On Monday 06 June 2016 09:37 AM, Sudip Mukherjee wrote:
On Thu, Jan 10, 2002 at 12:50:58AM +0800, kbuild test robot wrote:
Hi,
It's probably a bug fix that unveils the link errors.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: af8c34ce6ae32addda3788d54a7e340cad22516b
commit: 420520766a796d36076111139ba1e4fb1aadeadd [media] media: Kconfig: add dependency of HAS_DMA
date: in the future
config: m32r-allyesconfig (attached as .config)
compiler: m32r-linux-gcc (GCC) 4.9.0
reproduce:
wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
git checkout 420520766a796d36076111139ba1e4fb1aadeadd
# save the attached .config to linux build tree
make.cross ARCH=m32r
Thanks, i will reproduce this tonight and see. But just fyi, i am no
longer using my sudip@xxxxxxxxxxxxxxx because of a change in dayjob.
I would have missed this mail unless the date of the mail was showing
as Jan 10, 2002.
Before this patch m32r allyesconfig used to fail with the error:
../drivers/media/v4l2-core/videobuf2-dma-contig.c: In function
'vb2_dc_get_userptr':
../drivers/media/v4l2-core/videobuf2-dma-contig.c:484:28: error:
implicit declaration of function 'dma_get_cache_alignment'
[-Werror=implicit-function-declaration]
unsigned long dma_align = dma_get_cache_alignment();
and build never went past this point. This concerned patch fixed the
error and brought out new errors which were never known before this patch.
Regards
Sudip
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