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authorArnd Bergmann <[email protected]>2016-02-17 09:32:58 +0100
committerGreg Kroah-Hartman <[email protected]>2016-02-20 15:18:33 -0800
commit8c5af16f7953edb709d2f93ce69ea9da7dbfab40 (patch)
tree26577e8981ef0e71db571d0cdde38c702a920ca4 /tools/perf/scripts/python/netdev-times.py
parentb900d5793733c2035324051934be2cb3b714ba46 (diff)
staging: rtl8712: reduce stack usage
The "translate_scan" function in rtl8712 uses a lot of stack, and gets inlined into its single caller, r8711_wx_get_scan, which in some configurations now blows the 1024 byte stack warning limit: drivers/staging/rtl8712/rtl871x_ioctl_linux.c: In function 'r8711_wx_get_scan': drivers/staging/rtl8712/rtl871x_ioctl_linux.c:1227:1: error: the frame size of 1032 bytes is larger than 1024 bytes [-Werror=frame-larger-than=] This somewhat reduces the stack usage by moving the translate_scan function out of line with the noinline_for_stack annotation. It might be possible to modify translate_scan() a little further to reduce the stack usage, but with this patch, we can build without the warning, the the call chain to get here is rather predictable (sys_ioctl->vfs_ioctl->sock_ioctl->dev_ioctl->wext_ioctl-> r8711_wx_get_scan). Signed-off-by: Arnd Bergmann <[email protected]> Acked-by: Larry Finger <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/netdev-times.py')
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