All of lore.kernel.org
 help / color / mirror / Atom feed
From: tip-bot for Alexey Dobriyan <tipbot@zytor.com>
To: linux-tip-commits@vger.kernel.org
Cc: hpa@zytor.com, tglx@linutronix.de, adobriyan@gmail.com,
	linux-kernel@vger.kernel.org, bp@suse.de, mingo@kernel.org
Subject: [tip:x86/asm] x86/alternatives: Fixup alternative_call_2
Date: Mon, 26 Mar 2018 03:37:55 -0700	[thread overview]
Message-ID: <tip-668120ab7ee4db67618ec75a0ebc93eae6c70034@git.kernel.org> (raw)
In-Reply-To: <20180114120504.GA11368@avx2>

Commit-ID:  668120ab7ee4db67618ec75a0ebc93eae6c70034
Gitweb:     https://git.kernel.org/tip/668120ab7ee4db67618ec75a0ebc93eae6c70034
Author:     Alexey Dobriyan <adobriyan@gmail.com>
AuthorDate: Sun, 14 Jan 2018 15:05:04 +0300
Committer:  Thomas Gleixner <tglx@linutronix.de>
CommitDate: Mon, 26 Mar 2018 12:32:40 +0200

x86/alternatives: Fixup alternative_call_2

The following pattern fails to compile while the same pattern
with alternative_call() does:

	if (...)
		alternative_call_2(...);
	else
		alternative_call_2(...);

as it expands into

	if (...)
	{
	};	<===
	else
	{
	};

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20180114120504.GA11368@avx2

---
 arch/x86/include/asm/alternative.h | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/arch/x86/include/asm/alternative.h b/arch/x86/include/asm/alternative.h
index cf5961ca8677..4cd6a3b71824 100644
--- a/arch/x86/include/asm/alternative.h
+++ b/arch/x86/include/asm/alternative.h
@@ -218,13 +218,11 @@ static inline int alternatives_text_reserved(void *start, void *end)
  */
 #define alternative_call_2(oldfunc, newfunc1, feature1, newfunc2, feature2,   \
 			   output, input...)				      \
-{									      \
 	asm volatile (ALTERNATIVE_2("call %P[old]", "call %P[new1]", feature1,\
 		"call %P[new2]", feature2)				      \
 		: output, ASM_CALL_CONSTRAINT				      \
 		: [old] "i" (oldfunc), [new1] "i" (newfunc1),		      \
-		  [new2] "i" (newfunc2), ## input);			      \
-}
+		  [new2] "i" (newfunc2), ## input)
 
 /*
  * use this macro(s) if you need more than one output parameter

  reply	other threads:[~2018-03-26 10:38 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-12-25 15:06 [PATCH] x86/alternatives: fixup alternative_call_2 Alexey Dobriyan
2018-01-14 11:54 ` Thomas Gleixner
2018-01-14 12:05   ` [PATCH v2] " Alexey Dobriyan
2018-03-26 10:37     ` tip-bot for Alexey Dobriyan [this message]
2018-03-27  7:51     ` [tip:x86/pti] x86/alternatives: Fixup alternative_call_2 tip-bot for Alexey Dobriyan

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=tip-668120ab7ee4db67618ec75a0ebc93eae6c70034@git.kernel.org \
    --to=tipbot@zytor.com \
    --cc=adobriyan@gmail.com \
    --cc=bp@suse.de \
    --cc=hpa@zytor.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-tip-commits@vger.kernel.org \
    --cc=mingo@kernel.org \
    --cc=tglx@linutronix.de \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.