unmap_sg_attrs(struct ib_device *dev,
|
|
- struct scatterlist *sg, int nents,
|
|
- enum dma_data_direction direction,
|
|
- unsigned long dma_attrs)
|
|
-{
|
|
- dma_unmap_sg_attrs(dev->dma_device, sg, nents, direction, dma_attrs);
|
|
+ ib_dma_unmap_sg_attrs(dev, sg, nents, direction, 0);
|
|
}
|
|
|
|
/**
|
|
@@ -4065,6 +4088,8 @@ static inline void ib_dma_unmap_sg_attrs(struct ib_device *dev,
|
|
*/
|
|
static inline unsigned int ib_dma_max_seg_size(struct ib_device *dev)
|
|
{
|
|
+ if (ib_uses_virt_dma(dev))
|
|
+ return UINT_MAX;
|
|
return dma_get_max_seg_size(dev->dma_device);
|
|
}
|
|
|
|
@@ -4080,7 +4105,8 @@ static inline void ib_dma_sync_single_for_cpu(struct ib_device *dev,
|
|
size_t size,
|
|
enum dma_data_direction dir)
|
|
{
|
|
- dma_sync_single_for_cpu(dev->dma_device, addr, size, dir);
|
|
+ if (!ib_uses_virt_dma(dev))
|
|
+ dma_sync_single_for_cpu(dev->dma_device, addr, size, dir);
|
|
}
|
|
|
|
/**
|
|
@@ -4095,7 +4121,8 @@ static inline void ib_dma_sync_single_for_device(struct ib_device *dev,
|
|
size_t size,
|
|
enum dma_data_direction dir)
|
|
{
|
|
- dma_sync_single_for_device(dev->dma_device, addr, size, dir);
|
|
+ if (!ib_uses_virt_dma(dev))
|
|
+ dma_sync_single_for_device(dev->dma_device, addr, size, dir);
|
|
}
|
|
|
|
/**
|
|
diff --git a/init/init_task.c b/init/init_task.c
|
|
index a56f0abb63e93..15f6eb93a04fa 100644
|
|
--- a/init/init_task.c
|
|
+++ b/init/init_task.c
|
|
@@ -26,7 +26,7 @@ static struct signal_struct init_signals = {
|
|
.multiprocess = HLIST_HEAD_INIT,
|
|
.rlim = INIT_RLIMITS,
|
|
.cred_guard_mutex = __MUTEX_INITIALIZER(init_signals.cred_guard_mutex),
|
|
- .exec_update_mutex = __MUTEX_INITIALIZER(init_signals.exec_update_mutex),
|
|
+ .exec_update_lock = __RWSEM_INITIALIZER(init_signals.exec_update_lock),
|
|
#ifdef CONFIG_POSIX_TIMERS
|
|
.posix_timers = LIST_HEAD_INIT(init_signals.posix_timers),
|
|
.cputimer = {
|
|
diff --git a/kernel/events/core.c b/kernel/events/core.c
|
|
index dc568ca295bdc..c3ba29d058b73 100644
|
|
--- a/kernel/events/core.c
|
|
+++ b/kernel/events/core.c
|
|
@@ -1325,7 +1325,7 @@ static void put_ctx(struct perf_event_context *ctx)
|
|
* function.
|
|
*
|
|
* Lock order:
|
|
- * exec_update_mutex
|
|
+ * exec_update_lock
|
|
* task_struct::perf_event_mutex
|
|
* perf_event_context::mutex
|
|
* perf_event::child_mutex;
|
|
@@ -11720,24 +11720,6 @@ SYSCALL_DEFINE5(perf_event_open,
|
|
goto err_task;
|
|
}
|
|
|
|
- if (task) {
|
|
- err = mutex_lock_interruptible(&task->signal->exec_update_mutex);
|
|
- if (err)
|
|
- goto err_task;
|
|
-
|
|
- /*
|
|
- * Preserve ptrace permission check for backwards compatibility.
|
|
- *
|
|
- * We must hold exec_update_mutex across this and any potential
|
|
- * perf_install_in_context() call for this new event to
|
|
- * serialize against exec() altering our credentials (and the
|
|
- * perf_event_exit_task() that could imply).
