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Re: [PATCH 01/10] scripts/basic/bin2c: Complete error handling in main()

From Jim Davis <jim.epost@gmail.com>
Newsgroups linux.kernel
Subject Re: [PATCH 01/10] scripts/basic/bin2c: Complete error handling in main()
Date 2016-10-29 00:40 +0200
Message-ID <sxnYB-5Xb-7@gated-at.bofh.it> (permalink)
References <sxaRH-5SO-5@gated-at.bofh.it> <sxaRI-5SO-49@gated-at.bofh.it>
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On Fri, Oct 28, 2016 at 1:31 AM, SF Markus Elfring
<elfring@users.sourceforge.net> wrote:
> From: Markus Elfring <elfring@users.sourceforge.net>
> Date: Thu, 27 Oct 2016 16:15:04 +0200
>
> Return values were not checked from five calls of the function "printf".
>
> This issue was detected also by using the Coccinelle software.
>
>
> * Add a bit of exception handling there.
>
> * Optimise this function implementation a bit.

The most interesting thing about this patch was trying to figure out
how to actually get bin2c to run at all.  Making a defconfig kernel
didn't run it.  Making a kernel with the latest Ubuntu 16.10 config
file didn't run it.  Setting CONFIG_IKCONFIG runs it (once), for the
folks who want to use scripts/extract-ikconfig.  After that, if you
dig about in the makefiles, it looks like you have to turn on the
Tomoyo LSM -- which doesn't seem to be a common occurrence -- or else
set CONFIG_KEXEC_FILE to generate the 'purgatory' thing it uses.
Again, not the most frequent of events, as far as I can tell.

Given how uncommon running bin2c seems to be, "optimizing" it may not
be a useful project.

-- 
Jim

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Thread

[PATCH 00/10] scripts/basic: Fine-tuning for seven function  implementations SF Markus Elfring <elfring@users.sourceforge.net> - 2016-10-28 10:40 +0200
  [PATCH 08/10] scripts/basic/fixdep: Complete error handling in  print_config() SF Markus Elfring <elfring@users.sourceforge.net> - 2016-10-28 10:40 +0200
  [PATCH 06/10] scripts/basic/fixdep: Complete error handling in  do_config_file() SF Markus Elfring <elfring@users.sourceforge.net> - 2016-10-28 10:40 +0200
  [PATCH 05/10] scripts/basic/fixdep: Complete error handling in  parse_dep_file() SF Markus Elfring <elfring@users.sourceforge.net> - 2016-10-28 10:40 +0200
  [PATCH 07/10] scripts/basic/fixdep: Fix error log output in  do_config_file() SF Markus Elfring <elfring@users.sourceforge.net> - 2016-10-28 10:40 +0200
  [PATCH 03/10] scripts/basic/fixdep: Use the symbol "MAP_FAILED" in  print_deps() SF Markus Elfring <elfring@users.sourceforge.net> - 2016-10-28 10:40 +0200
  [PATCH 01/10] scripts/basic/bin2c: Complete error handling in main() SF Markus Elfring <elfring@users.sourceforge.net> - 2016-10-28 10:40 +0200
    Re: [PATCH 01/10] scripts/basic/bin2c: Complete error handling in main() Jim Davis <jim.epost@gmail.com> - 2016-10-29 00:40 +0200
    Re: [PATCH 01/10] scripts/basic/bin2c: Complete error handling in main() Masahiro Yamada <yamada.masahiro@socionext.com> - 2016-11-02 16:50 +0100
      Re: scripts/basic/bin2c: Complete error handling in main() SF Markus Elfring <elfring@users.sourceforge.net> - 2016-11-02 18:50 +0100
        Re: scripts/basic/bin2c: Complete error handling in main() Masahiro Yamada <yamada.masahiro@socionext.com> - 2016-11-02 19:30 +0100
          Re: scripts/basic/bin2c: Complete error handling in main() SF Markus Elfring <elfring@users.sourceforge.net> - 2016-11-02 19:50 +0100
            Re: scripts/basic/bin2c: Complete error handling in main() Michal Marek <mmarek@suse.com> - 2016-11-03 16:50 +0100
              Re: scripts/basic/bin2c: Complete error handling in main() SF Markus Elfring <elfring@users.sourceforge.net> - 2016-11-03 20:50 +0100
                Re: scripts/basic/bin2c: Complete error handling in main() Michal Marek <mmarek@suse.com> - 2016-11-04 13:20 +0100
                Re: scripts/basic/bin2c: Complete error handling in main() SF Markus Elfring <elfring@users.sourceforge.net> - 2016-11-04 14:50 +0100
  [PATCH 09/10] scripts/basic/fixdep: Complete error handling in  print_cmdline() SF Markus Elfring <elfring@users.sourceforge.net> - 2016-10-28 10:50 +0200
    Re: [PATCH 09/10] scripts/basic/fixdep: Complete error handling in print_cmdline() Jim Davis <jim.epost@gmail.com> - 2016-10-29 01:50 +0200
      Re: scripts/basic/fixdep: Complete error handling in print_cmdline() SF Markus Elfring <elfring@users.sourceforge.net> - 2016-10-30 16:20 +0100
      Re: [PATCH 09/10] scripts/basic/fixdep: Complete error handling in print_cmdline() Masahiro Yamada <yamada.masahiro@socionext.com> - 2016-11-02 16:40 +0100
        Re: scripts/basic/fixdep: Complete error handling in print_cmdline() SF Markus Elfring <elfring@users.sourceforge.net> - 2016-11-02 18:40 +0100
          Re: scripts/basic/fixdep: Complete error handling in print_cmdline() Masahiro Yamada <yamada.masahiro@socionext.com> - 2016-11-02 19:40 +0100
            Re: scripts/basic/fixdep: Complete error handling in print_cmdline() Michal Marek <mmarek@suse.com> - 2016-11-03 17:00 +0100
  [PATCH 10/10] scripts/basic/fixdep: Combine two fprintf() calls into  one fputs() call in usage() SF Markus Elfring <elfring@users.sourceforge.net> - 2016-10-28 10:50 +0200

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