From: Riku Voipio <riku.voi...@linaro.org> This series is a cleanup and gcc-4.9 buildfix:
linux-user/syscall.c: In function ‘host_to_target_stat64’: linux-user/qemu.h:301:19: error: right-hand operand of comma expression has no effect [-Werror=unused-value] ((hptr), (x)), 0) removing the unused 0 moves the bar: linux-user/main.c: In function ‘arm_kernel_cmpxchg64_helper’: linux-user/qemu.h:330:15: error: void value not ignored as it ought to be __ret = __put_user((x), __hptr); \ And after fixing that, we see there is a lot of reading the return value of __put_user and __get_user in signal.c. A lot of this code has been copied from kernel, where the accessor functions might fail Qemu uses different model of accessing. Access is already checked in lock_user(), and thus __put/__get user cannot fail. So this patchset clears signal.c from reading __get_user and __put_user return values, and then fixes the definitions of the macros. Riku Riku Voipio (13): signal/all: remove __get/__put_user return value reading signal/x86/setup_frame: __put_user cleanup signal/all: remove return value from copy_siginfo_to_user signal/all: remove return value from setup_sigcontext signal/all: remove return value from restore_sigcontext signal/sparc/restore_fpu_state: remove signal/all/do_sigaltstack remove __get_user value check signal/all/do_sigreturn - remove __get_user checks signal/all/setup_frame remove __put_user checks signal/ppc/{save,restore}_user_regs remove __put/get error checks signal/sparc64_set_context: remove __get_user checks signal/ppc/do_setcontext remove __get_user return check linux-user: fix gcc-4.9 compiler error on __{get,put]}_user linux-user/qemu.h | 12 +- linux-user/signal.c | 1249 +++++++++++++++++++++------------------------------ 2 files changed, 513 insertions(+), 748 deletions(-) -- 2.0.0.rc2