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  14. 02 Dec, 2014 1 commit
    • Dan Carpenter's avatar
      CodingStyle: add some more error handling guidelines · ea040360
      Dan Carpenter authored
      I added a paragraph on choosing label names, and updated the example
      code to use a better label name.  I also cleaned up the example code to
      more modern style by moving the allocation out of the initializer and
      changing the NULL check.
      
      Perhaps the most common type of error handling bug in the kernel is "one
      err bugs".  CodingStyle already says that we should "avoid nesting" by
      using error labels and one err style error handling tends to have
      multiple indent levels, so this was already bad style.  But I've added a
      new paragraph explaining how to avoid one err bugs by using multiple
      error labels which is, hopefully, more clear.
      Signed-off-by: default avatarDan Carpenter <dan.carpenter@oracle.com>
      Acked-by: default avatarJulia Lawall <julia.lawall@lip6.fr>
      [jc: added GFP_KERNEL to kmalloc() call]
      Signed-off-by: default avatarJonathan Corbet <corbet@lwn.net>
      ea040360
  15. 03 Nov, 2014 1 commit
  16. 26 Aug, 2014 1 commit
  17. 04 Jun, 2014 1 commit
    • Dan Streetman's avatar
      Documentation: expand/clarify debug documentation · 6e099f55
      Dan Streetman authored
      The pr_debug() and related debug print macros all differ from the normal
      pr_XXX() macros, in that the normal ones print unconditionally, while
      the debug macros are compiled out unless DEBUG is defined or
      CONFIG_DYNAMIC_DEBUG is set.  This isn't obvious, and the only way to
      find this out is either to review the actual printk.h code or to read
      CodingStyle, and the message there doesn't highlight the fact.
      
      Change Documentation/CodingStyle to clearly indicate that pr_debug() and
      related debug printing macros behave differently than all other pr_XXX()
      macros, and attempt to clarify when and where the different debug
      printing methods might be used.
      
      Add short comment to printk.h above the pr_XXX() macros indicating that
      while these macros print unconditionally, pr_debug() does not.
      Signed-off-by: default avatarDan Streetman <ddstreet@ieee.org>
      Cc: Joe Perches <joe@perches.com>
      Cc: Fabian Frederick <fabf@skynet.be>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      6e099f55
  18. 03 Jul, 2013 1 commit
  19. 11 Jan, 2013 1 commit
    • Kees Cook's avatar
      Documentation: remove depends on CONFIG_EXPERIMENTAL · 0335cb46
      Kees Cook authored
      The CONFIG_EXPERIMENTAL config item has not carried much meaning for a
      while now and is almost always enabled by default. As agreed during the
      Linux kernel summit, remove it from any "depends on" lines in Kconfigs.
      
      CC: Rob Landley <rob@landley.net>
      CC: Jiri Kosina <jkosina@suse.cz>
      CC: Masanari Iida <standby24x7@gmail.com>
      CC: Jason Wessel <jason.wessel@windriver.com>
      CC: Richard L Maliszewski <richard.l.maliszewski@intel.com>
      CC: Gang Wei <gang.wei@intel.com>
      CC: Shane Wang <shane.wang@intel.com>
      CC: Harry Wei <harryxiyou@gmail.com>
      Signed-off-by: default avatarKees Cook <keescook@chromium.org>
      Acked-by: default avatarJason Wessel <jason.wessel@windriver.com>
      0335cb46
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