Re: [PATCH] sysctl: Handle error writing UINT_MAX to u32 fields

[kbuild test robot <lkp@intel.com>]

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Hi,

[auto build test WARNING on v4.7-rc3]
[also build test WARNING on next-20160617]
[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/Subash-Abhinov-Kasiviswanathan/sysctl-Handle-error-writing-UINT_MAX-to-u32-fields/20160618-091421
reproduce: make htmldocs

All warnings (new ones prefixed by >>):

>> kernel/sysctl.c:2268: warning: No description found for parameter 'table'
>> kernel/sysctl.c:2268: warning: No description found for parameter 'write'
>> kernel/sysctl.c:2268: warning: No description found for parameter 'buffer'
>> kernel/sysctl.c:2268: warning: No description found for parameter 'lenp'
>> kernel/sysctl.c:2268: warning: No description found for parameter 'ppos'
   include/linux/jbd2.h:442: warning: No description found for parameter 'i_transaction'
   include/linux/jbd2.h:442: warning: No description found for parameter 'i_next_transaction'
   include/linux/jbd2.h:442: warning: No description found for parameter 'i_list'
   include/linux/jbd2.h:442: warning: No description found for parameter 'i_vfs_inode'
   include/linux/jbd2.h:442: warning: No description found for parameter 'i_flags'
   include/linux/jbd2.h:498: warning: No description found for parameter 'h_rsv_handle'
   include/linux/jbd2.h:498: warning: No description found for parameter 'h_reserved'
   include/linux/jbd2.h:498: warning: No description found for parameter 'h_type'
   include/linux/jbd2.h:498: warning: No description found for parameter 'h_line_no'
   include/linux/jbd2.h:498: warning: No description found for parameter 'h_start_jiffies'
   include/linux/jbd2.h:498: warning: No description found for parameter 'h_requested_credits'
   include/linux/jbd2.h:498: warning: No description found for parameter 'h_lockdep_map'
   include/linux/jbd2.h:1038: warning: No description found for parameter 'j_chkpt_bhs[JBD2_NR_BATCH]'
   include/linux/jbd2.h:1038: warning: No description found for parameter 'j_devname[BDEVNAME_SIZE+24]'
   include/linux/jbd2.h:1038: warning: No description found for parameter 'j_average_commit_time'
   include/linux/jbd2.h:1038: warning: No description found for parameter 'j_min_batch_time'
   include/linux/jbd2.h:1038: warning: No description found for parameter 'j_max_batch_time'
   include/linux/jbd2.h:1038: warning: No description found for parameter 'j_commit_callback'
   include/linux/jbd2.h:1038: warning: No description found for parameter 'j_failed_commit'
   include/linux/jbd2.h:1038: warning: No description found for parameter 'j_chksum_driver'
   include/linux/jbd2.h:1038: warning: No description found for parameter 'j_csum_seed'
   fs/jbd2/transaction.c:429: warning: No description found for parameter 'rsv_blocks'
   fs/jbd2/transaction.c:429: warning: No description found for parameter 'gfp_mask'
   fs/jbd2/transaction.c:429: warning: No description found for parameter 'type'
   fs/jbd2/transaction.c:429: warning: No description found for parameter 'line_no'
   fs/jbd2/transaction.c:505: warning: No description found for parameter 'type'
   fs/jbd2/transaction.c:505: warning: No description found for parameter 'line_no'
   fs/jbd2/transaction.c:635: warning: No description found for parameter 'gfp_mask'

vim +/table +2268 kernel/sysctl.c

  2252	 * values from/to the user buffer, treated as an ASCII string. 
  2253	 *
  2254	 * Returns 0 on success.
  2255	 */
  2256	int proc_dointvec(struct ctl_table *table, int write,
  2257			     void __user *buffer, size_t *lenp, loff_t *ppos)
  2258	{
  2259	    return do_proc_dointvec(table,write,buffer,lenp,ppos,
  2260			    	    NULL,NULL);
  2261	}
  2262	
  2263	/**
  2264	 * proc_douintvec - read a vector of unsigned integers
  2265	 */
  2266	int proc_douintvec(struct ctl_table *table, int write,
  2267			     void __user *buffer, size_t *lenp, loff_t *ppos)
> 2268	{
  2269	    return do_proc_dointvec(table,write,buffer,lenp,ppos,
  2270				    do_proc_douintvec_conv, NULL);
  2271	}
  2272	
  2273	/*
  2274	 * Taint values can only be increased
  2275	 * This means we can safely use a temporary.
  2276	 */

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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