Re: next build: 7 warnings 3 failures (next/next-20160708)

[Arnd Bergmann <arnd@arndb.de>]

On Friday, July 8, 2016 2:56:41 AM CEST Olof's autobuilder wrote:
> Here are the build results from automated periodic testing.
> 
> The tree being built was next, found at:
> 
> http://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git (master branch)
> 
> Topmost commit:
> 
> a379b037 Add linux-next specific files for 20160708
> 
> Build logs (stderr only) can be found at the following link (experimental):
> 
> http://arm-soc.lixom.net/buildlogs/next/next-20160708/
> 
> 
> 	Runtime:		114m 2s
> 
> 	Passed:			117
> 	Failed:			3
> 
> 	Warnings:		7
> 
> 	Section mismatches:	0
> 
> -------------------------------------------------------------------------------
> 
> Failed defconfigs:
> 	arm64.allmodconfig
> 	arm64.defconfig
> 	arm.allmodconfig
> 
> -------------------------------------------------------------------------------
> 
> Errors:
> 
> 	arm64.allmodconfig:
> /work/build/batch/drivers/gpu/drm/rockchip/rockchip_drm_drv.c:17:27: fatal error: asm/dma-iommu.h: No such file or directory
> 
> 	arm64.defconfig:
> 
> 	arm.allmodconfig:

It seems the link errors didn't make it into the log, this is from
http://arm-soc.lixom.net/buildlogs/next/next-20160708/buildall.arm.allmodconfig.log.failed
and we get the same thing on arm64 defconfig:

drivers/gpu/drm/msm/msm_drv.o:(.rodata+0x2c0): multiple definition of `__mod_of__dt_match_device_table'
drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.o:(.rodata+0x11c): first defined here

The commit causing it is

b71a717c955a ("drm/msm/mdp5: Update compatible strings for MDSS/MDP5")

and the problem is that two match tables with the same name "dt_match"
are linked into the same module.

	Arnd