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Message-ID: <202312062240.v39k99mQ-lkp@intel.com>
Date: Wed, 6 Dec 2023 22:22:06 +0800
From: kernel test robot <lkp@...el.com>
To: Hugo Villeneuve <hugo@...ovil.com>, gregkh@...uxfoundation.org,
jirislaby@...nel.org, hvilleneuve@...onoff.com
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
linux-serial@...r.kernel.org, hugo@...ovil.com
Subject: Re: [PATCH 7/7] serial: max310x: use separate regmap name for each
port
Hi Hugo,
kernel test robot noticed the following build warnings:
[auto build test WARNING on d804987153e7bedf503f8e4ba649afe52cfd7f6d]
url: https://github.com/intel-lab-lkp/linux/commits/Hugo-Villeneuve/serial-sc16is7xx-fix-snprintf-format-specifier-in-sc16is7xx_regmap_name/20231201-031413
base: d804987153e7bedf503f8e4ba649afe52cfd7f6d
patch link: https://lore.kernel.org/r/20231130191050.3165862-8-hugo%40hugovil.com
patch subject: [PATCH 7/7] serial: max310x: use separate regmap name for each port
config: arm-randconfig-r081-20231201 (https://download.01.org/0day-ci/archive/20231206/202312062240.v39k99mQ-lkp@intel.com/config)
compiler: arm-linux-gnueabi-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231206/202312062240.v39k99mQ-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202312062240.v39k99mQ-lkp@intel.com/
All warnings (new ones prefixed by >>):
In function 'max310x_regmap_name',
inlined from 'max310x_i2c_probe' at drivers/tty/serial/max310x.c:1641:21:
>> drivers/tty/serial/max310x.c:30:41: warning: '%u' directive output may be truncated writing between 1 and 10 bytes into a region of size 2 [-Wformat-truncation=]
30 | #define MAX310X_PORT_NAME_SUFFIX "port"
| ^~~~~~
drivers/tty/serial/max310x.c:1494:36: note: in expansion of macro 'MAX310X_PORT_NAME_SUFFIX'
1494 | snprintf(buf, sizeof(buf), MAX310X_PORT_NAME_SUFFIX "%u", port_id);
| ^~~~~~~~~~~~~~~~~~~~~~~~
drivers/tty/serial/max310x.c: In function 'max310x_i2c_probe':
drivers/tty/serial/max310x.c:1494:62: note: format string is defined here
1494 | snprintf(buf, sizeof(buf), MAX310X_PORT_NAME_SUFFIX "%u", port_id);
| ^~
In function 'max310x_regmap_name',
inlined from 'max310x_i2c_probe' at drivers/tty/serial/max310x.c:1641:21:
drivers/tty/serial/max310x.c:30:41: note: directive argument in the range [1, 4294967294]
30 | #define MAX310X_PORT_NAME_SUFFIX "port"
| ^~~~~~
drivers/tty/serial/max310x.c:1494:36: note: in expansion of macro 'MAX310X_PORT_NAME_SUFFIX'
1494 | snprintf(buf, sizeof(buf), MAX310X_PORT_NAME_SUFFIX "%u", port_id);
| ^~~~~~~~~~~~~~~~~~~~~~~~
drivers/tty/serial/max310x.c:1494:9: note: 'snprintf' output between 6 and 15 bytes into a destination of size 6
1494 | snprintf(buf, sizeof(buf), MAX310X_PORT_NAME_SUFFIX "%u", port_id);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In function 'max310x_regmap_name',
inlined from 'max310x_spi_probe' at drivers/tty/serial/max310x.c:1535:17:
>> drivers/tty/serial/max310x.c:30:41: warning: '%u' directive output may be truncated writing between 1 and 10 bytes into a region of size 2 [-Wformat-truncation=]
30 | #define MAX310X_PORT_NAME_SUFFIX "port"
| ^~~~~~
drivers/tty/serial/max310x.c:1494:36: note: in expansion of macro 'MAX310X_PORT_NAME_SUFFIX'
1494 | snprintf(buf, sizeof(buf), MAX310X_PORT_NAME_SUFFIX "%u", port_id);
| ^~~~~~~~~~~~~~~~~~~~~~~~
drivers/tty/serial/max310x.c: In function 'max310x_spi_probe':
drivers/tty/serial/max310x.c:1494:62: note: format string is defined here
1494 | snprintf(buf, sizeof(buf), MAX310X_PORT_NAME_SUFFIX "%u", port_id);
| ^~
In function 'max310x_regmap_name',
inlined from 'max310x_spi_probe' at drivers/tty/serial/max310x.c:1535:17:
drivers/tty/serial/max310x.c:30:41: note: directive argument in the range [0, 4294967294]
30 | #define MAX310X_PORT_NAME_SUFFIX "port"
| ^~~~~~
drivers/tty/serial/max310x.c:1494:36: note: in expansion of macro 'MAX310X_PORT_NAME_SUFFIX'
1494 | snprintf(buf, sizeof(buf), MAX310X_PORT_NAME_SUFFIX "%u", port_id);
| ^~~~~~~~~~~~~~~~~~~~~~~~
drivers/tty/serial/max310x.c:1494:9: note: 'snprintf' output between 6 and 15 bytes into a destination of size 6
1494 | snprintf(buf, sizeof(buf), MAX310X_PORT_NAME_SUFFIX "%u", port_id);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
vim +30 drivers/tty/serial/max310x.c
28
29 #define MAX310X_NAME "max310x"
> 30 #define MAX310X_PORT_NAME_SUFFIX "port"
31 #define MAX310X_MAJOR 204
32 #define MAX310X_MINOR 209
33 #define MAX310X_UART_NRMAX 16
34 #define MAX310X_MAX_PORTS 4 /* Maximum number of UART ports per IC. */
35
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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