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cfg80211: remove @gfp parameter from cfg80211_rx_mgmt()

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In the cfg80211_rx_mgmt(), parameter @gfp was used for the memory allocation.
But, memory get allocated under spin_lock_bh(), this implies atomic context.
So, one can't use GFP_KERNEL, only variants with no __GFP_WAIT. Actually, in all
occurrences GFP_ATOMIC is used (wil6210 use GFP_KERNEL by mistake),
and it should be this way or warning triggered in the memory allocation code.

Remove @gfp parameter as no actual choice exist, and use hard coded
GFP_ATOMIC for memory allocation.

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Vladimir Kondratiev 2014-08-11 03:29:57 -07:00 • committed by Johannes Berg
parent 649b2a4da5
commit 970fdfa89b
9 changed files with 13 additions and 17 deletions
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3
include/net/cfg80211.h
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@ -4412,7 +4412,6 @@ void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
* @buf: Management frame (header + body)
* @len: length of the frame data
* @flags: flags, as defined in enum nl80211_rxmgmt_flags
* @gfp: context flags
*
* This function is called whenever an Action frame is received for a station
* mode interface, but is not processed in kernel.
@ -4423,7 +4422,7 @@ void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
* driver is responsible for rejecting the frame.
*/
bool cfg80211_rx_mgmt(struct wireless_dev *wdev, int freq, int sig_dbm,
const u8 *buf, size_t len, u32 flags, gfp_t gfp);
const u8 *buf, size_t len, u32 flags);
/**
* cfg80211_mgmt_tx_status - notification of TX status for management frame