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