linux-kernel - must_check attributes for bitmap functions.

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>] [day] [month] [year] [list]

Date:	Tue, 1 Aug 2006 14:53:21 -0400
From:	Dave Jones <davej@...hat.com>
To:	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: must_check attributes for bitmap functions.

I just unearthed this old patch I did.  I'm fairly certain I did
this in response to a bug where one of these functions went unchecked,
but I can't seem to find any reference of that bug any more.

Signed-off-by: Dave Jones <davej@...hat.com>


--- linux-2.6.15.noarch/include/linux/bitmap.h~	2006-02-17 14:05:18.000000000 -0500
+++ linux-2.6.15.noarch/include/linux/bitmap.h	2006-02-17 14:06:14.000000000 -0500
@@ -196,7 +196,7 @@ static inline void bitmap_complement(uns
 		__bitmap_complement(dst, src, nbits);
 }
 
-static inline int bitmap_equal(const unsigned long *src1,
+static inline int __must_check bitmap_equal(const unsigned long *src1,
 			const unsigned long *src2, int nbits)
 {
 	if (nbits <= BITS_PER_LONG)
@@ -205,7 +205,7 @@ static inline int bitmap_equal(const uns
 		return __bitmap_equal(src1, src2, nbits);
 }
 
-static inline int bitmap_intersects(const unsigned long *src1,
+static inline int __must_check bitmap_intersects(const unsigned long *src1,
 			const unsigned long *src2, int nbits)
 {
 	if (nbits <= BITS_PER_LONG)
@@ -214,7 +214,7 @@ static inline int bitmap_intersects(cons
 		return __bitmap_intersects(src1, src2, nbits);
 }
 
-static inline int bitmap_subset(const unsigned long *src1,
+static inline int __must_check bitmap_subset(const unsigned long *src1,
 			const unsigned long *src2, int nbits)
 {
 	if (nbits <= BITS_PER_LONG)
@@ -223,7 +223,7 @@ static inline int bitmap_subset(const un
 		return __bitmap_subset(src1, src2, nbits);
 }
 
-static inline int bitmap_empty(const unsigned long *src, int nbits)
+static inline int __must_check bitmap_empty(const unsigned long *src, int nbits)
 {
 	if (nbits <= BITS_PER_LONG)
 		return ! (*src & BITMAP_LAST_WORD_MASK(nbits));
@@ -231,7 +231,7 @@ static inline int bitmap_empty(const uns
 		return __bitmap_empty(src, nbits);
 }
 
-static inline int bitmap_full(const unsigned long *src, int nbits)
+static inline int __must_check bitmap_full(const unsigned long *src, int nbits)
 {
 	if (nbits <= BITS_PER_LONG)
 		return ! (~(*src) & BITMAP_LAST_WORD_MASK(nbits));
@@ -239,7 +239,7 @@ static inline int bitmap_full(const unsi
 		return __bitmap_full(src, nbits);
 }
 
-static inline int bitmap_weight(const unsigned long *src, int nbits)
+static inline int __must_check bitmap_weight(const unsigned long *src, int nbits)
 {
 	return __bitmap_weight(src, nbits);
 }

-- 
http://www.codemonkey.org.uk
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/