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x86/events: Mark expected switch-case fall-throughs

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In preparation to enable -Wimplicit-fallthrough by default, mark
switch-case statements where fall-through is intentional, explicitly in
order to fix a couple of -Wimplicit-fallthrough warnings.

Warning level 3 was used: -Wimplicit-fallthrough=3.

 [ bp: Massasge and trim commit message. ]

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jacek Tomaka <jacek.tomaka@poczta.fm>
Cc: Jia Zhang <qianyue.zj@alibaba-inc.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: x86-ml <x86@kernel.org>
Link: https://lkml.kernel.org/r/20190125184917.GA7289@embeddedor
This commit is contained in:
Gustavo A. R. Silva 2019-01-25 12:49:17 -06:00 committed by Borislav Petkov
parent fc5014cc55
commit 2b0fc3742b
2 changed files with 3 additions and 0 deletions
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2
arch/x86/events/intel/core.c
View File

@ -4168,6 +4168,8 @@ __init int intel_pmu_init(void)
case INTEL_FAM6_CORE2_MEROM:
x86_add_quirk(intel_clovertown_quirk);
/* fall through */
case INTEL_FAM6_CORE2_MEROM_L:
case INTEL_FAM6_CORE2_PENRYN:
case INTEL_FAM6_CORE2_DUNNINGTON:

1
arch/x86/events/intel/lbr.c
View File

@ -931,6 +931,7 @@ static int branch_type(unsigned long from, unsigned long to, int abort)
ret = X86_BR_ZERO_CALL;
break;
}
/* fall through */
case 0x9a: /* call far absolute */
ret = X86_BR_CALL;
break;