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Subject[PATCH v2 2/3] x86/fpu/xstate: Make xfeature_is_supervisor()/xfeature_is_user() return bool
Date
In the previous patch, xfeature_is_supervisor()'s description is revised,
and since xfeature_is_supervisor()/xfeature_is_user() are used only in
boolean context, make both return bool.

Suggested-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Yu-cheng Yu <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 0bd313351650..56e87d00a92f 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);
}
--
2.17.1
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