From: Ludovic Barre <ludovic.Barre@st.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Jiri Slaby <jslaby@suse.com>, Rob Herring <robh+dt@kernel.org>
Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>,
Alexandre Torgue <alexandre.torgue@st.com>,
<linux-serial@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<devicetree@vger.kernel.org>,
Ludovic Barre <ludovic.barre@st.com>
Subject: [PATCH 2/2] serial: stm32: fix name conflict with 8250
Date: Fri, 1 Dec 2017 17:36:51 +0100 [thread overview]
Message-ID: <1512146211-29086-3-git-send-email-ludovic.Barre@st.com> (raw)
In-Reply-To: <1512146211-29086-1-git-send-email-ludovic.Barre@st.com>
From: Ludovic Barre <ludovic.barre@st.com>
This patch replaces stm32 tty name ttyS by ttySTM
to avoid a name conflict when Serial: 8250/16550 driver
is activated.
sysfs: cannot create duplicate filename '/class/tty/ttyS3'
Modules linked in:
CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.14.0-12903-gb392521-dirty #1
[<c03118dc>] (unwind_backtrace) from [<c030c950>] (show_stack+0x10/0x14)
[<c030c950>] (show_stack) from [<c0d31e18>] (dump_stack+0x90/0xa4)
[<c0d31e18>] (dump_stack) from [<c03430a0>] (__warn+0xf8/0x110)
[<c03430a0>] (__warn) from [<c03430f0>] (warn_slowpath_fmt+0x38/0x48)
[<c03430f0>] (warn_slowpath_fmt) from [<c04ce574>] (sysfs_warn_dup+0x68/0x78)
[<c04ce574>] (sysfs_warn_dup) from [<c04ce824>] (sysfs_do_create_link_sd+0xb4/0xc4)
[<c04ce824>] (sysfs_do_create_link_sd) from [<c08c60ec>] (device_add+0x204/0x574)
[<c08c60ec>] (device_add) from [<c07a7ddc>] (tty_register_device_attr+0xc8/0x1bc)
[<c07a7ddc>] (tty_register_device_attr) from [<c07c6530>] (uart_add_one_port+0x22c/0x4f4)
Signed-off-by: Ludovic Barre <ludovic.barre@st.com>
---
drivers/tty/serial/stm32-usart.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/tty/serial/stm32-usart.h b/drivers/tty/serial/stm32-usart.h
index 8a5ff54..2294d0f 100644
--- a/drivers/tty/serial/stm32-usart.h
+++ b/drivers/tty/serial/stm32-usart.h
@@ -236,7 +236,7 @@ struct stm32_usart_info stm32h7_info = {
#define USART_ICR_CMCF BIT(17) /* F7 */
#define USART_ICR_WUCF BIT(20) /* H7 */
-#define STM32_SERIAL_NAME "ttyS"
+#define STM32_SERIAL_NAME "ttySTM"
#define STM32_MAX_PORTS 8
#define RX_BUF_L 200 /* dma rx buffer length */
--
2.7.4
prev parent reply other threads:[~2017-12-01 16:37 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-01 16:36 [PATCH 0/2] serial: stm32: fix name conflict Ludovic Barre
2017-12-01 16:36 ` [PATCH 1/2] serial: stm32: add default console Ludovic Barre
2017-12-15 19:25 ` Greg Kroah-Hartman
2017-12-18 8:31 ` Ludovic BARRE
2017-12-01 16:36 ` Ludovic Barre [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1512146211-29086-3-git-send-email-ludovic.Barre@st.com \
--to=ludovic.barre@st.com \
--cc=alexandre.torgue@st.com \
--cc=devicetree@vger.kernel.org \
--cc=gregkh@linuxfoundation.org \
--cc=jslaby@suse.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-serial@vger.kernel.org \
--cc=mcoquelin.stm32@gmail.com \
--cc=robh+dt@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).