qiurui
/
Centos-kernel-stream-9
mirror of https://gitlab.com/redhat/centos-stream/src/kernel/centos-stream-9.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

jiffies: Cast to unsigned long in secs_to_jiffies() conversion 

JIRA: https://issues.redhat.com/browse/RHEL-91108

commit bb2784d9ab49587ba4fbff37a319fff2924db289
Author: Easwar Hariharan <eahariha@linux.microsoft.com>
Date:   Thu Jan 30 19:26:58 2025 +0000

    jiffies: Cast to unsigned long in secs_to_jiffies() conversion

    While converting users of msecs_to_jiffies(), lkp reported that some range
    checks would always be true because of the mismatch between the implied int
    value of secs_to_jiffies() vs the unsigned long return value of the
    msecs_to_jiffies() calls it was replacing.

    Fix this by casting the secs_to_jiffies() input value to unsigned long.

    Fixes: b35108a51cf7ba ("jiffies: Define secs_to_jiffies()")
    Reported-by: kernel test robot <lkp@intel.com>
    Signed-off-by: Easwar Hariharan <eahariha@linux.microsoft.com>
    Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
    Cc: stable@vger.kernel.org
    Link: https://lore.kernel.org/all/20250130192701.99626-1-eahariha@linux.microsoft.com
    Closes: https://lore.kernel.org/oe-kbuild-all/202501301334.NB6NszQR-lkp@intel.com/

Signed-off-by: CKI Backport Bot <cki-ci-bot+cki-gitlab-backport-bot@redhat.com>
This commit is contained in:
CKI Backport Bot 2025-05-13 12:49:51 +00:00
parent 929d636678
commit 2ece6620c0
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
include/linux/jiffies.h
View File

@ -382,7 +382,7 @@ static __always_inline unsigned long msecs_to_jiffies(const unsigned int m)
* *
* Return: jiffies value * Return: jiffies value
*/ */
#define secs_to_jiffies(_secs) ((_secs) * HZ) #define secs_to_jiffies(_secs) (unsigned long)((_secs) * HZ)
extern unsigned long __usecs_to_jiffies(const unsigned int u); extern unsigned long __usecs_to_jiffies(const unsigned int u);
#if !(USEC_PER_SEC % HZ) #if !(USEC_PER_SEC % HZ)