Re: lib/string.h build failure in linux-next

On Tue, Mar 6, 2012 at 2:55 PM, Paul Gortmaker
[off-list ref] wrote:

On Tue, Mar 6, 2012 at 11:16 AM, Mark Salter [off-list ref] wrote:

quoted

On Tue, 2012-03-06 at 16:02 +0000, Arnd Bergmann wrote:

quoted

On Tuesday 06 March 2012, Mark Salter wrote:

quoted

I'm seeing a build failure in lib/string.h in linux-next:

/es/linux/linux-next/lib/string.c: In function 'strlcat':
/es/linux/linux-next/lib/string.c:225:2: error: implicit declaration of function 'printk'
/es/linux/linux-next/lib/string.c:225:2: error: implicit declaration of function 'panic'

Commit e2950c2b6ecb928bfd3a13dd237df1f29f712704 removed an include of
linux/module.h which triggered the problem for arch/c6x and probably
other architectures using the asm-generic BUG macro.

I think this needs fixing in asm-generic/bug.h which should include
linux/kernel.h for panic and linux/printk.h for printk.

I think you cannot do that as long as linux/kernel.h includes asm/bug.h,
or you will get a lot of other build failures.

It didn't for my build, but to tell the truth, I really wasn't too keen
on adding an include of kernel.h to asm/bug.h since kernel.h pulls in so
much other stuff.

quoted

The safer option is probably to add the two missing headers separately
to string.c.

Okay, I can put together a patch that does that.

I can deal with this, since it is interaction between my bug commits and my
module commits that trigger it.  Can you tell me what config you are using, so
I can double check I have it sorted properly?

Never mind the config.  I missed the arch/c6x initially.  I've got a
c6x toolchain
now and can reproduce it with the dsk6455_defconfig.  Will be fixed for this
evening's linux-next.

Thanks for the report.
Paul.

Thanks.
Paul.

quoted

--Mark


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