|
|
- */
|
|
- err = -EACCES;
|
|
- if (!perfmon_capable() && !ptrace_may_access(task, PTRACE_MODE_READ_REALCREDS))
|
|
- goto err_cred;
|
|
- }
|
|
-
|
|
if (flags & PERF_FLAG_PID_CGROUP)
|
|
cgroup_fd = pid;
|
|
|
|
@@ -11745,7 +11727,7 @@ SYSCALL_DEFINE5(perf_event_open,
|
|
NULL, NULL, cgroup_fd);
|
|
if (IS_ERR(event)) {
|
|
err = PTR_ERR(event);
|
|
- goto err_cred;
|
|
+ goto err_task;
|
|
}
|
|
|
|
if (is_sampling_event(event)) {
|
|
@@ -11864,6 +11846,24 @@ SYSCALL_DEFINE5(perf_event_open,
|
|
goto err_context;
|
|
}
|
|
|
|
+ if (task) {
|
|
+ err = down_read_interruptible(&task->signal->exec_update_lock);
|
|
+ if (err)
|
|
+ goto err_file;
|
|
+
|
|
+ /*
|
|
+ * Preserve ptrace permission check for backwards compatibility.
|
|
+ *
|
|
+ * We must hold exec_update_lock across this and any potential
|
|
+ * perf_install_in_context() call for this new event to
|
|
+ * serialize against exec() altering our credentials (and the
|
|
+ * perf_event_exit_task() that could imply).
|
|
+ */
|
|
+ err = -EACCES;
|
|
+ if (!perfmon_capable() && !ptrace_may_access(task, PTRACE_MODE_READ_REALCREDS))
|
|
+ goto err_cred;
|
|
+ }
|
|
+
|
|
if (move_group) {
|
|
gctx = __perf_event_ctx_lock_double(group_leader, ctx);
|
|
|
|
@@ -12017,7 +12017,7 @@ SYSCALL_DEFINE5(perf_event_open,
|
|
mutex_unlock(&ctx->mutex);
|
|
|
|
if (task) {
|
|
- mutex_unlock(&task->signal->exec_update_mutex);
|
|
+ up_read(&task->signal->exec_update_lock);
|
|
put_task_struct(task);
|
|
}
|
|
|
|
@@ -12039,7 +12039,10 @@ err_locked:
|
|
if (move_group)
|
|
perf_event_ctx_unlock(group_leader, gctx);
|
|
mutex_unlock(&ctx->mutex);
|
|
-/* err_file: */
|
|
+err_cred:
|
|
+ if (task)
|
|
+ up_read(&task->signal->exec_update_lock);
|
|
+err_file:
|
|
fput(event_file);
|
|
err_context:
|
|
perf_unpin_context(ctx);
|
|
@@ -12051,9 +12054,6 @@ err_alloc:
|
|
*/
|
|
if (!event_file)
|
|
free_event(event);
|
|
-err_cred:
|
|
- if (task)
|
|
- mutex_unlock(&task->signal->exec_update_mutex);
|
|
err_task:
|
|
if (task)
|
|
put_task_struct(task);
|
|
@@ -12358,7 +12358,7 @@ static void perf_event_exit_task_context(struct task_struct *child, int ctxn)
|
|
/*
|
|
* When a child task exits, feed back event values to parent events.
|
|
*
|
|
- * Can be called with exec_update_mutex held when called from
|
|
+ * Can be called with exec_update_lock held when called from
|
|
* setup_new_exec().
|
|
*/
|
|
void perf_event_exit_task(struct task_struct *child)
|
|
diff --git a/kernel/fork.c b/kernel/fork.c
|
|
index dc55f68a6ee36..c675fdbd3dce1 100644
|
|
--- a/kernel/fork.c
|
|
+++ b/kernel/fork.c
|
|
@@ -1222,7 +1222,7 @@ struct mm_struct *mm_access(struct task_struct *task, unsigned int mode)
|
|
struct mm_struct *mm;
|
|
int err;
|
|
|
|
- err = mutex_lock_killable(&task->signal->exec_update_mutex);
|
|
+ err = down_read_killable(&task->signal->exec_update_lock);
|
|
if (err)
|
|
return ERR_PTR(err);
|
|
|
|
@@ -1232,7 +1232,7 @@ struct mm_struct *mm_access(struct task_struct *task, unsigned int mode)
|
|
mmput(mm);
|
|
mm = ERR_PTR(-EACCES);
|
|
}
|
|
- mutex_unlock(&task->signal->exec_update_mutex);
|
|
+ up_read(&task->signal->exec_update_lock);
|
|
|
|
return mm;
|
|
}
|
|
@@ -1592,7 +1592,7 @@ static int copy_signal(unsigned long clone_flags, struct task_struct *tsk)
|
|
sig->oom_score_adj_min = current->signal->oom_score_adj_min;
|
|
|
|
mutex_init(&sig->cred_guard_mutex);
|
|
- mutex_init(&sig->exec_update_mutex);
|
|
+ init_rwsem(&sig->exec_update_lock);
|
|
|
|
return 0;
|
|
}
|
|
diff --git a/kernel/kcmp.c b/kernel/kcmp.c
|
|
index b3ff9288c6cc9..c0d2ad9b4705d 100644
|
|
--- a/kernel/kcmp.c
|
|
+++ b/kernel/kcmp.c
|
|
@@ -75,25 +75,25 @@ get_file_raw_ptr(struct task_struct *task, unsigned int idx)
|
|
return file;
|
|
}
|
|
|
|
-static void kcmp_unlock(struct mutex *m1, struct mutex *m2)
|
|
+static void kcmp_unlock(struct rw_semaphore *l1, struct rw_semaphore *l2)
|
|
{
|
|
- if (likely(m2 != m1))
|
|
- mutex_unlock(m2);
|
|
- mutex_unlock(m1);
|
|
+ if (likely(l2 != l1))
|
|
+ up_read(l2);
|
|
+ up_read(l1);
|
|
}
|
|
|
|
-static int kcmp_lock(struct mutex *m1, struct mutex *m2)
|
|
+static int kcmp_lock(struct rw_semaphore *l1, struct rw_semaphore *l2)
