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Commit 74ff6cb3 authored by Marcelo Cerri's avatar Marcelo Cerri Committed by Herbert Xu
Browse files

crypto: sha1-powerpc - little-endian support 



The driver does not handle endianness properly when loading the input
data.

Signed-off-by: default avatarMarcelo Cerri <marcelo.cerri@canonical.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 50d2e6dc

arch/powerpc/crypto/sha1-powerpc-asm.S

+11 −2
Original line number Diff line number Diff line
@@ -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