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powerpc/powernv: Avoid strlen() in pnv_restart()

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Check only the first byte instead of scanning the entire string with
strlen().

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Reviewed-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org>
Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Link: https://patch.msgid.link/20260721155346.121975-3-thorsten.blum@linux.dev
This commit is contained in:
Thorsten Blum 2026-07-21 17:53:45 +02:00 committed by Madhavan Srinivasan
parent a2144b13a6
commit 86bb4d74da
1 changed files with 1 additions and 1 deletions
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2
arch/powerpc/platforms/powernv/setup.c
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@ -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);