From: tip-bot for Alexey Dobriyan <tipbot@zytor.com>
To: linux-tip-commits@vger.kernel.org
Cc: adobriyan@gmail.com, bp@suse.de, mingo@kernel.org,
tglx@linutronix.de, hpa@zytor.com, linux-kernel@vger.kernel.org
Subject: [tip:x86/pti] x86/alternatives: Fixup alternative_call_2
Date: Tue, 27 Mar 2018 00:51:53 -0700 [thread overview]
Message-ID: <tip-bd6271039ee6f0c9b468148fc2d73e0584af6b4f@git.kernel.org> (raw)
In-Reply-To: <20180114120504.GA11368@avx2>
Commit-ID: bd6271039ee6f0c9b468148fc2d73e0584af6b4f
Gitweb: https://git.kernel.org/tip/bd6271039ee6f0c9b468148fc2d73e0584af6b4f
Author: Alexey Dobriyan <adobriyan@gmail.com>
AuthorDate: Sun, 14 Jan 2018 15:05:04 +0300
Committer: Thomas Gleixner <tglx@linutronix.de>
CommitDate: Tue, 27 Mar 2018 09:47:53 +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
prev parent reply other threads:[~2018-03-27 7:52 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:x86/asm] x86/alternatives: Fixup alternative_call_2 tip-bot for Alexey Dobriyan
2018-03-27 7:51 ` tip-bot for Alexey Dobriyan [this message]
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-bd6271039ee6f0c9b468148fc2d73e0584af6b4f@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.