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 PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Fri, 22 Mar 2019 15:08:11 +0100 From: Arnd Bergmann <arnd@...db.de> To: Ilya Dryomov <idryomov@...il.com>, "Yan, Zheng" <zyan@...hat.com>, Sage Weil <sage@...hat.com> Cc: clang-built-linux@...glegroups.com, Nick Desaulniers <ndesaulniers@...gle.com>, Nathan Chancellor <natechancellor@...il.com>, Arnd Bergmann <arnd@...db.de>, Alex Elder <elder@...aro.org>, ceph-devel@...r.kernel.org, linux-kernel@...r.kernel.org Subject: [PATCH] ceph: fix clang warning for CEPH_DEFINE_OID_ONSTACK clang complains about assigning a variable to itself during the declaration: fs/ceph/ioctl.c:187:26: error: variable 'oid' is uninitialized when used within its own initialization [-Werror,-Wuninitialized] CEPH_DEFINE_OID_ONSTACK(oid); ^~~ include/linux/ceph/osdmap.h:122:52: note: expanded from macro 'CEPH_DEFINE_OID_ONSTACK' struct ceph_object_id oid = CEPH_OID_INIT_ONSTACK(oid) ~~~ ^~~ include/linux/ceph/osdmap.h:120:29: note: expanded from macro 'CEPH_OID_INIT_ONSTACK' ({ ceph_oid_init(&oid); oid; }) ^~~ We use this trick in other places, but it is completely unnecessary here, as we can just use a regular struct initializer. Signed-off-by: Arnd Bergmann <arnd@...db.de> --- include/linux/ceph/osdmap.h | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/include/linux/ceph/osdmap.h b/include/linux/ceph/osdmap.h index 5675b1f09bc5..82f957a7a0d6 100644 --- a/include/linux/ceph/osdmap.h +++ b/include/linux/ceph/osdmap.h @@ -116,10 +116,8 @@ static inline void ceph_oid_init(struct ceph_object_id *oid) oid->name_len = 0; } -#define CEPH_OID_INIT_ONSTACK(oid) \ - ({ ceph_oid_init(&oid); oid; }) #define CEPH_DEFINE_OID_ONSTACK(oid) \ - struct ceph_object_id oid = CEPH_OID_INIT_ONSTACK(oid) + struct ceph_object_id oid = { .name = oid.inline_name } static inline bool ceph_oid_empty(const struct ceph_object_id *oid) { -- 2.20.0
Powered by blists - more mailing lists