tty: use pr_warn_ratelimited() for deprecated serial flags

Use pr_warn_ratelimited() when warning about deprecated serial flags
instead of open coding.

Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20210407095208.31838-5-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Johan Hovold 2021-04-07 11:52:04 +02:00 коммит произвёл Greg Kroah-Hartman
Родитель 8871de06ff
Коммит 1b7bc6b10a
1 изменённых файлов: 6 добавлений и 12 удалений

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@ -2626,9 +2626,6 @@ static int tty_tiocgicount(struct tty_struct *tty, void __user *arg)
static int tty_tiocsserial(struct tty_struct *tty, struct serial_struct __user *ss)
{
static DEFINE_RATELIMIT_STATE(depr_flags,
DEFAULT_RATELIMIT_INTERVAL,
DEFAULT_RATELIMIT_BURST);
char comm[TASK_COMM_LEN];
struct serial_struct v;
int flags;
@ -2638,9 +2635,9 @@ static int tty_tiocsserial(struct tty_struct *tty, struct serial_struct __user *
flags = v.flags & ASYNC_DEPRECATED;
if (flags && __ratelimit(&depr_flags))
pr_warn("%s: '%s' is using deprecated serial flags (with no effect): %.8x\n",
__func__, get_task_comm(comm, current), flags);
if (flags)
pr_warn_ratelimited("%s: '%s' is using deprecated serial flags (with no effect): %.8x\n",
__func__, get_task_comm(comm, current), flags);
if (!tty->ops->set_serial)
return -ENOTTY;
return tty->ops->set_serial(tty, &v);
@ -2841,9 +2838,6 @@ struct serial_struct32 {
static int compat_tty_tiocsserial(struct tty_struct *tty,
struct serial_struct32 __user *ss)
{
static DEFINE_RATELIMIT_STATE(depr_flags,
DEFAULT_RATELIMIT_INTERVAL,
DEFAULT_RATELIMIT_BURST);
char comm[TASK_COMM_LEN];
struct serial_struct32 v32;
struct serial_struct v;
@ -2860,9 +2854,9 @@ static int compat_tty_tiocsserial(struct tty_struct *tty,
flags = v.flags & ASYNC_DEPRECATED;
if (flags && __ratelimit(&depr_flags))
pr_warn("%s: '%s' is using deprecated serial flags (with no effect): %.8x\n",
__func__, get_task_comm(comm, current), flags);
if (flags)
pr_warn_ratelimited("%s: '%s' is using deprecated serial flags (with no effect): %.8x\n",
__func__, get_task_comm(comm, current), flags);
if (!tty->ops->set_serial)
return -ENOTTY;
return tty->ops->set_serial(tty, &v);