|
|
{
|
|
int err;
|
|
|
|
- if (m2 > m1)
|
|
- swap(m1, m2);
|
|
+ if (l2 > l1)
|
|
+ swap(l1, l2);
|
|
|
|
- err = mutex_lock_killable(m1);
|
|
- if (!err && likely(m1 != m2)) {
|
|
- err = mutex_lock_killable_nested(m2, SINGLE_DEPTH_NESTING);
|
|
+ err = down_read_killable(l1);
|
|
+ if (!err && likely(l1 != l2)) {
|
|
+ err = down_read_killable_nested(l2, SINGLE_DEPTH_NESTING);
|
|
if (err)
|
|
- mutex_unlock(m1);
|
|
+ up_read(l1);
|
|
}
|
|
|
|
return err;
|
|
@@ -173,8 +173,8 @@ SYSCALL_DEFINE5(kcmp, pid_t, pid1, pid_t, pid2, int, type,
|
|
/*
|
|
* One should have enough rights to inspect task details.
|
|
*/
|
|
- ret = kcmp_lock(&task1->signal->exec_update_mutex,
|
|
- &task2->signal->exec_update_mutex);
|
|
+ ret = kcmp_lock(&task1->signal->exec_update_lock,
|
|
+ &task2->signal->exec_update_lock);
|
|
if (ret)
|
|
goto err;
|
|
if (!ptrace_may_access(task1, PTRACE_MODE_READ_REALCREDS) ||
|
|
@@ -229,8 +229,8 @@ SYSCALL_DEFINE5(kcmp, pid_t, pid1, pid_t, pid2, int, type,
|
|
}
|
|
|
|
err_unlock:
|
|
- kcmp_unlock(&task1->signal->exec_update_mutex,
|
|
- &task2->signal->exec_update_mutex);
|
|
+ kcmp_unlock(&task1->signal->exec_update_lock,
|
|
+ &task2->signal->exec_update_lock);
|
|
err:
|
|
put_task_struct(task1);
|
|
put_task_struct(task2);
|
|
diff --git a/kernel/locking/rwsem.c b/kernel/locking/rwsem.c
|
|
index f11b9bd3431d2..a163542d178ee 100644
|
|
--- a/kernel/locking/rwsem.c
|
|
+++ b/kernel/locking/rwsem.c
|
|
@@ -1345,6 +1345,18 @@ static inline void __down_read(struct rw_semaphore *sem)
|
|
}
|
|
}
|
|
|
|
+static inline int __down_read_interruptible(struct rw_semaphore *sem)
|
|
+{
|
|
+ if (!rwsem_read_trylock(sem)) {
|
|
+ if (IS_ERR(rwsem_down_read_slowpath(sem, TASK_INTERRUPTIBLE)))
|
|
+ return -EINTR;
|
|
+ DEBUG_RWSEMS_WARN_ON(!is_rwsem_reader_owned(sem), sem);
|
|
+ } else {
|
|
+ rwsem_set_reader_owned(sem);
|
|
+ }
|
|
+ return 0;
|
|
+}
|
|
+
|
|
static inline int __down_read_killable(struct rw_semaphore *sem)
|
|
{
|
|
if (!rwsem_read_trylock(sem)) {
|
|
@@ -1495,6 +1507,20 @@ void __sched down_read(struct rw_semaphore *sem)
|
|
}
|
|
EXPORT_SYMBOL(down_read);
|
|
|
|
+int __sched down_read_interruptible(struct rw_semaphore *sem)
|
|
+{
|
|
+ might_sleep();
|
|
+ rwsem_acquire_read(&sem->dep_map, 0, 0, _RET_IP_);
|
|
+
|
|
+ if (LOCK_CONTENDED_RETURN(sem, __down_read_trylock, __down_read_interruptible)) {
|
|
+ rwsem_release(&sem->dep_map, _RET_IP_);
|
|
+ return -EINTR;
|
|
+ }
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+EXPORT_SYMBOL(down_read_interruptible);
|
|
+
|
|
int __sched down_read_killable(struct rw_semaphore *sem)
|
|
{
|
|
might_sleep();
|
|
@@ -1605,6 +1631,20 @@ void down_read_nested(struct rw_semaphore *sem, int subclass)
|
|
}
|
|
EXPORT_SYMBOL(down_read_nested);
|
|
|
|
+int down_read_killable_nested(struct rw_semaphore *sem, int subclass)
|
|
+{
|
|
+ might_sleep();
|
|
+ rwsem_acquire_read(&sem->dep_map, subclass, 0, _RET_IP_);
|
|
+
|
|
+ if (LOCK_CONTENDED_RETURN(sem, __down_read_trylock, __down_read_killable)) {
|
|
+ rwsem_release(&sem->dep_map, _RET_IP_);
|
|
+ return -EINTR;
|
|
+ }
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+EXPORT_SYMBOL(down_read_killable_nested);
|
|
+
|
|
void _down_write_nest_lock(struct rw_semaphore *sem, struct lockdep_map *nest)
|
|
{
|
|
might_sleep();
|
|
diff --git a/kernel/pid.c b/kernel/pid.c
|
|
index a96bc4bf4f869..4856818c9de1a 100644
|
|
--- a/kernel/pid.c
|
|
+++ b/kernel/pid.c
|
|
@@ -628,7 +628,7 @@ static struct file *__pidfd_fget(struct task_struct *task, int fd)
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struct file *file;
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int ret;
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- ret = mutex_lock_killable(&task->signal->exec_update_mutex);
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+ ret = down_read_killable(&task->signal->exec_update_lock);
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if (ret)
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return ERR_PTR(ret);
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@@ -637,7 +637,7 @@ static struct file *__pidfd_fget(struct task_struct *task, int fd)
