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From: kernel test robot <lkp@intel.com>
To: Florian Eckert <fe@dev.tdt.de>,
	u.kleine-koenig@pengutronix.de, gregkh@linuxfoundation.org,
	jirislaby@kernel.org, pavel@ucw.cz, lee@kernel.org
Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org,
	linux-leds@vger.kernel.org, Eckert.Florian@googlemail.com
Subject: Re: [PATCH v4 2/2] trigger: ledtrig-tty: add additional modes
Date: Tue, 21 Feb 2023 02:22:00 +0800	[thread overview]
Message-ID: <202302210235.GfyfYlvF-lkp@intel.com> (raw)
In-Reply-To: <20230220152038.3877596-3-fe@dev.tdt.de>

Hi Florian,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on tty/tty-testing]
[also build test WARNING on tty/tty-next tty/tty-linus pavel-leds/for-next staging/staging-testing staging/staging-next staging/staging-linus linus/master v6.2 next-20230220]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Florian-Eckert/tty-new-helper-function-tty_get_mget/20230220-232129
base:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git tty-testing
patch link:    https://lore.kernel.org/r/20230220152038.3877596-3-fe%40dev.tdt.de
patch subject: [PATCH v4 2/2] trigger: ledtrig-tty: add additional modes
config: ia64-allyesconfig (https://download.01.org/0day-ci/archive/20230221/202302210235.GfyfYlvF-lkp@intel.com/config)
compiler: ia64-linux-gcc (GCC) 12.1.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/intel-lab-lkp/linux/commit/8da3a8a2edcad2e4b36fce551cac1961a5cd90a6
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Florian-Eckert/tty-new-helper-function-tty_get_mget/20230220-232129
        git checkout 8da3a8a2edcad2e4b36fce551cac1961a5cd90a6
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=ia64 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=ia64 SHELL=/bin/bash drivers/leds/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202302210235.GfyfYlvF-lkp@intel.com/

All warnings (new ones prefixed by >>):

   drivers/leds/trigger/ledtrig-tty.c:15:24: error: 'TTY_LED_RNG' undeclared here (not in a function); did you mean 'TTY_LED_CNT'?
      15 |         TTY_LED_LAST = TTY_LED_RNG
         |                        ^~~~~~~~~~~
         |                        TTY_LED_CNT
   drivers/leds/trigger/ledtrig-tty.c:33:10: error: array index in initializer not of integer type
      33 |         [TTY_LED_RNG] = "RNG", // RNG Ring Indicator (RI)
         |          ^~~~~~~~~~~
   drivers/leds/trigger/ledtrig-tty.c:33:10: note: (near initialization for 'mode')
   drivers/leds/trigger/ledtrig-tty.c: In function 'ledtrig_tty_mode_show':
   drivers/leds/trigger/ledtrig-tty.c:48:34: error: '__TTY_LED_LAST' undeclared (first use in this function); did you mean 'TTY_LED_LAST'?
      48 |                 bool last = i == __TTY_LED_LAST;
         |                                  ^~~~~~~~~~~~~~
         |                                  TTY_LED_LAST
   drivers/leds/trigger/ledtrig-tty.c:48:34: note: each undeclared identifier is reported only once for each function it appears in
>> drivers/leds/trigger/ledtrig-tty.c:50:48: warning: too many arguments for format [-Wformat-extra-args]
      50 |                 len += sysfs_emit_at(buf, len, "%s%s%s",
         |                                                ^~~~~~~~
   drivers/leds/trigger/ledtrig-tty.c: In function 'tty_led_mode_store':
   drivers/leds/trigger/ledtrig-tty.c:81:38: error: '__TTY_LED_MAX' undeclared (first use in this function); did you mean 'TTY_LED_CAR'?
      81 |         enum tty_led_mode tty_mode = __TTY_LED_MAX;
         |                                      ^~~~~~~~~~~~~
         |                                      TTY_LED_CAR
   drivers/leds/trigger/ledtrig-tty.c:88:26: error: '__TTY_LED_LAST' undeclared (first use in this function); did you mean 'TTY_LED_LAST'?
      88 |         for (i = 0; i <= __TTY_LED_LAST; i++)
         |                          ^~~~~~~~~~~~~~
         |                          TTY_LED_LAST
>> drivers/leds/trigger/ledtrig-tty.c:89:17: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
      89 |                 if (strncmp(buf, mode[i], size) == 0)
         |                 ^~
   drivers/leds/trigger/ledtrig-tty.c:91:25: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
      91 |                         break;
         |                         ^~~~~
   drivers/leds/trigger/ledtrig-tty.c:91:25: error: break statement not within loop or switch
>> drivers/leds/trigger/ledtrig-tty.c:81:27: warning: variable 'tty_mode' set but not used [-Wunused-but-set-variable]
      81 |         enum tty_led_mode tty_mode = __TTY_LED_MAX;
         |                           ^~~~~~~~
   drivers/leds/trigger/ledtrig-tty.c:80:17: warning: unused variable 'ret' [-Wunused-variable]
      80 |         ssize_t ret = size;
         |                 ^~~
   drivers/leds/trigger/ledtrig-tty.c:79:34: warning: unused variable 'trigger_data' [-Wunused-variable]
      79 |         struct ledtrig_tty_data *trigger_data = led_trigger_get_drvdata(dev);
         |                                  ^~~~~~~~~~~~
   drivers/leds/trigger/ledtrig-tty.c:92:17: error: no return statement in function returning non-void [-Werror=return-type]
      92 |                 }
         |                 ^
   drivers/leds/trigger/ledtrig-tty.c: At top level:
   drivers/leds/trigger/ledtrig-tty.c:94:9: error: expected identifier or '(' before 'if'
      94 |         if (tty_mode > __TTY_LED_LAST)
         |         ^~
   drivers/leds/trigger/ledtrig-tty.c:97:20: error: expected declaration specifiers or '...' before '&' token
      97 |         mutex_lock(&trigger_data->mutex);
         |                    ^
   drivers/leds/trigger/ledtrig-tty.c:98:21: error: expected '=', ',', ';', 'asm' or '__attribute__' before '->' token
      98 |         trigger_data->mode = tty_mode;
         |                     ^~
   drivers/leds/trigger/ledtrig-tty.c:99:22: error: expected declaration specifiers or '...' before '&' token
      99 |         mutex_unlock(&trigger_data->mutex);
         |                      ^
   drivers/leds/trigger/ledtrig-tty.c:101:9: error: expected identifier or '(' before 'return'
     101 |         return ret;
         |         ^~~~~~
   drivers/leds/trigger/ledtrig-tty.c:102:1: error: expected identifier or '(' before '}' token
     102 | }
         | ^
   cc1: some warnings being treated as errors


