On Fri, Jul 13, 2018 at 03:25:58AM +0200, Dominique Martinet wrote:
> Generated by scripts/coccinelle/misc/strncpy_truncation.cocci
> 
> Signed-off-by: Dominique Martinet <asmad...@codewreck.org>

It would have been good for you to mention in the changelog how
you reviewed your change to verify that the extra zero padding
from strncpy() isn't required.

However... I have taken a look and can't see any problem so:

Reviewed-by: Daniel Thompson <daniel.thomp...@linaro.org>


> ---
> 
> Please see https://marc.info/?l=linux-kernel&m=153144450722324&w=2 (the
> first patch of the serie) for the motivation behind this patch
> 
>  kernel/debug/kdb/kdb_support.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/kernel/debug/kdb/kdb_support.c b/kernel/debug/kdb/kdb_support.c
> index 990b3cc526c8..1f6a4b6bde0b 100644
> --- a/kernel/debug/kdb/kdb_support.c
> +++ b/kernel/debug/kdb/kdb_support.c
> @@ -119,8 +119,7 @@ int kdbnearsym(unsigned long addr, kdb_symtab_t *symtab)
>                * What was Rusty smoking when he wrote that code?
>                */
>               if (symtab->sym_name != knt1) {
> -                     strncpy(knt1, symtab->sym_name, knt1_size);
> -                     knt1[knt1_size-1] = '\0';
> +                     strlcpy(knt1, symtab->sym_name, knt1_size);
>               }
>               for (i = 0; i < ARRAY_SIZE(kdb_name_table); ++i) {
>                       if (kdb_name_table[i] &&
> -- 
> 2.17.1
> 

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