On Thu, Aug 10, 2023 at 11:15:08AM +0200, Jiri Slaby (SUSE) wrote:
> Unify the type of tty_operations::write() counters with the 'count'
> parameter. I.e. use size_t for them.
>
> This includes changing constants to UL to keep min() and avoid min_t().
>
> Signed-off-by: Jiri Slaby (SUSE) <jirislaby@xxxxxxxxxx>
> Cc: linux-staging@xxxxxxxxxxxxxxx
> ---
> drivers/staging/gdm724x/gdm_tty.c | 11 +++++------
> 1 file changed, 5 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/staging/gdm724x/gdm_tty.c b/drivers/staging/gdm724x/gdm_tty.c
> index b31f2afb0286..cbaaa8fa7474 100644
> --- a/drivers/staging/gdm724x/gdm_tty.c
> +++ b/drivers/staging/gdm724x/gdm_tty.c
> @@ -17,9 +17,9 @@
> #define GDM_TTY_MAJOR 0
> #define GDM_TTY_MINOR 32
>
> -#define WRITE_SIZE 2048
> +#define WRITE_SIZE 2048UL
>
> -#define MUX_TX_MAX_SIZE 2048
> +#define MUX_TX_MAX_SIZE 2048UL
>
> static inline bool gdm_tty_ready(struct gdm *gdm)
> {
> @@ -152,9 +152,8 @@ static void gdm_tty_send_complete(void *arg)
> static ssize_t gdm_tty_write(struct tty_struct *tty, const u8 *buf, size_t len)
> {
> struct gdm *gdm = tty->driver_data;
> - int remain = len;
> - int sent_len = 0;
> - int sending_len = 0;
> + size_t remain = len;
We later check if remain <= 0. It still works because remain could
never be negative, but now it's even less necessary to check for
negatives, I guess.
regards,
dan carpenter
