Re: [PATCH 04/10] crypto: omap-aes: Use BIT() macro
From: Herbert Xu
Date: Mon Jul 06 2015 - 03:42:32 EST
On Thu, Jul 02, 2015 at 02:59:03AM -0500, Felipe Balbi wrote:
> On Thu, Jul 02, 2015 at 10:48:34AM +0530, Lokesh Vutla wrote:
> > Use BIT()/GENMASK() macros for all register definitions instead of
> > hand-writing bit masks.
> >
> > Signed-off-by: Lokesh Vutla <lokeshvutla@xxxxxx>
> > ---
> > drivers/crypto/omap-aes.c | 36 ++++++++++++++++++------------------
> > 1 file changed, 18 insertions(+), 18 deletions(-)
> >
> > diff --git a/drivers/crypto/omap-aes.c b/drivers/crypto/omap-aes.c
> > index 96fc7f7..d974ab6 100644
> > --- a/drivers/crypto/omap-aes.c
> > +++ b/drivers/crypto/omap-aes.c
> > @@ -52,30 +52,30 @@
> > #define AES_REG_IV(dd, x) ((dd)->pdata->iv_ofs + ((x) * 0x04))
> >
> > #define AES_REG_CTRL(dd) ((dd)->pdata->ctrl_ofs)
> > -#define AES_REG_CTRL_CTR_WIDTH_MASK (3 << 7)
> > -#define AES_REG_CTRL_CTR_WIDTH_32 (0 << 7)
> > -#define AES_REG_CTRL_CTR_WIDTH_64 (1 << 7)
> > -#define AES_REG_CTRL_CTR_WIDTH_96 (2 << 7)
> > -#define AES_REG_CTRL_CTR_WIDTH_128 (3 << 7)
> > -#define AES_REG_CTRL_CTR (1 << 6)
> > -#define AES_REG_CTRL_CBC (1 << 5)
> > -#define AES_REG_CTRL_KEY_SIZE (3 << 3)
> > -#define AES_REG_CTRL_DIRECTION (1 << 2)
> > -#define AES_REG_CTRL_INPUT_READY (1 << 1)
> > -#define AES_REG_CTRL_OUTPUT_READY (1 << 0)
> > -#define AES_REG_CTRL_MASK FLD_MASK(24, 2)
> > +#define AES_REG_CTRL_CTR_WIDTH_MASK GENMASK(8, 7)
> > +#define AES_REG_CTRL_CTR_WIDTH_32 0
> > +#define AES_REG_CTRL_CTR_WIDTH_64 BIT(7)
> > +#define AES_REG_CTRL_CTR_WIDTH_96 BIT(8)
> > +#define AES_REG_CTRL_CTR_WIDTH_128 GENMASK(8, 7)
> > +#define AES_REG_CTRL_CTR BIT(6)
> > +#define AES_REG_CTRL_CBC BIT(5)
> > +#define AES_REG_CTRL_KEY_SIZE GENMASK(4, 3)
> > +#define AES_REG_CTRL_DIRECTION BIT(2)
> > +#define AES_REG_CTRL_INPUT_READY BIT(1)
> > +#define AES_REG_CTRL_OUTPUT_READY BIT(0)
> > +#define AES_REG_CTRL_MASK GENMASK(24, 2)
>
> this was defined a couple patches ago, why didn't you define it with
> GENMASK() to start with ?
Indeed, this should be folded into the earlier patch.
Thanks,
--
Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
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