linux-kernel - [PATCH 2/6] move _body_io_syscall to the generic syscall.h

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: <20180104080325.14716-3-hch@lst.de>
Date:   Thu,  4 Jan 2018 09:03:21 +0100
From:   Christoph Hellwig <hch@....de>
To:     linux-aio@...ck.org
Cc:     Avi Kivity <avi@...lladb.com>, linux-fsdevel@...r.kernel.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 2/6] move _body_io_syscall to the generic syscall.h

This way it can be used for the fallback 6-argument version on
all architectures.

Signed-off-by: Christoph Hellwig <hch@....de>
---
 src/syscall-generic.h | 6 ------
 src/syscall.h         | 7 +++++++
 2 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/src/syscall-generic.h b/src/syscall-generic.h
index 24d7c7c..35b8580 100644
--- a/src/syscall-generic.h
+++ b/src/syscall-generic.h
@@ -2,12 +2,6 @@
 #include <unistd.h>
 #include <sys/syscall.h>
 
-#define _body_io_syscall(sname, args...) \
-{ \
-	int ret = syscall(__NR_##sname, ## args); \
-	return ret < 0 ? -errno : ret; \
-}
-
 #define io_syscall1(type,fname,sname,type1,arg1) \
 type fname(type1 arg1) \
 _body_io_syscall(sname, (long)arg1)
diff --git a/src/syscall.h b/src/syscall.h
index a2da030..3819519 100644
--- a/src/syscall.h
+++ b/src/syscall.h
@@ -10,6 +10,13 @@
 #define DEFSYMVER(compat_sym, orig_sym, ver_sym)	\
 	__asm__(".symver " SYMSTR(compat_sym) "," SYMSTR(orig_sym) "@@LIBAIO_" SYMSTR(ver_sym));
 
+/* generic fallback */
+#define _body_io_syscall(sname, args...) \
+{ \
+	int ret = syscall(__NR_##sname, ## args); \
+	return ret < 0 ? -errno : ret; \
+}
+
 #if defined(__i386__)
 #include "syscall-i386.h"
 #elif defined(__x86_64__)
-- 
2.14.2