|author||Alexander Holler <email@example.com>||2011-01-09 12:19:44 +0000|
|committer||Albert Aribaud <firstname.lastname@example.org>||2011-02-02 00:54:44 +0100|
ARM: Avoid compiler optimization for readb, writeb and friends.
gcc 4.5.1 seems to ignore (at least some) volatile definitions, avoid that as done in the kernel. Reading C99 6.7.3 8 and the comment 114) there, I think it is a bug of that gcc version to ignore the volatile type qualifier used e.g. in __arch_getl(). Anyway, using a definition as in the kernel headers avoids such optimizations when gcc 4.5.1 is used. Maybe the headers as used in the current linux-kernel should be used, but to avoid large changes, I've just added a small change to the current headers. Signed-off-by: Alexander Holler <email@example.com> Signed-off-by: Dirk Behme <firstname.lastname@example.org> Signed-off-by: Wolfgang Denk <email@example.com> Cc: Alessandro Rubini <firstname.lastname@example.org> Tested-by: Thomas Weber <email@example.com> Acked-by: Alexander Holler <firstname.lastname@example.org> Tested-by: Alexander Holler <email@example.com>
Diffstat (limited to 'arch/arm/cpu/pxa')
0 files changed, 0 insertions, 0 deletions