On Thu, Jun 02, 2016 at 09:38:16AM +0200, Arnd Bergmann wrote:
On Thursday, June 2, 2016 3:01:27 AM CEST Build bot for Mark Brown wrote:
Warnings Summary: 3 1 ../lib/lz4/lz4hc_compress.c:514:1: warning: the frame size of 1472 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 ../drivers/xen/balloon.c:155:13: warning: 'release_memory_resource' declared 'static' but never defined [-Wunused-function] 1 ../drivers/mtd/chips/cfi_cmdset_0020.c:651:1: warning: the frame size of 1032 bytes is larger than 1024 bytes [-Wframe-larger-than=]
That looks really nice! I hadn't noticed we were down that far with the warnings.
The two stack warnings are fixed by c87bf431448b ("gcov: disable tree-loop-im to reduce stack usage"), which is now in mainline. I think this warns about a valid bug (gcc misoptimization leading to excessive stack usage).
Greg, would you consider that fix for backports?
Yes! I keep trying to get this down to 0 to make it easier to notice when backports go wrong. In looking at my queue, it's still in there, just haven't gotten to it yet...
The Xen warning unfortunately appeared with 58d378b24b7f ("xen/balloon: Fix crash when ballooning on x86 32 bit PAE"), which was backported from mainline into v4.4.10. I made a fix that is in -next now, bdadcaf2a7c1 ("xen: remove incorrect forward declaration"), but I don't know when that will get merged.
See, I missed this getting added, not good on my part. I'll watch out for this to be merged, thanks.
greg k-h
Arnd
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