Re: [PATCH] crypto: be*_add_cpu conversion

Marcin Slusarz
2008-02-13T18:37:53Z

On Wed, Feb 13, 2008 at 09:25:47AM +0100, Roel Kluin wrote:
> marcin.slusarz@gmail.com wrote:
> > From: Marcin Slusarz <marcin.slusarz@gmail.com>
> >
> > replace all:
> > big_endian_variable = cpu_to_beX(beX_to_cpu(big_endian_variable) +
> > expression_in_cpu_byteorder);
> > with:
> > beX_add_cpu(&big_endian_variable, expression_in_cpu_byteorder);
> > generated with semantic patch
> >
> > Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
> > Cc: Herbert Xu <herbert@gondor.apana.org.au>
> > Cc: David S. Miller <davem@davemloft.net>
> > ---
> > crypto/lrw.c | 2 +-
> > 1 files changed, 1 insertions(+), 1 deletions(-)
> >
> > diff --git a/crypto/lrw.c b/crypto/lrw.c
> > index 9d52e58..4d93928 100644
> > --- a/crypto/lrw.c
> > +++ b/crypto/lrw.c
> > @@ -92,7 +92,7 @@ struct sinfo {
> > static inline void inc(be128 *iv)
> > {
> > if (!(iv->b = cpu_to_be64(be64_to_cpu(iv->b) + 1)))
>
> maybe you also want instead of the line above:
>
> be64_add_cpu(&iv->b, 1);
> if (!iv->b)
>
> > - iv->a = cpu_to_be64(be64_to_cpu(iv->a) + 1);
> > + be64_add_cpu(&iv->a, 1);
> > }
> >
> > static inline void lrw_round(struct sinfo *s, void *dst, const void *src)
>
I'm a bit ashamed... but here is updated patch:
---
crypto: replace all adds to big endians variables with be*_add_cpu

replace all:
big_endian_variable = cpu_to_beX(beX_to_cpu(big_endian_variable) +
expression_in_cpu_byteorder);
with:
beX_add_cpu(&big_endian_variable, expression_in_cpu_byteorder);

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: David S. Miller <davem@davemloft.net>
Cc: Roel Kluin <12o3l@tiscali.nl>
---
crypto/lrw.c | 5 +++--
1 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/crypto/lrw.c b/crypto/lrw.c
index 9d52e58..8ef664e 100644
--- a/crypto/lrw.c
+++ b/crypto/lrw.c
@@ -91,8 +91,9 @@ struct sinfo {

static inline void inc(be128 *iv)
{
- if (!(iv->b = cpu_to_be64(be64_to_cpu(iv->b) + 1)))
- iv->a = cpu_to_be64(be64_to_cpu(iv->a) + 1);
+ be64_add_cpu(&iv->b, 1);
+ if (!iv->b)
+ be64_add_cpu(&iv->a, 1);
}

static inline void lrw_round(struct sinfo *s, void *dst, const void *src)
--
1.5.3.7