Re: [Qemu-devel] [PATCH] ahci: fix ICC mask definition

[John Snow <jsnow@redhat.com>]

Peter: I assume you still want this for 2.4 to fix the clang warnings, yes?

On 07/21/2015 02:02 PM, John Snow wrote:
> There are likely others that could be updated, but we'll
> go with a light touch for 2.4 for now.
> 
> Without the Unsigned specifier, this shifts bits into the
> signed bit, which makes clang unhappy and could cause
> unwanted behavior.
> 
> Reported-by: Peter Maydell <peter.maydell@linaro.org>
> Signed-off-by: John Snow <jsnow@redhat.com>
> ---
>  hw/ide/ahci.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/hw/ide/ahci.h b/hw/ide/ahci.h
> index 68d5074..79a463d 100644
> --- a/hw/ide/ahci.h
> +++ b/hw/ide/ahci.h
> @@ -127,7 +127,7 @@
>  #define PORT_CMD_SPIN_UP          (1 << 1) /* Spin up device */
>  #define PORT_CMD_START            (1 << 0) /* Enable port DMA engine */
>  
> -#define PORT_CMD_ICC_MASK         (0xf << 28) /* i/f ICC state mask */
> +#define PORT_CMD_ICC_MASK        (0xfU << 28) /* i/f ICC state mask */
>  #define PORT_CMD_ICC_ACTIVE       (0x1 << 28) /* Put i/f in active state */
>  #define PORT_CMD_ICC_PARTIAL      (0x2 << 28) /* Put i/f in partial state */
>  #define PORT_CMD_ICC_SLUMBER      (0x6 << 28) /* Put i/f in slumber state */
>