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Re: [Xen-devel] [PATCH v3 05/25] gdbstub: Use size_t for strlen() return value



On Wed, Feb 20, 2019 at 2:04 AM Philippe Mathieu-Daudé
<philmd@xxxxxxxxxx> wrote:
>
> Since strlen() returns an unsigned value, it is pointless to
> convert it to a signed one. Use size_t to hold its return value.
>
> Signed-off-by: Philippe Mathieu-Daudé <philmd@xxxxxxxxxx>

Reviewed-by: Marc-André Lureau <marcandre.lureau@xxxxxxxxxx>

(it looks like the variable is hiding len from outer scope btw)

> ---
>  gdbstub.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/gdbstub.c b/gdbstub.c
> index bc774ae992..76eca3bb7e 100644
> --- a/gdbstub.c
> +++ b/gdbstub.c
> @@ -1693,7 +1693,7 @@ static int gdb_handle_packet(GDBState *s, const char 
> *line_buf)
>          }
>  #else /* !CONFIG_USER_ONLY */
>          else if (strncmp(p, "Rcmd,", 5) == 0) {
> -            int len = strlen(p + 5);
> +            size_t len = strlen(p + 5);
>
>              if ((len % 2) != 0) {
>                  put_packet(s, "E01");
> --
> 2.20.1
>

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