linux-kernel - [PATCH 1/8] linux/types.h: enable endian checks for all sparse builds

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Message-ID: <1481778865-27667-2-git-send-email-mst@redhat.com>
Date:   Thu, 15 Dec 2016 07:15:11 +0200
From:   "Michael S. Tsirkin" <mst@...hat.com>
To:     linux-kernel@...r.kernel.org
Cc:     Linus Torvalds <torvalds@...ux-foundation.org>,
        Christoph Hellwig <hch@...radead.org>
Subject: [PATCH 1/8] linux/types.h: enable endian checks for all sparse builds

By now, linux is mostly endian-clean. Enabling endian-ness
checks for everyone produces about 200 new sparse warnings for me -
less than 10% over the 2000 sparse warnings already there.

Not a big deal, OTOH enabling this helps people notice
they are introducing new bugs.

So let's just drop __CHECK_ENDIAN__. Follow-up patches
can drop distinction between __bitwise and __bitwise__.

Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Suggested-by: Christoph Hellwig <hch@...radead.org>
Signed-off-by: Michael S. Tsirkin <mst@...hat.com>
---
 include/uapi/linux/types.h | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/include/uapi/linux/types.h b/include/uapi/linux/types.h
index acf0979..41e5914 100644
--- a/include/uapi/linux/types.h
+++ b/include/uapi/linux/types.h
@@ -23,11 +23,7 @@
 #else
 #define __bitwise__
 #endif
-#ifdef __CHECK_ENDIAN__
 #define __bitwise __bitwise__
-#else
-#define __bitwise
-#endif
 
 typedef __u16 __bitwise __le16;
 typedef __u16 __bitwise __be16;
-- 
MST