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Re: [PATCH v3] MIPS: Fix build breakage caused by header file changes

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On Mon, Mar 06, 2017 at 07:30:05PM -0800, Guenter Roeck wrote:
> On 03/06/2017 03:20 PM, James Hogan wrote:
> > On Mon, Mar 06, 2017 at 11:13:55AM -0800, Guenter Roeck wrote:
> >> Since commit f3ac60671954 ("sched/headers: Move task-stack related
> >> APIs from <linux/sched.h> to <linux/sched/task_stack.h>") and commit
> >> f780d89a0e82 ("sched/headers: Remove <asm/ptrace.h> from
> >> <linux/sched.h>"), various mips builds fail as follows.
> >>
> >> arch/mips/kernel/smp-mt.c: In function ‘vsmp_boot_secondary’:
> >> arch/mips/include/asm/processor.h:384:41: error:
> >> 	implicit declaration of function ‘task_stack_page’
> >>
> >> In file included from
> >> 	/opt/buildbot/slave/hwmon-testing/build/arch/mips/kernel/pm.c:
> >> arch/mips/include/asm/fpu.h: In function '__own_fpu':
> >> arch/mips/include/asm/processor.h:385:31: error:
> >> 	invalid application of 'sizeof' to incomplete type 'struct pt_regs'
> >
> > This one is in an inline function, so I think it'd affect multiple
> > includes of <asm/fpu.h> even if __own_fpu isn't used, so I think the
> > following patch which adds the include ptrace.h in fpu.h is more robust
> > than adding to the individual c files affected:
> > https://patchwork.linux-mips.org/patch/15386/
> >
> Agreed.
> 
> > Admitedly it could probably have a more specific subject line since
> > there are more similar errors.
> 
> Does that fix all compile problems ? Seems to me that we'll still need
> 
> -#include <linux/sched.h>
> +#include <linux/sched/task_stack.h>
> 
> or did you prepare a patch for this as well ?

It fixed the config I was using at the time. I didn't do a full build
test of all configs at the time so didn't fix the above.

Cheers
James

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[PATCH v3] MIPS: Fix build breakage caused by header file changes Guenter Roeck <linux@roeck-us.net> - 2017-03-06 21:10 +0100
  Re: [PATCH v3] MIPS: Fix build breakage caused by header file changes James Hogan <james.hogan@imgtec.com> - 2017-03-07 00:50 +0100
    Re: [PATCH v3] MIPS: Fix build breakage caused by header file changes Guenter Roeck <linux@roeck-us.net> - 2017-03-07 04:40 +0100
      Re: [PATCH v3] MIPS: Fix build breakage caused by header file changes James Hogan <james.hogan@imgtec.com> - 2017-03-07 11:10 +0100
        Re: [PATCH v3] MIPS: Fix build breakage caused by header file changes James Hogan <james.hogan@imgtec.com> - 2017-03-07 11:40 +0100
    Re: [PATCH v3] MIPS: Fix build breakage caused by header file changes Ingo Molnar <mingo@kernel.org> - 2017-03-07 10:30 +0100
      Re: [PATCH v3] MIPS: Fix build breakage caused by header file changes James Hogan <james.hogan@imgtec.com> - 2017-03-07 11:10 +0100
        Re: [PATCH v3] MIPS: Fix build breakage caused by header file changes Ingo Molnar <mingo@kernel.org> - 2017-03-07 11:40 +0100

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