[PATCH 1/2] powerpc/powernv: Avoid strlen() in pnv_restart()
Thorsten Blum <[email protected]>
| Newsgroups | gmane.linux.ports.ppc.embedded,gmane.linux.kernel |
|---|---|
| Message-ID | <[email protected]> |
Check only the first byte instead of scanning the entire string with strlen(). Signed-off-by: Thorsten Blum <[email protected]> --- arch/powerpc/platforms/powernv/setup.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/platforms/powernv/setup.c b/arch/powerpc/platforms/powernv/setup.c index 06ed5e2aa265..2af92e7ba4ee 100644 --- a/arch/powerpc/platforms/powernv/setup.c +++ b/arch/powerpc/platforms/powernv/setup.c @@ -312,7 +312,7 @@ static void __noreturn pnv_restart(char *cmd) pnv_prepare_going_down(); do { - if (!cmd || !strlen(cmd)) + if (!cmd || *cmd == '\0') rc = opal_cec_reboot(); else if (strcmp(cmd, "full") == 0) rc = opal_cec_reboot2(OPAL_REBOOT_FULL_IPL, NULL);