RE: [PATCH] ARM: Use asm-generic/sizes.h
From: Guan Xuetao
Date: Wed Mar 23 2011 - 04:33:42 EST
> -----Original Message-----
> From: Stephen Boyd [mailto:sboyd@xxxxxxxxxxxxxx]
> Sent: Wednesday, March 23, 2011 11:17 AM
> To: Guan Xuetao
> Cc: 'Russell King - ARM Linux'; linux-arm-kernel@xxxxxxxxxxxxxxxxxxx; 'Arnd Bergmann'; linux-kernel@xxxxxxxxxxxxxxx
> Subject: Re: [PATCH] ARM: Use asm-generic/sizes.h
> On 03/22/2011 06:29 PM, Guan Xuetao wrote:
> >> -----Original Message-----
> >> From: Stephen Boyd [mailto:sboyd@xxxxxxxxxxxxxx]
> >> Sent: Wednesday, March 23, 2011 2:40 AM
> >> To: Guan Xuetao
> >> Cc: 'Arnd Bergmann'; linux-arm-kernel@xxxxxxxxxxxxxxxxxxx; 'Russell King - ARM Linux'; linux-kernel@xxxxxxxxxxxxxxx
> >> Subject: Re: [PATCH] ARM: Use asm-generic/sizes.h
> >> Ah, I didn't notice this part. SZ_48M is actually used by ARM code so
> >> that would need to be added to the generic header should we go with this
> >> patch.
> > IMO, the content of asm-generic/sizes.h should only include power-of-2 sizes definitions.
> > And SZ_48M could be replaced by (SZ_32M | SZ_16M) or (SZ_32M + SZ_16M), or added to arch-specific headers.
> I'm hoping that kbuild gets asm-generic support sometime soon so files
> with only a "#include <asm-generic/*>" are generated instead of living
> in the tree. In that case I'd rather have the non power of 2 constants
> added to the generic sizes.h and be done with it. There isn't any strong
> technical reason to deny power of 2 constants from the generic header,
I just think that power-of-2 sizes are more generic, not compulsively of course.
Sam Ravnborg had introduced a patch set to provide generic support for
architectures that using one-line asm-generic headers.
CC: Sam Ravnborg <sam@xxxxxxxxxxxx>
> Note: SH could also move to this if SZ_26M is put in the generic header.
> Sent by an employee of the Qualcomm Innovation Center, Inc.
> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/