Mathieu Desnoyers wrote: > * Arnd Bergmann (arnd@xxxxxxxx) wrote: > > On Wednesday 28 April 2010, Peter Fritzsche 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: Arnd Bergmann <arnd@xxxxxxxx> > > AFAIK that was the last architecture imposing limitations below 32 bits > on atomic_t. > > Acked-by: Mathieu Desnoyers <mathieu.desnoyers@xxxxxxxxxxxx> If the comment's getting removed, it should probably go from here too: linux-2.6$ git grep '24' arch/*/include/*/atomic* arch/mn10300/include/asm/atomic.h: * useful range of an atomic_t is only 24 bits arch/mn10300/include/asm/atomic.h: * useful range of an atomic_t is only 24 bits arch/mn10300/include/asm/atomic.h: * Note that the guaranteed useful range of an arch/mn10300/include/asm/atomic.h: * Note that the guaranteed useful range of an -- Jamie -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
