Re: [PATCH] MIPS: BMIPS: fix bmips_wr_vec()

[Florian Fainelli <f.fainelli@gmail.com>]

On 26/05/15 23:25, Petri Gynther wrote:
> bmips_wr_vec() copies exception vector code from start to dst.
> 
> The call to dma_cache_wback() needs to flush (end-start) bytes,
> starting at dst, from write-back cache to memory.
> 
> Signed-off-by: Petri Gynther <pgynther@google.com>

Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Fixes: df0ac8a406718 ("MIPS: BMIPS: Add SMP support code for
BMIPS43xx/BMIPS5000")
CC: stable@vger.kernel.org # 3.4+

> ---
>  arch/mips/kernel/smp-bmips.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/mips/kernel/smp-bmips.c b/arch/mips/kernel/smp-bmips.c
> index fd528d7..336708a 100644
> --- a/arch/mips/kernel/smp-bmips.c
> +++ b/arch/mips/kernel/smp-bmips.c
> @@ -444,7 +444,7 @@ struct plat_smp_ops bmips5000_smp_ops = {
>  static void bmips_wr_vec(unsigned long dst, char *start, char *end)
>  {
>  	memcpy((void *)dst, start, end - start);
> -	dma_cache_wback((unsigned long)start, end - start);
> +	dma_cache_wback(dst, end - start);
>  	local_flush_icache_range(dst, dst + (end - start));
>  	instruction_hazard();
>  }
> 


-- 
Florian