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else
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file = ERR_PTR(-EPERM);
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- mutex_unlock(&task->signal->exec_update_mutex);
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+ up_read(&task->signal->exec_update_lock);
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return file ?: ERR_PTR(-EBADF);
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}
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diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
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index 502552d6e9aff..c4aa2cbb92697 100644
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--- a/net/bluetooth/hci_core.c
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+++ b/net/bluetooth/hci_core.c
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@@ -763,7 +763,7 @@ static int hci_init3_req(struct hci_request *req, unsigned long opt)
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hci_req_add(req, HCI_OP_LE_CLEAR_RESOLV_LIST, 0, NULL);
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}
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- if (hdev->commands[35] & 0x40) {
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+ if (hdev->commands[35] & 0x04) {
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__le16 rpa_timeout = cpu_to_le16(hdev->rpa_timeout);
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/* Set RPA timeout */
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diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
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index 2ddc27db8c012..d12b4799c3cb7 100644
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--- a/sound/pci/hda/patch_hdmi.c
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+++ b/sound/pci/hda/patch_hdmi.c
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@@ -1736,7 +1736,7 @@ static void silent_stream_disable(struct hda_codec *codec,
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per_pin->silent_stream = false;
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unlock_out:
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- mutex_unlock(&spec->pcm_lock);
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+ mutex_unlock(&per_pin->lock);
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}
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/* update ELD and jack state via audio component */
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diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
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index dde5ba2095415..006af6541dada 100644
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--- a/sound/pci/hda/patch_realtek.c
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+++ b/sound/pci/hda/patch_realtek.c
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@@ -7885,7 +7885,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
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SND_PCI_QUIRK(0x1028, 0x09bf, "Dell Precision", ALC233_FIXUP_ASUS_MIC_NO_PRESENCE),
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SND_PCI_QUIRK(0x1028, 0x0a2e, "Dell", ALC236_FIXUP_DELL_AIO_HEADSET_MIC),
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SND_PCI_QUIRK(0x1028, 0x0a30, "Dell", ALC236_FIXUP_DELL_AIO_HEADSET_MIC),
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- SND_PCI_QUIRK(0x1028, 0x0a58, "Dell Precision 3650 Tower", ALC255_FIXUP_DELL_HEADSET_MIC),
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+ SND_PCI_QUIRK(0x1028, 0x0a58, "Dell", ALC255_FIXUP_DELL_HEADSET_MIC),
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SND_PCI_QUIRK(0x1028, 0x164a, "Dell", ALC293_FIXUP_DELL1_MIC_NO_PRESENCE),
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SND_PCI_QUIRK(0x1028, 0x164b, "Dell", ALC293_FIXUP_DELL1_MIC_NO_PRESENCE),
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SND_PCI_QUIRK(0x103c, 0x1586, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC2),
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