linux-kernel - [PATCH 1/5] Fix cpumask_scnprintf

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-next>] [day] [month] [year] [list]

Message-ID: <20080507221450.GA14375@martell.zuzino.mipt.ru>
Date:	Thu, 8 May 2008 02:14:50 +0400
From:	Alexey Dobriyan <adobriyan@...il.com>
To:	akpm@...l.org
Cc:	linux-kernel@...r.kernel.org
Subject: [PATCH 1/5] Fix cpumask_scnprintf_len() misdesign

cpumask_scnprintf_len() takes "len" as an argument which is surprising,
If one follows call chain down it isn't length but number of bits. But
there is natural number of bits when talking about CPU masks -- NR_CPUS.
So use that.

Remove 1:1 wrapper macro while I'm at it.

Signed-off-by: Alexey Dobriyan <adobriyan@...il.com>
---

 include/linux/cpumask.h |    6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

--- a/include/linux/cpumask.h
+++ b/include/linux/cpumask.h
@@ -289,11 +289,9 @@ static inline int __cpumask_scnprintf(char *buf, int len,
 	return bitmap_scnprintf(buf, len, srcp->bits, nbits);
 }
 
-#define cpumask_scnprintf_len(len) \
-			__cpumask_scnprintf_len((len))
-static inline int __cpumask_scnprintf_len(int len)
+static inline int cpumask_scnprintf_len(void)
 {
-	return bitmap_scnprintf_len(len);
+	return bitmap_scnprintf_len(NR_CPUS);
 }
 
 #define cpumask_parse_user(ubuf, ulen, dst) \

--
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/