lkml.org 
[lkml]   [2020]   [Jul]   [8]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [PATCH v4 4/4] printk: use the lockless ringbuffer
    Hi John,

    Thank you for the patch! Perhaps something to improve:

    [auto build test WARNING on linux/master]
    [also build test WARNING on linus/master v5.8-rc4 next-20200708]
    [cannot apply to pmladek/for-next]
    [If your patch is applied to the wrong git tree, kindly drop us a note.
    And when submitting patch, we suggest to use as documented in
    https://git-scm.com/docs/git-format-patch]

    url: https://github.com/0day-ci/linux/commits/John-Ogness/printk-replace-ringbuffer/20200707-230114
    base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 9ebcfadb0610322ac537dd7aa5d9cbc2b2894c68
    config: parisc-randconfig-r004-20200709 (attached as .config)
    compiler: hppa-linux-gcc (GCC) 9.3.0
    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
    # save the attached .config to linux build tree
    COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=parisc

    If you fix the issue, kindly add following tag as appropriate
    Reported-by: kernel test robot <lkp@intel.com>

    All warnings (new ones prefixed by >>):

    In file included from include/linux/printk.h:7,
    from include/linux/kernel.h:15,
    from kernel/printk/printk.c:22:
    kernel/printk/printk.c: In function 'setup_log_buf':
    >> include/linux/kern_levels.h:5:18: warning: format '%lu' expects argument of type 'long unsigned int', but argument 2 has type 'size_t' {aka 'unsigned int'} [-Wformat=]
    5 | #define KERN_SOH "\001" /* ASCII Start Of Header */
    | ^~~~~~
    include/linux/kern_levels.h:11:18: note: in expansion of macro 'KERN_SOH'
    11 | #define KERN_ERR KERN_SOH "3" /* error conditions */
    | ^~~~~~~~
    include/linux/printk.h:338:9: note: in expansion of macro 'KERN_ERR'
    338 | printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
    | ^~~~~~~~
    kernel/printk/printk.c:1145:3: note: in expansion of macro 'pr_err'
    1145 | pr_err("log_buf_len: %lu desc bytes not available\n",
    | ^~~~~~

    vim +5 include/linux/kern_levels.h

    314ba3520e513a7 Joe Perches 2012-07-30 4
    04d2c8c83d0e3ac Joe Perches 2012-07-30 @5 #define KERN_SOH "\001" /* ASCII Start Of Header */
    04d2c8c83d0e3ac Joe Perches 2012-07-30 6 #define KERN_SOH_ASCII '\001'
    04d2c8c83d0e3ac Joe Perches 2012-07-30 7

    ---
    0-DAY CI Kernel Test Service, Intel Corporation
    https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
    [unhandled content-type:application/gzip]
    \
     
     \ /
      Last update: 2020-07-08 21:42    [W:4.593 / U:0.348 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site