From: Lai Jiangshan <jiangshanlai@gmail.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: X86 ML <x86@kernel.org>, LKML <linux-kernel@vger.kernel.org>,
Josh Poimboeuf <jpoimboe@redhat.com>,
Brian Gerst <brgerst@gmail.com>,
Andrew Cooper <Andrew.Cooper3@citrix.com>,
Mark Rutland <mark.rutland@arm.com>
Subject: Re: [PATCH 4/6] x86/entry: Remove skip_r11rcx
Date: Sat, 7 May 2022 10:52:32 +0800 [thread overview]
Message-ID: <CAJhGHyBkpwn1=wVTeMCpQmiq_=n3HzsEzHiipkK8GmJfkYJJaQ@mail.gmail.com> (raw)
In-Reply-To: <20220506121631.365070674@infradead.org>
On Fri, May 6, 2022 at 8:20 PM Peter Zijlstra <peterz@infradead.org> wrote:
>
> Yes, r11 and rcx have been restored previously, but since we're
> popping them anyway (into rsi) might as well pop them into their own
> regs -- setting them to the value they already are.
>
> Less magical code.
>
> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Lai Jiangshan <jiangshanlai@gmail.com>
next prev parent reply other threads:[~2022-05-07 2:52 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-06 12:14 [PATCH 0/6] x86: Various cleanups and fixes Peter Zijlstra
2022-05-06 12:14 ` [PATCH 1/6] x86/mm: Simplify RESERVE_BRK() Peter Zijlstra
2022-05-06 15:09 ` [tip: x86/asm] " tip-bot2 for Josh Poimboeuf
2022-05-06 12:14 ` [PATCH 2/6] x86/entry: Simplify entry_INT80_compat() Peter Zijlstra
2022-05-06 15:09 ` [tip: x86/asm] " tip-bot2 for Linus Torvalds
2022-05-06 12:14 ` [PATCH 3/6] x86/entry: Use PUSH_AND_CLEAR_REGS for compat Peter Zijlstra
2022-05-06 15:09 ` [tip: x86/asm] " tip-bot2 for Peter Zijlstra
2022-05-07 2:54 ` [PATCH 3/6] " Lai Jiangshan
2022-05-19 16:24 ` Guenter Roeck
2022-05-19 17:00 ` Peter Zijlstra
2022-05-19 17:11 ` Josh Poimboeuf
2022-05-19 17:35 ` Josh Poimboeuf
2022-05-20 1:11 ` Lai Jiangshan
2022-05-20 2:46 ` Guenter Roeck
2022-05-20 15:55 ` Josh Poimboeuf
2022-05-06 12:14 ` [PATCH 4/6] x86/entry: Remove skip_r11rcx Peter Zijlstra
2022-05-06 15:09 ` [tip: x86/asm] " tip-bot2 for Peter Zijlstra
2022-05-07 2:52 ` Lai Jiangshan [this message]
2022-05-06 12:14 ` [PATCH 5/6] linkage: Fix issue with missing symbol size Peter Zijlstra
2022-05-06 15:08 ` [tip: x86/asm] " tip-bot2 for Peter Zijlstra
2022-05-06 12:14 ` [PATCH 6/6] objtool: Fix STACK_FRAME_NON_STANDARD reloc type Peter Zijlstra
2022-05-06 15:08 ` [tip: x86/asm] " tip-bot2 for Peter Zijlstra
2022-05-06 16:05 ` [PATCH 6/6] " Josh Poimboeuf
2022-05-06 20:26 ` [tip: x86/asm] " tip-bot2 for Peter Zijlstra
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