Fri, Sep 23, 2016 at 04:31:56PM -0300, Marcelo Cerri wrote:
> The driver does not handle endianness properly when loading the input
> data.

Indeed. I tested in both endianesses and it's working fine. Thanks!

Herbert, can we go ahead with this fix?

> 
> Signed-off-by: Marcelo Cerri <marcelo.ce...@canonical.com>
> ---
>  arch/powerpc/crypto/sha1-powerpc-asm.S | 13 +++++++++++--
>  1 file changed, 11 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/powerpc/crypto/sha1-powerpc-asm.S 
> b/arch/powerpc/crypto/sha1-powerpc-asm.S
> index 125e165..82ddc9b 100644
> --- a/arch/powerpc/crypto/sha1-powerpc-asm.S
> +++ b/arch/powerpc/crypto/sha1-powerpc-asm.S
> @@ -7,6 +7,15 @@
>  #include <asm/ppc_asm.h>
>  #include <asm/asm-offsets.h>
> 
> +#ifdef __BIG_ENDIAN__
> +#define LWZ(rt, d, ra)       \
> +     lwz     rt,d(ra)
> +#else
> +#define LWZ(rt, d, ra)       \
> +     li      rt,d;   \
> +     lwbrx   rt,rt,ra
> +#endif
> +
>  /*
>   * We roll the registers for T, A, B, C, D, E around on each
>   * iteration; T on iteration t is A on iteration t+1, and so on.
> @@ -23,7 +32,7 @@
>  #define W(t) (((t)%16)+16)
> 
>  #define LOADW(t)                             \
> -     lwz     W(t),(t)*4(r4)
> +     LWZ(W(t),(t)*4,r4)
> 
>  #define STEPD0_LOAD(t)                               \
>       andc    r0,RD(t),RB(t);         \
> @@ -33,7 +42,7 @@
>       add     r0,RE(t),r15;                   \
>       add     RT(t),RT(t),r6;         \
>       add     r14,r0,W(t);                    \
> -     lwz     W((t)+4),((t)+4)*4(r4); \
> +     LWZ(W((t)+4),((t)+4)*4,r4);     \
>       rotlwi  RB(t),RB(t),30;                 \
>       add     RT(t),RT(t),r14
> 
> -- 
> 2.7.4
> 

-- 
Paulo Flabiano Smorigo
IBM Linux Technology Center

--
To unsubscribe from this list: send the line "unsubscribe linux-crypto" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Reply via email to