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x86/fpu/xstate: Simplify print_xstate_features()

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print_xstate_features() currently invokes print_xstate_feature() multiple
times on separate lines, which can be simplified in a loop.

print_xstate_feature() already checks the feature's enabled status and is
only called within print_xstate_features(). Inline print_xstate_feature()
and iterate over features in a loop to streamline the enabling message.

No functional changes.

Signed-off-by: Chang S. Bae <chang.seok.bae@intel.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Dave Hansen <dave.hansen@linux.intel.com>
Link: https://lore.kernel.org/r/20250227184502.10288-2-chang.seok.bae@intel.com
This commit is contained in:
Chang S. Bae
2025-02-27 10:44:46 -08:00
committed by Ingo Molnar
parent dc8aa31a7a
commit 69a2fdf446
1 changed files with 9 additions and 21 deletions
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30
arch/x86/kernel/fpu/xstate.c
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@@ -259,32 +259,20 @@ static void __init setup_xstate_cache(void)
}
}
static void __init print_xstate_feature(u64 xstate_mask)
{
const char *feature_name;
if (cpu_has_xfeatures(xstate_mask, &feature_name))
pr_info("x86/fpu: Supporting XSAVE feature 0x%03Lx: '%s'\n", xstate_mask, feature_name);
}
/*
* Print out all the supported xstate features:
*/
static void __init print_xstate_features(void)
{
print_xstate_feature(XFEATURE_MASK_FP);
print_xstate_feature(XFEATURE_MASK_SSE);
print_xstate_feature(XFEATURE_MASK_YMM);
print_xstate_feature(XFEATURE_MASK_BNDREGS);
print_xstate_feature(XFEATURE_MASK_BNDCSR);
print_xstate_feature(XFEATURE_MASK_OPMASK);
print_xstate_feature(XFEATURE_MASK_ZMM_Hi256);
print_xstate_feature(XFEATURE_MASK_Hi16_ZMM);
print_xstate_feature(XFEATURE_MASK_PKRU);
print_xstate_feature(XFEATURE_MASK_PASID);
print_xstate_feature(XFEATURE_MASK_CET_USER);
print_xstate_feature(XFEATURE_MASK_XTILE_CFG);
print_xstate_feature(XFEATURE_MASK_XTILE_DATA);
int i;
for (i = 0; i < XFEATURE_MAX; i++) {
u64 mask = BIT_ULL(i);
const char *name;
if (cpu_has_xfeatures(mask, &name))
pr_info("x86/fpu: Supporting XSAVE feature 0x%03Lx: '%s'\n", mask, name);
}
}
/*