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SubjectRe: [PATCH 3/7] Input: libps2 - use BIT() for bitmask constants
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On 01/19/2018 11:41 AM, Dmitry Torokhov wrote:
> Let's explicitly document bit numbers with BIT() macro.
>
> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Makes sense, but something should
#include <linux/bitops.h>

per Documentation/process/submit-checklist.rst Rule #1:
1) If you use a facility then #include the file that defines/declares
that facility. Don't depend on other header files pulling in ones
that you use.


> ---
> include/linux/libps2.h | 10 +++++-----
> 1 file changed, 5 insertions(+), 5 deletions(-)
>
> diff --git a/include/linux/libps2.h b/include/linux/libps2.h
> index 365c50b097ded..649295a5ff47d 100644
> --- a/include/linux/libps2.h
> +++ b/include/linux/libps2.h
> @@ -20,11 +20,11 @@
> #define PS2_RET_NAK 0xfe
> #define PS2_RET_ERR 0xfc
>
> -#define PS2_FLAG_ACK 1 /* Waiting for ACK/NAK */
> -#define PS2_FLAG_CMD 2 /* Waiting for command to finish */
> -#define PS2_FLAG_CMD1 4 /* Waiting for the first byte of command response */
> -#define PS2_FLAG_WAITID 8 /* Command execiting is GET ID */
> -#define PS2_FLAG_NAK 16 /* Last transmission was NAKed */
> +#define PS2_FLAG_ACK BIT(0) /* Waiting for ACK/NAK */
> +#define PS2_FLAG_CMD BIT(1) /* Waiting for a command to finish */
> +#define PS2_FLAG_CMD1 BIT(2) /* Waiting for the first byte of command response */
> +#define PS2_FLAG_WAITID BIT(3) /* Command executing is GET ID */
> +#define PS2_FLAG_NAK BIT(4) /* Last transmission was NAKed */
>
> struct ps2dev {
> struct serio *serio;
>


--
~Randy

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