Commit 158e2ee6 authored Dec 12, 2019 by Yu-cheng Yu Committed by Borislav Petkov Jan 06, 2020

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 <bp@suse.de>
Signed-off-by: Yu-cheng Yu <yu-cheng.yu@intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: "Ravi V. Shankar" <ravi.v.shankar@intel.com>
Cc: Rik van Riel <riel@surriel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: x86-ml <x86@kernel.org>
Link: https://lkml.kernel.org/r/20191212210855.19260-3-yu-cheng.yu@intel.com

parent 8c9e6073

arch/x86/kernel/fpu/xstate.c

+3 −3

Original line number	Diff line number	Diff line
		@@ -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);
		}

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