github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-24 15:12:13 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

x86/mtrr: Remove unnecessary strlen() in mtrr_write()

Browse Source 
The local variable length already holds the string length after calling
strncpy_from_user(). Using another local variable linlen and calling
strlen() is therefore unnecessary and can be removed. Remove linlen
and strlen() and use length instead.

No change in functionality intended.

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20250225131621.329699-2-thorsten.blum@linux.dev
This commit is contained in:
Thorsten Blum 2025-02-25 14:16:19 +01:00 committed by Ingo Molnar
parent 782b819827
commit 8e8f030649
1 changed files with 2 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
arch/x86/kernel/cpu/mtrr/if.c
View File

@ -99,7 +99,6 @@ mtrr_write(struct file *file, const char __user *buf, size_t len, loff_t * ppos)
char *ptr;
char line[LINE_SIZE];
int length;
size_t linelen;
memset(line, 0, LINE_SIZE);
@ -108,9 +107,8 @@ mtrr_write(struct file *file, const char __user *buf, size_t len, loff_t * ppos)
if (length < 0)
return length;
linelen = strlen(line);
ptr = line + linelen - 1;
if (linelen && *ptr == '\n')
ptr = line + length - 1;
if (length && *ptr == '\n')
*ptr = '\0';
if (!strncmp(line, "disable=", 8)) {