On 12/23/22 03:40, yang.yang29@xxxxxxxxxx wrote:
From: Xu Panda <xu.panda@xxxxxxxxxx> The implementation of strscpy() is more robust and safer. That's now the recommended way to copy NUL-terminated strings.
Thanks for your patch, but....
Signed-off-by: Xu Panda <xu.panda@xxxxxxxxxx> Signed-off-by: Yang Yang <yang.yang29@xxxxxxx> --- drivers/parisc/pdc_stable.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) diff --git a/drivers/parisc/pdc_stable.c b/drivers/parisc/pdc_stable.c index d6af5726ddf3..403bca0021c5 100644 --- a/drivers/parisc/pdc_stable.c +++ b/drivers/parisc/pdc_stable.c @@ -274,8 +274,7 @@ pdcspath_hwpath_write(struct pdcspath_entry *entry, const char *buf, size_t coun /* We'll use a local copy of buf */ count = min_t(size_t, count, sizeof(in)-1); - strncpy(in, buf, count); - in[count] = '\0'; + strscpy(in, buf, count + 1);
could you resend it somewhat simplified, e.g. strscpy(in, buf, sizeof(in));
/* Let's clean up the target. 0xff is a blank pattern */ memset(&hwpath, 0xff, sizeof(hwpath)); @@ -388,8 +387,7 @@ pdcspath_layer_write(struct pdcspath_entry *entry, const char *buf, size_t count /* We'll use a local copy of buf */ count = min_t(size_t, count, sizeof(in)-1); - strncpy(in, buf, count); - in[count] = '\0'; + strscpy(in, buf, count + 1);
same here
/* Let's clean up the target. 0 is a blank pattern */ memset(&layers, 0, sizeof(layers)); @@ -756,8 +754,7 @@ static ssize_t pdcs_auto_write(struct kobject *kobj, /* We'll use a local copy of buf */ count = min_t(size_t, count, sizeof(in)-1); - strncpy(in, buf, count); - in[count] = '\0'; + strscpy(in, buf, count + 1);
and here
/* Current flags are stored in primary boot path entry */ pathentry = &pdcspath_entry_primary;
