x86/intel/cacheinfo: Shut up annoying warning
authorBorislav Petkov <bp@suse.de>
Mon, 4 Feb 2013 09:13:15 +0000 (10:13 +0100)
committerIngo Molnar <mingo@kernel.org>
Mon, 4 Feb 2013 10:29:52 +0000 (11:29 +0100)
commitf76e39c531304b114e27c3dd3e0036f56cd33df1
tree27437cfeac6a5979745c7ee6211c4356918d55e4
parent972f7c832229781f09f03284cde484ccdb44d3ee
x86/intel/cacheinfo: Shut up annoying warning

I've been getting the following warning when doing randbuilds
since forever. Now it finally pissed me off just the perfect
amount so that I can fix it.

  arch/x86/kernel/cpu/intel_cacheinfo.c:489:27: warning: ‘cache_disable_0’ defined but not used [-Wunused-variable]
  arch/x86/kernel/cpu/intel_cacheinfo.c:491:27: warning: ‘cache_disable_1’ defined but not used [-Wunused-variable] arch/x86/kernel/cpu/intel_cacheinfo.c:524:27: warning: ‘subcaches’ defined but not used [-Wunused-variable]

It happens because in randconfigs where CONFIG_SYSFS is not set,
the whole sysfs-interface to L3 cache index disabling is
remaining unused and gcc correctly warns about it. Make it
optional, depending on CONFIG_SYSFS too, as is the case with
other sysfs-related machinery in this file.

Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Andreas Herrmann <andreas.herrmann3@amd.com>
Link: http://lkml.kernel.org/r/1359969195-27362-1-git-send-email-bp@alien8.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
arch/x86/kernel/cpu/intel_cacheinfo.c