* [PATCH] metag/pgtable: Fix undeclared vm_area_struct warning
@ 2017-05-10 15:36 James Hogan
[not found] ` <20170510153620.28133-1-james.hogan-1AXoQHu6uovQT0dZR+AlfA@public.gmane.org>
0 siblings, 1 reply; 3+ messages in thread
From: James Hogan @ 2017-05-10 15:36 UTC (permalink / raw)
To: linux-metag-u79uwXL29TY76Z2rM5mHXA; +Cc: James Hogan, Michal Hocko
Since commit 1f5307b1e094 ("mm, vmalloc: properly track vmalloc users"),
linux/vmalloc.h includes asm/pgtable.h prior to declaring struct
vm_area_struct, resulting in warnings such as the following on metag:
In file included from ./include/linux/vmalloc.h:10,
from lib/ioremap.c:9:
./arch/metag/include/asm/pgtable.h:221: warning: ‘struct vm_area_struct’ declared inside parameter list
./arch/metag/include/asm/pgtable.h:221: warning: its scope is only this definition or declaration, which is probably not what you want
Metag's asm/pgtable.h doesn't actually need the definition of struct
vm_area_struct, so just declare struct vm_area_struct in the header
rather than including linux/mm_types.h.
Fixes: 1f5307b1e094 ("mm, vmalloc: properly track vmalloc users")
Signed-off-by: James Hogan <james.hogan-1AXoQHu6uovQT0dZR+AlfA@public.gmane.org>
Cc: Michal Hocko <mhocko-IBi9RG/b67k@public.gmane.org>
Cc: linux-metag-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
---
arch/metag/include/asm/pgtable.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/metag/include/asm/pgtable.h b/arch/metag/include/asm/pgtable.h
index ffa3a3a2ecad..4ccb81943ca4 100644
--- a/arch/metag/include/asm/pgtable.h
+++ b/arch/metag/include/asm/pgtable.h
@@ -88,6 +88,8 @@
#include <asm/page.h>
+struct vm_area_struct; /* vma defining user mapping in mm_types.h */
+
/* zero page used for uninitialized stuff */
extern unsigned long empty_zero_page;
#define ZERO_PAGE(vaddr) (virt_to_page(empty_zero_page))
--
2.12.2
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] metag/pgtable: Fix undeclared vm_area_struct warning
[not found] ` <20170510153620.28133-1-james.hogan-1AXoQHu6uovQT0dZR+AlfA@public.gmane.org>
@ 2017-05-11 7:39 ` Michal Hocko
[not found] ` <20170511073915.GC26782-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
0 siblings, 1 reply; 3+ messages in thread
From: Michal Hocko @ 2017-05-11 7:39 UTC (permalink / raw)
To: James Hogan; +Cc: linux-metag-u79uwXL29TY76Z2rM5mHXA
On Wed 10-05-17 16:36:20, James Hogan wrote:
> Since commit 1f5307b1e094 ("mm, vmalloc: properly track vmalloc users"),
> linux/vmalloc.h includes asm/pgtable.h prior to declaring struct
> vm_area_struct, resulting in warnings such as the following on metag:
>
> In file included from ./include/linux/vmalloc.h:10,
> from lib/ioremap.c:9:
> ./arch/metag/include/asm/pgtable.h:221: warning: ‘struct vm_area_struct’ declared inside parameter list
> ./arch/metag/include/asm/pgtable.h:221: warning: its scope is only this definition or declaration, which is probably not what you want
>
> Metag's asm/pgtable.h doesn't actually need the definition of struct
> vm_area_struct, so just declare struct vm_area_struct in the header
> rather than including linux/mm_types.h.
This will be fixed in a different way [1]. It just waits for Andrew to
send the patch to Linus.
[1] http://lkml.kernel.org/r/20170509153702.GR6481-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org
Thanks for the fix anyway!
>
> Fixes: 1f5307b1e094 ("mm, vmalloc: properly track vmalloc users")
> Signed-off-by: James Hogan <james.hogan-1AXoQHu6uovQT0dZR+AlfA@public.gmane.org>
> Cc: Michal Hocko <mhocko-IBi9RG/b67k@public.gmane.org>
> Cc: linux-metag-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> ---
> arch/metag/include/asm/pgtable.h | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/arch/metag/include/asm/pgtable.h b/arch/metag/include/asm/pgtable.h
> index ffa3a3a2ecad..4ccb81943ca4 100644
> --- a/arch/metag/include/asm/pgtable.h
> +++ b/arch/metag/include/asm/pgtable.h
> @@ -88,6 +88,8 @@
>
> #include <asm/page.h>
>
> +struct vm_area_struct; /* vma defining user mapping in mm_types.h */
> +
> /* zero page used for uninitialized stuff */
> extern unsigned long empty_zero_page;
> #define ZERO_PAGE(vaddr) (virt_to_page(empty_zero_page))
> --
> 2.12.2
--
Michal Hocko
SUSE Labs
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] metag/pgtable: Fix undeclared vm_area_struct warning
[not found] ` <20170511073915.GC26782-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
@ 2017-05-11 8:14 ` James Hogan
0 siblings, 0 replies; 3+ messages in thread
From: James Hogan @ 2017-05-11 8:14 UTC (permalink / raw)
To: Michal Hocko; +Cc: linux-metag-u79uwXL29TY76Z2rM5mHXA
[-- Attachment #1: Type: text/plain, Size: 1167 bytes --]
Hi Michal,
On Thu, May 11, 2017 at 09:39:15AM +0200, Michal Hocko wrote:
> On Wed 10-05-17 16:36:20, James Hogan wrote:
> > Since commit 1f5307b1e094 ("mm, vmalloc: properly track vmalloc users"),
> > linux/vmalloc.h includes asm/pgtable.h prior to declaring struct
> > vm_area_struct, resulting in warnings such as the following on metag:
> >
> > In file included from ./include/linux/vmalloc.h:10,
> > from lib/ioremap.c:9:
> > ./arch/metag/include/asm/pgtable.h:221: warning: ‘struct vm_area_struct’ declared inside parameter list
> > ./arch/metag/include/asm/pgtable.h:221: warning: its scope is only this definition or declaration, which is probably not what you want
> >
> > Metag's asm/pgtable.h doesn't actually need the definition of struct
> > vm_area_struct, so just declare struct vm_area_struct in the header
> > rather than including linux/mm_types.h.
>
> This will be fixed in a different way [1]. It just waits for Andrew to
> send the patch to Linus.
>
> [1] http://lkml.kernel.org/r/20170509153702.GR6481-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org
Okay cool. I'll drop this patch then.
Thanks
James
[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 833 bytes --]
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2017-05-11 8:14 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2017-05-10 15:36 [PATCH] metag/pgtable: Fix undeclared vm_area_struct warning James Hogan
[not found] ` <20170510153620.28133-1-james.hogan-1AXoQHu6uovQT0dZR+AlfA@public.gmane.org>
2017-05-11 7:39 ` Michal Hocko
[not found] ` <20170511073915.GC26782-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
2017-05-11 8:14 ` James Hogan
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.