Commit 69a2fdf4 authored by Chang S. Bae's avatar Chang S. Bae Committed by Ingo Molnar
Browse files

x86/fpu/xstate: Simplify print_xstate_features() 



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: default avatarChang S. Bae <chang.seok.bae@intel.com>
Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
Reviewed-by: default avatarDave Hansen <dave.hansen@linux.intel.com>
Link: https://lore.kernel.org/r/20250227184502.10288-2-chang.seok.bae@intel.com
parent dc8aa31a

arch/x86/kernel/fpu/xstate.c

+9 −21
Original line number Diff line number Diff line
@@ -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);

	}

}



/*