Vipin KUMAR wrote:
> change_bit routine is left implementation dependent until now.
> This routine is now defined for arm platforms in asm-arm/bitops.h
>
Add a reason on why this change is needed.
Something like
'mtd/nand/.. needs this to be defined..
and the new nand driver needs it.. '
Tom
> Signed-off-by: Vipin Kumar <vipin.ku...@st.com>
> ---
> arch/arm/include/asm/bitops.h | 11 +++++++++--
> 1 files changed, 9 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm/include/asm/bitops.h b/arch/arm/include/asm/bitops.h
> index 270f163..435857b 100644
> --- a/arch/arm/include/asm/bitops.h
> +++ b/arch/arm/include/asm/bitops.h
> @@ -29,8 +29,6 @@ extern void set_bit(int nr, volatile void * addr);
>
> extern void clear_bit(int nr, volatile void * addr);
>
> -extern void change_bit(int nr, volatile void * addr);
> -
> static inline void __change_bit(int nr, volatile void *addr)
> {
> unsigned long mask = BIT_MASK(nr);
> @@ -39,6 +37,15 @@ static inline void __change_bit(int nr, volatile void
> *addr)
> *p ^= mask;
> }
>
> +static inline void change_bit(int nr, volatile void *addr)
> +{
> + unsigned long flags;
> +
> + local_irq_save(flags);
> + __change_bit(nr, addr);
> + local_irq_restore(flags);
> +}
> +
> static inline int __test_and_set_bit(int nr, volatile void *addr)
> {
> unsigned long mask = BIT_MASK(nr);
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