Re: [PATCH 1/2] mn10300: Don't warn that atomic_t is only 24 bit

From: David Howells
Date: Wed Apr 28 2010 - 09:23:44 EST


Peter Fritzsche <peter.fritzsche@xxxxxx> wrote:

> 32-bit Sparc used to only allow usage of 24-bit of it's atomic_t type.
> This was corrected with linux 2.6.3 when Keith M Wesolowski changed the
> implementation to use the parisc approach of having an array of
> spinlocks to protect the atomic_t.
>
> These warnings were also removed from the sparc implementation when the
> new implementation was merged in BKrev:402e4949VThdc6D3iaosSFUgabMfvw,
> but the warning still remained in some other places without any
> 24-bit-only atomic_t implementation inside the kernel.
>
> We should remove these warnings to allow users to rely on the full
> 32-bit range of atomic_t.
>
> Signed-off-by: Peter Fritzsche <peter.fritzsche@xxxxxx>

Acked-by: David Howells <dhowells@xxxxxxxxxx>
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