Arnd Bergmann <a...@arndb.de> writes: > In some configurations, this function uses more than the warning limit > of 1024 bytes: > > 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 > 1040 bytes is larger than 1024 bytes [-Werror=frame-larger-than=] > > It turns out that there are two large arrays on the stack here, but > almost all the data in them is never used outside of the loop in > which it gets written, so we can replace the array with a single > instance. > > The .valid flag is used later, so I'm replacing the array of structures > with an array of bools. An obvious follow-up optimization would be > to replace it with a bitmask and set_bit()/find_first_bit()/ > find_last_bit()/... operations. However, I have not tested this patch, > so I sticked to the simpler transformation that does the job of > reducing the stack usage to a harmless level. > > Signed-off-by: Arnd Bergmann <a...@arndb.de>
Applied to ath.git, thanks. -- Kalle Valo _______________________________________________ ath9k-devel mailing list ath9k-devel@lists.ath9k.org https://lists.ath9k.org/mailman/listinfo/ath9k-devel
