mirrors/linux
2
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-08-30 14:33:24 -04:00
Code Issues Packages Projects Releases Wiki Activity

powerpc/dt_cpu_ftrs: Avoid separate strlen() in scan_callback()

Browse Source 
Check only the first byte instead of scanning the entire string with
strlen().  While at it, keep dt_cpu_name static, but move it into
dt_cpu_ftrs_scan_callback(), where it is assigned.

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Link: https://patch.msgid.link/20260701114428.818748-3-thorsten.blum@linux.dev
This commit is contained in:
Thorsten Blum
2026-07-01 13:44:28 +02:00
committed by Madhavan Srinivasan
parent 351496d6ae
commit b6cfbfd6b2
1 changed files with 3 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
arch/powerpc/kernel/dt_cpu_ftrs.c
View File

@@ -90,8 +90,6 @@ static void __restore_cpu_cpufeatures(void)
init_pmu_registers();
}
static char dt_cpu_name[64];
static struct cpu_spec __initdata base_cpu_spec = {
.cpu_name = NULL,
.cpu_features = CPU_FTRS_DT_CPU_BASE,
@@ -1078,6 +1076,7 @@ static int __init count_cpufeatures_subnodes(unsigned long node,
static int __init dt_cpu_ftrs_scan_callback(unsigned long node, const char
*uname, int depth, void *data)
{
static char dt_cpu_name[64];
const __be32 *prop;
int count, i;
u32 isa;
@@ -1115,8 +1114,8 @@ static int __init dt_cpu_ftrs_scan_callback(unsigned long node, const char
}
prop = of_get_flat_dt_prop(node, "display-name", NULL);
if (prop && strlen((char *)prop) != 0) {
strscpy(dt_cpu_name, (char *)prop, sizeof(dt_cpu_name));
if (prop && *(char *)prop != 0) {
strscpy(dt_cpu_name, (char *)prop);
cur_cpu_spec->cpu_name = dt_cpu_name;
}