sparc: Fix -Wstringop-overflow warning
authorOrlando Arias <oarias@knights.ucf.edu>
Tue, 16 May 2017 19:34:00 +0000 (15:34 -0400)
committerDavid S. Miller <davem@davemloft.net>
Wed, 17 May 2017 19:07:46 +0000 (12:07 -0700)
commitdeba804c90642c8ed0f15ac1083663976d578f54
tree90881a5181651c09e8fd8ceb9d62eb65bf556008
parentb6c41cb050d5debc7e4eaa0a81cbdbad72588891
sparc: Fix -Wstringop-overflow warning

Greetings,

GCC 7 introduced the -Wstringop-overflow flag to detect buffer overflows
in calls to string handling functions [1][2]. Due to the way
``empty_zero_page'' is declared in arch/sparc/include/setup.h, this
causes a warning to trigger at compile time in the function mem_init(),
which is subsequently converted to an error. The ensuing patch fixes
this issue and aligns the declaration of empty_zero_page to that of
other architectures. Thank you.

Cheers,
Orlando.

[1] https://gcc.gnu.org/ml/gcc-patches/2016-10/msg02308.html
[2] https://gcc.gnu.org/gcc-7/changes.html

Signed-off-by: Orlando Arias <oarias@knights.ucf.edu>
--------------------------------------------------------------------------------
Signed-off-by: David S. Miller <davem@davemloft.net>
arch/sparc/include/asm/pgtable_32.h
arch/sparc/include/asm/setup.h
arch/sparc/mm/init_32.c