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13 June 2022, 11:31:42 UTC
Revision 90b75db6498a19da96dac4b55c909ff3721f3045 authored by Dave Chinner on 25 September 2016, 23:57:33 UTC, committed by Linus Torvalds on 26 September 2016, 01:16:44 UTC 
fault_in_multipages_readable() throws set-but-unused error
 
When building XFS with -Werror, it now fails with:

  include/linux/pagemap.h: In function 'fault_in_multipages_readable':
  include/linux/pagemap.h:602:16: error: variable 'c' set but not used [-Werror=unused-but-set-variable]
    volatile char c;
                  ^

This is a regression caused by commit e23d4159b109 ("fix
fault_in_multipages_...() on architectures with no-op access_ok()").
Fix it by re-adding the "(void)c" trick taht was previously used to make
the compiler think the variable is used.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1 parent 38e0885
History
Tip revision: 90b75db6498a19da96dac4b55c909ff3721f3045 authored by Dave Chinner on 25 September 2016, 23:57:33 UTC
fault_in_multipages_readable() throws set-but-unused error
Tip revision: 90b75db
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