From 158e2ee61f22b878d61de92bea5aad3d2df1c146 Mon Sep 17 00:00:00 2001 From: Yu-cheng Yu Date: Thu, 12 Dec 2019 13:08:54 -0800 Subject: [PATCH] x86/fpu/xstate: Make xfeature_is_supervisor()/xfeature_is_user() return bool Have both xfeature_is_supervisor()/xfeature_is_user() return bool because they are used only in boolean context. Suggested-by: Borislav Petkov Signed-off-by: Yu-cheng Yu Signed-off-by: Borislav Petkov Acked-by: Sebastian Andrzej Siewior Cc: Andy Lutomirski Cc: Dave Hansen Cc: Fenghua Yu Cc: "H. Peter Anvin" Cc: Ingo Molnar Cc: Peter Zijlstra Cc: "Ravi V. Shankar" Cc: Rik van Riel Cc: Thomas Gleixner Cc: Tony Luck Cc: x86-ml Link: https://lkml.kernel.org/r/20191212210855.19260-3-yu-cheng.yu@intel.com --- arch/x86/kernel/fpu/xstate.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/x86/kernel/fpu/xstate.c b/arch/x86/kernel/fpu/xstate.c index 4588fc57203e5..a1806598aaa45 100644 --- a/arch/x86/kernel/fpu/xstate.c +++ b/arch/x86/kernel/fpu/xstate.c @@ -107,7 +107,7 @@ int cpu_has_xfeatures(u64 xfeatures_needed, const char **feature_name) } EXPORT_SYMBOL_GPL(cpu_has_xfeatures); -static int xfeature_is_supervisor(int xfeature_nr) +static bool xfeature_is_supervisor(int xfeature_nr) { /* * Extended State Enumeration Sub-leaves (EAX = 0DH, ECX = n, n > 1) @@ -117,10 +117,10 @@ static int xfeature_is_supervisor(int xfeature_nr) u32 eax, ebx, ecx, edx; cpuid_count(XSTATE_CPUID, xfeature_nr, &eax, &ebx, &ecx, &edx); - return !!(ecx & 1); + return ecx & 1; } -static int xfeature_is_user(int xfeature_nr) +static bool xfeature_is_user(int xfeature_nr) { return !xfeature_is_supervisor(xfeature_nr); } -- 2.30.2