vim +50 drivers/leds/trigger/ledtrig-tty.c

    40	
    41	static ssize_t ledtrig_tty_mode_show(char *buf, enum tty_led_mode tty_mode)
    42	{
    43		int len = 0;
    44		int i;
    45	
    46		for (i = 0; i <= TTY_LED_LAST; i++) {
    47			bool hit = tty_mode == i;
    48			bool last = i == __TTY_LED_LAST;
    49	
  > 50			len += sysfs_emit_at(buf, len, "%s%s%s",
    51					  hit ? "[" : "",
    52					  mode[i],
    53					  hit ? "]" : "",
    54					  last ? "" : " ");
    55		}
    56	
    57		len += sysfs_emit_at(buf, len, "\n");
    58	
    59		return len;
    60	}
    61	
    62	static ssize_t tty_led_mode_show(struct device *dev,
    63				 struct device_attribute *attr, char *buf)
    64	{
    65		struct ledtrig_tty_data *trigger_data = led_trigger_get_drvdata(dev);
    66		enum tty_led_mode tty_mode;
    67	
    68		mutex_lock(&trigger_data->mutex);
    69		tty_mode = trigger_data->mode;
    70		mutex_unlock(&trigger_data->mutex);
    71	
    72		return ledtrig_tty_mode_show(buf, tty_mode);
    73	}
    74	
    75	static ssize_t tty_led_mode_store(struct device *dev,
    76				  struct device_attribute *attr, const char *buf,
    77				  size_t size)
    78	{
    79		struct ledtrig_tty_data *trigger_data = led_trigger_get_drvdata(dev);
    80		ssize_t ret = size;
  > 81		enum tty_led_mode tty_mode = __TTY_LED_MAX;
    82		int i;
    83	
    84		/* Check for new line in string*/
    85		if (size > 0 && buf[size - 1] == '\n')
    86			size -= 1;
    87	
    88		for (i = 0; i <= __TTY_LED_LAST; i++)
  > 89			if (strncmp(buf, mode[i], size) == 0)
    90				tty_mode = i;
    91				break;
    92			}
    93	
    94		if (tty_mode > __TTY_LED_LAST)
    95			return -EINVAL;
    96	
    97		mutex_lock(&trigger_data->mutex);
    98		trigger_data->mode = tty_mode;
    99		mutex_unlock(&trigger_data->mutex);
   100	
   101		return ret;
   102	}
   103	static DEVICE_ATTR_RW(tty_led_mode);
   104	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests

  reply	other threads:[~2023-02-20 18:22 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-02-20 15:20 [PATCH v4 0/2] leds: ledtrig-tty: add tty_led_mode xtension Florian Eckert
2023-02-20 15:20 ` [PATCH v4 1/2] tty: new helper function tty_get_mget Florian Eckert
2023-02-20 15:20 ` [PATCH v4 2/2] trigger: ledtrig-tty: add additional modes Florian Eckert
2023-02-20 18:22   ` kernel test robot [this message]
2023-02-20 22:27   ` kernel test robot

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