Re: [dm-devel] Error when compiling drivers/md/dm-bufio.c

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On 11-07 10:36, Mikulas Patocka wrote:
> 
> 
> On Mon, 7 Nov 2011, Alasdair G Kergon wrote:
> 
> > On Mon, Nov 07, 2011 at 09:22:31AM +0100, Witold Baryluk wrote:
> > > I just got error on todays Linus' tree
> > >   CC [M]  drivers/md/dm-bufio.o
> > > drivers/md/dm-bufio.c:988:1: warning: type defaults to ‘int’ in declaration of ‘EXPORT_SYMBOL_GPL’ [-Wimplicit-int]
> > 
> > Probably related to this merge:
> >   commit 32aaeffbd4a7457bf2f7448b33b5946ff2a960eb
> >   Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/ker
> > 
> > Previously module.h was included via another header file.
> > Now, bufio.c needs an explicit
> > 
> > #include <linux/module.h>
> > 
> > Alasdair
> > 
> 
> Yes, apply this patch:
> 
> dm-bufio: Include <linux/module.h>
> 
> Signed-off-by: Mikulas Patocka <mpatocka@xxxxxxxxxx>
> 
> ---
>  drivers/md/dm-bufio.c |    1 +
>  1 file changed, 1 insertion(+)
> 
> Index: linux-2.6-compile/drivers/md/dm-bufio.c
> ===================================================================
> --- linux-2.6-compile.orig/drivers/md/dm-bufio.c	2011-11-07 16:31:34.000000000 +0100
> +++ linux-2.6-compile/drivers/md/dm-bufio.c	2011-11-07 16:31:41.000000000 +0100
> @@ -8,6 +8,7 @@
>  
>  #include "dm-bufio.h"
>  
> +#include <linux/module.h>
>  #include <linux/device-mapper.h>
>  #include <linux/dm-io.h>
>  #include <linux/slab.h>
> 
> Mikulas

Compiles.

However, I get similar warnings (not errors this times,
because only variables are used probably, and implicitly used as ints)

  CC [M]  drivers/md/persistent-data/dm-space-map-checker.o
drivers/md/persistent-data/dm-space-map-checker.c:427:1: warning: data definition has no type or storage class [enabled by default]
drivers/md/persistent-data/dm-space-map-checker.c:427:1: warning: type defaults to ‘int’ in declaration of ‘EXPORT_SYMBOL_GPL’ [-Wimplicit-int]
drivers/md/persistent-data/dm-space-map-checker.c:427:1: warning: parameter names (without types) in function declaration [enabled by default]
drivers/md/persistent-data/dm-space-map-checker.c:433:1: warning: data definition has no type or storage class [enabled by default]
drivers/md/persistent-data/dm-space-map-checker.c:433:1: warning: type defaults to ‘int’ in declaration of ‘EXPORT_SYMBOL_GPL’ [-Wimplicit-int]
drivers/md/persistent-data/dm-space-map-checker.c:433:1: warning: parameter names (without types) in function declaration [enabled by default]
  CC [M]  drivers/md/persistent-data/dm-space-map-common.o

Adding similar include to dm-space-map-checker.c, resolves problem.

No further problems found (however I do not have all CONFIG_DM_* enabled).

Regards,
Witek



-- 
Witold Baryluk
JID: witold.baryluk // jabster.pl
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