...both give the number of chars in the string
without the '\0', as strncmp() wants,
but sizeof() is compile-time.

Reported-by: Alan Stern <st...@rowland.harvard.edu>
Cc: Pavel Vasilyev <pa...@pavlinux.ru>
Signed-off-by: Len Brown <len.br...@intel.com>
---
 drivers/acpi/sysfs.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/acpi/sysfs.c b/drivers/acpi/sysfs.c
index 240a244..7c3f98b 100644
--- a/drivers/acpi/sysfs.c
+++ b/drivers/acpi/sysfs.c
@@ -173,7 +173,7 @@ static int param_set_trace_state(const char *val,
struct kernel_param *kp)
 {
        int result = 0;

-       if (!strncmp(val, "enable", strlen("enable"))) {
+       if (!strncmp(val, "enable", sizeof("enable") - 1)) {
                result = acpi_debug_trace(trace_method_name, trace_debug_level,
                                          trace_debug_layer, 0);
                if (result)
@@ -181,7 +181,7 @@ static int param_set_trace_state(const char *val,
struct kernel_param *kp)
                goto exit;
        }

-       if (!strncmp(val, "disable", strlen("disable"))) {
+       if (!strncmp(val, "disable", sizeof("disable") - 1)) {
                int name = 0;
                result = acpi_debug_trace((char *)&name, trace_debug_level,
                                          trace_debug_layer, 0);
-- 
1.7.12.rc0

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