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 EA77715218A; Tue, 2 Jul 2024 17:24:24 +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=1719941065; cv=none; b=hRSOn4XMGE6HTER5si50UK8grQIHea2pOEyDJ/8CnfBx+CILC9wP6uZHx32cgqrlIzps7g2uOHA5pGE8ft5xycJIMbpPuQHQijS3vUneYTXNdYDXEKuXdHDW2SUyGWXMcN4hWxyHIzIUmRE4hHYiK5fcYWZMvUcPcBxVKLVO8VI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719941065; c=relaxed/simple; bh=A9NGJ6GcVIRK2ivYGjxYOAKrk+KBjByfQSiJq2R1e3c=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=tNkGIpX4/pINMg+Fht8jzH3VxE51PLPkE/CJXbr122sg4Zl8Kg+Ds0nntxg3qnRNdqOGzXOIG0ALpbBQwFXJtfMxaHlkMFUWmAUUcJNU7YBWl30SEl6dsDpmxNAalJ+3CLl73id2fBQ2uyJXD/8qvF7sR27Sam4yvj+opXdKF50= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=LdGfYvpP; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="LdGfYvpP" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5B2FBC116B1; Tue, 2 Jul 2024 17:24:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1719941064; bh=A9NGJ6GcVIRK2ivYGjxYOAKrk+KBjByfQSiJq2R1e3c=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=LdGfYvpPDqe0HRrGGuKL7caBcQ3XEnGlTzot6MnAYWWJO2pXwC8iIDn6MQ1Qi0TUt 56tsVNRzhje/c+u+FzbF1/UyEL2WVJxkt5LQpGpycnEvi8nKdy5p68DJMHgWGvsTKd neFdbQSSMDZY57tTvRF7rZawx1HMzZTJZSeSIPkQ= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Jonas Gorski , Doug Brown Subject: [PATCH 6.6 118/163] serial: core: introduce uart_port_tx_limited_flags() Date: Tue, 2 Jul 2024 19:03:52 +0200 Message-ID: <20240702170237.521750535@linuxfoundation.org> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20240702170233.048122282@linuxfoundation.org> References: <20240702170233.048122282@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Jonas Gorski commit 9bb43b9e8d9a288a214e9b17acc9e46fda3977cf upstream. Analogue to uart_port_tx_flags() introduced in commit 3ee07964d407 ("serial: core: introduce uart_port_tx_flags()"), add a _flags variant for uart_port_tx_limited(). Fixes: d11cc8c3c4b6 ("tty: serial: use uart_port_tx_limited()") Cc: stable@vger.kernel.org Signed-off-by: Jonas Gorski Signed-off-by: Doug Brown Link: https://lore.kernel.org/r/20240606195632.173255-3-doug@schmorgal.com Signed-off-by: Greg Kroah-Hartman --- include/linux/serial_core.h | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) --- a/include/linux/serial_core.h +++ b/include/linux/serial_core.h @@ -827,6 +827,24 @@ enum UART_TX_FLAGS { }) /** + * uart_port_tx_limited_flags -- transmit helper for uart_port with count limiting with flags + * @port: uart port + * @ch: variable to store a character to be written to the HW + * @flags: %UART_TX_NOSTOP or similar + * @count: a limit of characters to send + * @tx_ready: can HW accept more data function + * @put_char: function to write a character + * @tx_done: function to call after the loop is done + * + * See uart_port_tx_limited() for more details. + */ +#define uart_port_tx_limited_flags(port, ch, flags, count, tx_ready, put_char, tx_done) ({ \ + unsigned int __count = (count); \ + __uart_port_tx(port, ch, flags, tx_ready, put_char, tx_done, __count, \ + __count--); \ +}) + +/** * uart_port_tx -- transmit helper for uart_port * @port: uart port * @ch: variable to store a character to be written to the HW