From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4948133689E; Fri, 6 Mar 2026 06:32:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772778762; cv=none; b=GRUDH/uedwBEsXD4DYyXkVC/nTbGokkk3lDUirZZ2xHBjFnqk1QP4/2uJqp1SbAYyJ8yOekFRji5L8zANAdQkaBh9TQFfI6LMFKHUTx2phLoxTMr/0qR9M8b91prBWOeopii7BiP0s59xljB52zhD3BBbWVI8+zuJHfIz1F0Ayg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772778762; c=relaxed/simple; bh=PyHSu/XLNUufj+SM5UQKqUVMfMk2xCDzXveP9Z2/oF8=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=Hh345lU++DeiSJx4xLEHaqB89CfaEj1nW1OAHBRglcOKtOqemI57sl6tJJq9kclsZW/+k3NCeKyktG4wYz+bkRH5sKOL+oTGZ90sNnSkavKaJ/+tTqfByLjQzTOkfwUmCjJICsTf6N+pa4cBSGHLtk0EbF5LzeRYVXazX2zfMY0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=rDDdN0r4; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="rDDdN0r4" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 72381C4CEF7; Fri, 6 Mar 2026 06:32:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772778761; bh=PyHSu/XLNUufj+SM5UQKqUVMfMk2xCDzXveP9Z2/oF8=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=rDDdN0r4tB2FHk1XOOceTNdUeIu5FO+Djh7EqhOtWgpVWRf+FrYEJ1sOUg/gSx2nA 7rYCov32CY/sjiTwSV4zDzcwmsBDJIlA33gwEFACTZsfMJ2X0ps/CvVJiBvCmPW+aI 6zn1UFVfXuJmocKOGoV0D7ZZ22InVdTWgXUUUwDmlINu7cR/US5RuEnxt1bBczltnm V0B4mSrPQ+3ZPkmaEUK7O7d1vxe+97oQe8qxfmD9WqEuAennkjZ2mUtkpKgamAwamv 8d1da0OjXE9TtB7sMqGtlF8SLGcu/69EhkEvNHDv4co9cwPPdtPpcFdRyATgSffzZy tXRJrl5EtmrIA== Message-ID: <51fed793-869b-4a5b-b90f-2ba80c13d773@kernel.org> Date: Fri, 6 Mar 2026 07:32:37 +0100 Precedence: bulk X-Mailing-List: linux-serial@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [RFC PATCH 3/7] drivers/tty/serial/serial_core: ratelimit uart_wait_until_sent To: Jim Cromie , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, intel-gvt-dev@lists.freedesktop.org, intel-gfx@lists.freedesktop.org Cc: Greg Kroah-Hartman , Petr Mladek , =?UTF-8?Q?Ilpo_J=C3=A4rvinen?= , "Dr. David Alan Gilbert" , Joseph Tilahun , linux-serial@vger.kernel.org References: <20260306015022.1940986-1-jim.cromie@gmail.com> <20260306015022.1940986-4-jim.cromie@gmail.com> Content-Language: en-US From: Jiri Slaby Autocrypt: addr=jirislaby@kernel.org; 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charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 06. 03. 26, 2:50, Jim Cromie wrote: > Ratelimiting these pr_debug()s can reduce the console flood during > bulk dynamic-debug activation, in environments where a serial console > is used. > > Signed-off-by: Jim Cromie > --- > drivers/tty/serial/serial_core.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c > index 487756947a96..6db465619c70 100644 > --- a/drivers/tty/serial/serial_core.c > +++ b/drivers/tty/serial/serial_core.c > @@ -1790,8 +1790,8 @@ static void uart_wait_until_sent(struct tty_struct *tty, int timeout) > > expire = jiffies + timeout; > > - pr_debug("uart_wait_until_sent(%u), jiffies=%lu, expire=%lu...\n", > - port->line, jiffies, expire); > + pr_debug_ratelimited("waiting on (%u) jiffies=%lu, expire=%lu...\n", > + port->line, jiffies, expire); The changed message does not make any sense. -- js suse labs