x86/coco: Replace 'static const cc_mask' with the newly introduced cc_get_mask() function

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When extra warnings are enabled, the cc_mask definition in <asm/coco.h>
causes a build failure with GCC:

  arch/x86/include/asm/coco.h:28:18: error: 'cc_mask' defined but not used [-Werror=unused-const-variable=]
     28 | static const u64 cc_mask = 0;

Add a cc_get_mask() function mirroring cc_set_mask() for the one
user of the variable outside of the CoCo implementation.

Fixes: a0a8d15a79 ("x86/tdx: Preserve shared bit on mprotect()")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lore.kernel.org/r/20250310131114.2635497-1-arnd@kernel.org

--
v2: use an inline helper instead of a __maybe_unused annotaiton.

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Arnd Bergmann 2025-03-10 14:10:59 +01:00 • committed by Ingo Molnar

parent f739365158

commit ec73859d76

2 changed files with 10 additions and 2 deletions

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10

arch/x86/include/asm/coco.h

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2

arch/x86/include/asm/pgtable_types.h

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