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a85066840d
lockdep complaints about a locking recursion for the i2c bus lock because both the sdvo ddc proxy bus and the gmbus nested within use the same locking class. It's not really a deadlock since we never nest the other way round, but it's annoying. Fix it by pulling the gmbus locking into the i2c lock_ops for both i2c_adapater and making sure that the ddc_proxy_xfer function is entirely lockless. Re-layouting the extracted function resulted in some whitespace cleanups, I figured we might as well keep them. v2: Review from Chris: - s/locked/unlocked/ since I got the naming backwards - Use the vfuncs of the proxied adatper instead of re-rolling copies. That's more consistent with the other proxying we're doing. Cc: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20170726132647.31833-1-daniel.vetter@ffwll.ch |
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| README | ||
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.