linux-kernel - [tip:x86/asm] x86/asm/tsc: Remove rdtscl()

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <tip-fe47ae6e1a5005b2e82f7eab57b5c3820453293a@git.kernel.org>
Date:	Mon, 6 Jul 2015 08:43:30 -0700
From:	tip-bot for Andy Lutomirski <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	hpa@...or.com, peterz@...radead.org, brgerst@...il.com,
	luto@...nel.org, bp@...e.de, john.stultz@...aro.org,
	mingo@...nel.org, ralf@...ux-mips.org, bp@...en8.de,
	torvalds@...ux-foundation.org, dvlasenk@...hat.com,
	linux-kernel@...r.kernel.org, lenb@...nel.org, kvm@...r.kernel.org,
	tglx@...utronix.de, ray.huang@....com, luto@...capital.net
Subject: [tip:x86/asm] x86/asm/tsc: Remove rdtscl()

Commit-ID:  fe47ae6e1a5005b2e82f7eab57b5c3820453293a
Gitweb:     http://git.kernel.org/tip/fe47ae6e1a5005b2e82f7eab57b5c3820453293a
Author:     Andy Lutomirski <luto@...nel.org>
AuthorDate: Thu, 25 Jun 2015 18:44:06 +0200
Committer:  Ingo Molnar <mingo@...nel.org>
CommitDate: Mon, 6 Jul 2015 15:23:28 +0200

x86/asm/tsc: Remove rdtscl()

It has no more callers, and it was never a very sensible
interface to begin with. Users of the TSC should either read all
64 bits or explicitly throw out the high bits.

Signed-off-by: Andy Lutomirski <luto@...nel.org>
Signed-off-by: Borislav Petkov <bp@...e.de>
Cc: Andy Lutomirski <luto@...capital.net>
Cc: Borislav Petkov <bp@...en8.de>
Cc: Brian Gerst <brgerst@...il.com>
Cc: Denys Vlasenko <dvlasenk@...hat.com>
Cc: H. Peter Anvin <hpa@...or.com>
Cc: Huang Rui <ray.huang@....com>
Cc: John Stultz <john.stultz@...aro.org>
Cc: Len Brown <lenb@...nel.org>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Ralf Baechle <ralf@...ux-mips.org>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: kvm ML <kvm@...r.kernel.org>
Link: http://lkml.kernel.org/r/250105f7cee519be9d7fc4464b5784caafc8f4fe.1434501121.git.luto@kernel.org
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 arch/x86/include/asm/msr.h | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/arch/x86/include/asm/msr.h b/arch/x86/include/asm/msr.h
index 626f781..c89ed6c 100644
--- a/arch/x86/include/asm/msr.h
+++ b/arch/x86/include/asm/msr.h
@@ -189,9 +189,6 @@ do {							\
 
 #endif	/* !CONFIG_PARAVIRT */
 
-#define rdtscl(low)						\
-	((low) = (u32)native_read_tsc())
-
 /*
  * 64-bit version of wrmsr_safe():
  */
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/