Re: [PATCH] iommu/vt-d: Fix W=1 clang warning in intel/perf.c

From: Nathan Chancellor
Date: Thu Jun 17 2021 - 16:51:30 EST

On 6/17/2021 1:30 PM, Joerg Roedel wrote:
On Thu, Jun 17, 2021 at 10:16:50AM -0700, Nick Desaulniers wrote:
On Thu, Jun 17, 2021 at 7:54 AM Joerg Roedel <joro@xxxxxxxxxx> wrote:

From: Joerg Roedel <jroedel@xxxxxxx>

Fix this warning when compiled with clang and W=1:

drivers/iommu/intel/perf.c:16: warning: Function parameter or member 'latency_lock' not described in 'DEFINE_SPINLOCK'
drivers/iommu/intel/perf.c:16: warning: expecting prototype for perf.c(). Prototype was for DEFINE_SPINLOCK() instead

I think these warnings are actually produced by kernel-doc? (not clang)

Will kernel-doc check automatically when COMPILER=clang is set and W=1?
Because I did not explicitly enable any kernel-doc checks.



kernel-doc is run automatically with W=1, regardless of gcc versus clang.