Re: [PATCH v10 04/27] clocksource: Add a new timer-ingenic driver

From: kbuild test robot <lkp@intel.com>
To: Paul Cercueil <paul@crapouillou.net>
Cc: kbuild-all@01.org, "Thierry Reding" <thierry.reding@gmail.com>,
	"Daniel Lezcano" <daniel.lezcano@linaro.org>,
	"Thomas Gleixner" <tglx@linutronix.de>,
	"Ralf Baechle" <ralf@linux-mips.org>,
	"Paul Burton" <paul.burton@mips.com>,
	"James Hogan" <jhogan@kernel.org>,
	"Jonathan Corbet" <corbet@lwn.net>,
	"Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>,
	"Mathieu Malaterre" <malat@debian.org>,
	od@zcrc.me, linux-pwm@vger.kernel.org,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-watchdog@vger.kernel.org, linux-mips@vger.kernel.org,
	linux-doc@vger.kernel.org, linux-clk@vger.kernel.org,
	"Paul Cercueil" <paul@crapouillou.net>
Subject: Re: [PATCH v10 04/27] clocksource: Add a new timer-ingenic driver
Date: Tue, 5 Mar 2019 11:15:30 +0800	[thread overview]
Message-ID: <201903051135.9dxyDNXx%fengguang.wu@intel.com> (raw)
In-Reply-To: <20190302233413.14813-5-paul@crapouillou.net>

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Hi Paul,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on linus/master]
[also build test WARNING on v5.0]
[cannot apply to next-20190304]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Paul-Cercueil/Ingenic-TCU-patchset/20190305-054726
config: x86_64-allmodconfig (attached as .config)
compiler: gcc-8 (Debian 8.2.0-21) 8.2.0
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All warnings (new ones prefixed by >>):

   In file included from include/linux/printk.h:7,
                    from include/linux/kernel.h:14,
                    from include/linux/clk.h:16,
                    from drivers/clocksource/ingenic-timer.c:8:
   drivers/clocksource/ingenic-timer.c: In function 'ingenic_tcu_clk_init':
>> include/linux/kern_levels.h:5:18: warning: format '%i' expects argument of type 'int', but argument 2 has type 'size_t' {aka 'long unsigned int'} [-Wformat=]
    #define KERN_SOH "\001"  /* ASCII Start Of Header */
                     ^~~~~~
   include/linux/kern_levels.h:10:19: note: in expansion of macro 'KERN_SOH'
    #define KERN_CRIT KERN_SOH "2" /* critical conditions */
                      ^~~~~~~~
   include/linux/printk.h:301:9: note: in expansion of macro 'KERN_CRIT'
     printk(KERN_CRIT pr_fmt(fmt), ##__VA_ARGS__)
            ^~~~~~~~~
   drivers/clocksource/ingenic-timer.c:436:4: note: in expansion of macro 'pr_crit'
       pr_crit("ingenic-timer: cannot register clock %i\n", i);
       ^~~~~~~
   drivers/clocksource/ingenic-timer.c:436:51: note: format string is defined here
       pr_crit("ingenic-timer: cannot register clock %i\n", i);
                                                     ~^
                                                     %li
--
   In file included from include/linux/printk.h:7,
                    from include/linux/kernel.h:14,
                    from include/linux/clk.h:16,
                    from drivers//clocksource/ingenic-timer.c:8:
   drivers//clocksource/ingenic-timer.c: In function 'ingenic_tcu_clk_init':
>> include/linux/kern_levels.h:5:18: warning: format '%i' expects argument of type 'int', but argument 2 has type 'size_t' {aka 'long unsigned int'} [-Wformat=]
    #define KERN_SOH "\001"  /* ASCII Start Of Header */
                     ^~~~~~
   include/linux/kern_levels.h:10:19: note: in expansion of macro 'KERN_SOH'
    #define KERN_CRIT KERN_SOH "2" /* critical conditions */
                      ^~~~~~~~
   include/linux/printk.h:301:9: note: in expansion of macro 'KERN_CRIT'
     printk(KERN_CRIT pr_fmt(fmt), ##__VA_ARGS__)
            ^~~~~~~~~
   drivers//clocksource/ingenic-timer.c:436:4: note: in expansion of macro 'pr_crit'
       pr_crit("ingenic-timer: cannot register clock %i\n", i);
       ^~~~~~~
   drivers//clocksource/ingenic-timer.c:436:51: note: format string is defined here
       pr_crit("ingenic-timer: cannot register clock %i\n", i);
                                                     ~^
                                                     %li

vim +5 include/linux/kern_levels.h

314ba352 Joe Perches 2012-07-30  4  
04d2c8c8 Joe Perches 2012-07-30 @5  #define KERN_SOH	"\001"		/* ASCII Start Of Header */
04d2c8c8 Joe Perches 2012-07-30  6  #define KERN_SOH_ASCII	'\001'
04d2c8c8 Joe Perches 2012-07-30  7  

:::::: The code at line 5 was first introduced by commit
:::::: 04d2c8c83d0e3ac5f78aeede51babb3236200112 printk: convert the format for KERN_<LEVEL> to a 2 byte pattern

:::::: TO: Joe Perches <joe@perches.com>
:::::: CC: Linus Torvalds <torvalds@linux-foundation.org>

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