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[for-next,1/2] IB/core: const'ify inbuf in struct ib_udata

Message ID d581225074f4b1fcae2cf0b861b0ec1a841d5b7a.1384869925.git.ydroneaud@opteya.com (mailing list archive)
State Superseded, archived
Headers show

Commit Message

Yann Droneaud Nov. 19, 2013, 2:22 p.m. UTC 
Userspace input buffer is not modified by kernel,
let it be 'const'.

It also a prerequisite to remove the implicit cast
from INIT_UDATA().

Signed-off-by: Yann Droneaud <ydroneaud@opteya.com>
Link: http://marc.info/?i=cover.1384869925.git.ydroneaud@opteya.com
Link: http://mid.gmane.org/cover.1376847403.git.ydroneaud@opteya.com
---
 drivers/infiniband/core/uverbs.h | 2 +-
 include/rdma/ib_verbs.h          | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
diff mbox

Patch

diff --git a/drivers/infiniband/core/uverbs.h b/drivers/infiniband/core/uverbs.h
index bdc842e..9879568 100644
--- a/drivers/infiniband/core/uverbs.h
+++ b/drivers/infiniband/core/uverbs.h
@@ -49,7 +49,7 @@ 
 
 #define INIT_UDATA(udata, ibuf, obuf, ilen, olen)			\
 	do {								\
-		(udata)->inbuf  = (void __user *) (ibuf);		\
+		(udata)->inbuf  = (const void __user *) (ibuf);		\
 		(udata)->outbuf = (void __user *) (obuf);		\
 		(udata)->inlen  = (ilen);				\
 		(udata)->outlen = (olen);				\
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 979874c..61e1935 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -978,7 +978,7 @@  struct ib_uobject {
 };
 
 struct ib_udata {
-	void __user *inbuf;
+	const void __user *inbuf;
 	void __user *outbuf;
 	size_t       inlen;
 	size_t       outlen;