From: Prarit Bhargava <prarit@redhat.com>
To: linux-kernel@vger.kernel.org
Cc: Prarit Bhargava <prarit@redhat.com>,
x86@kernel.org, Borislav Petkov <bp@suse.de>,
Andy Lutomirski <luto@amacapital.net>
Subject: [PATCH] x86, msr, remove unused native_read_tscp()
Date: Tue, 22 Mar 2016 19:06:08 -0400 [thread overview]
Message-ID: <1458687968-9106-1-git-send-email-prarit@redhat.com> (raw)
After e76b027 ("x86,vdso: Use LSL unconditionally for vgetcpu")
native_read_tscp() is unused in the kernel. The function can be removed
like native_read_tsc() was.
[prarit@prarit linux]$ git grep native_read_tscp
arch/x86/include/asm/msr.h:45:static inline unsigned long long native_read_tscp(unsigned int *aux)
Cc: x86@kernel.org
Cc: Borislav Petkov <bp@suse.de>
Cc: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
---
arch/x86/include/asm/msr.h | 8 --------
1 file changed, 8 deletions(-)
diff --git a/arch/x86/include/asm/msr.h b/arch/x86/include/asm/msr.h
index 93fb7c1..7a79ee2 100644
--- a/arch/x86/include/asm/msr.h
+++ b/arch/x86/include/asm/msr.h
@@ -42,14 +42,6 @@ struct saved_msrs {
struct saved_msr *array;
};
-static inline unsigned long long native_read_tscp(unsigned int *aux)
-{
- unsigned long low, high;
- asm volatile(".byte 0x0f,0x01,0xf9"
- : "=a" (low), "=d" (high), "=c" (*aux));
- return low | ((u64)high << 32);
-}
-
/*
* both i386 and x86_64 returns 64-bit value in edx:eax, but gcc's "A"
* constraint has different meanings. For i386, "A" means exactly
--
1.7.9.3
next reply other threads:[~2016-03-22 23:06 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-22 23:06 Prarit Bhargava [this message]
2016-03-22 23:10 ` Andy Lutomirski
2016-03-23 11:40 ` [tip:x86/urgent] x86/msr: Remove " tip-bot for Prarit Bhargava
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