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: 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

diff --git a/arch/x86/kernel/fpu/xstate.c b/arch/x86/kernel/fpu/xstate.c
index 27417b685c1dbb13667c928dfa39b673b8f3f749..6a41d1610d8bc84c55e5c9eb61035645efae959f 100644 (file)
--- a/arch/x86/kernel/fpu/xstate.c
+++ b/arch/x86/kernel/fpu/xstate.c
@@ -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);
+       }
 }
 
 /*