On Tuesday 02 February 2016 15:30:36 Mark Brown wrote:
On Tue, Feb 02, 2016 at 02:28:36PM +0100, Arnd Bergmann wrote:
On Tuesday 02 February 2016 06:41:08 Build bot for Mark Brown wrote:
1 ../lib/lz4/lz4hc_compress.c:514:1: warning: the frame size of 1472 bytes is larger than 1024 bytes [-Wframe-larger-than=]I don't get this on my machine. Maybe another misoptimization by older gcc versions?
It's GCC 4.9 and 5.1..
Ok, I found it now. My series has one patch to disable ARCH_HAS_GCOV_PROFILE_ALL on ARM. Without that symbol, I get the same thing on all compiler versions on allmodconfig, and then I also get these:
drivers/video/fbdev/i740fb.c: In function 'i740fb_decode_var': drivers/video/fbdev/i740fb.c:650:26: error: 'wm' may be used uninitialized in this function [-Werror=maybe-uninitialized] kernel/cgroup.c: In function 'cgroup_mount': kernel/cgroup.c:2119:11: error: 'root' may be used uninitialized in this function [-Werror=maybe-uninitialized] drivers/clk/st/clk-flexgen.c: In function 'st_of_flexgen_setup': drivers/clk/st/clk-flexgen.c:323:9: error: 'num_parents' may be used uninitialized in this function [-Werror=maybe-uninitialized] drivers/net/ethernet/mellanox/mlxsw/reg.h: In function 'mlxsw_reg_htgt_pack': drivers/net/ethernet/mellanox/mlxsw/reg.h:2511:5: error: 'swid' may be used uninitialized in this function [-Werror=maybe-uninitialized] drivers/net/ethernet/mellanox/mlxsw/reg.h:2511:11: error: 'rdq' may be used uninitialized in this function [-Werror=maybe-uninitialized] drivers/net/wireless/ath/ath9k/ar9003_aic.c: In function 'ar9003_aic_cal_post_process': drivers/net/wireless/ath/ath9k/ar9003_aic.c:434:1: error: the frame size of 1272 bytes is larger than 1024 bytes [-Werror=frame-larger-than=]
Just when I thought I had all randconfig warnings covered...
There are probably others that are not active with allmodconfig but with some other randconfig build with ARCH_HAS_GCOV_PROFILE_ALL enabled.
Arnd