wrong end address passed to flush_dcache_range. modified the flush_dache logic for scatter list elements.

Fixes: 1919f58a8f (crypto/fsl: fsl_hash: Fix dcache issue in caam_hash_finish) Signed-off-by: Gaurav Jain gaurav.jain@nxp.com --- changes in v4: - fix powerpc error: left shift count >= width of type [-Wshift-count-overflow] addr = (addr << 32) | sec_in32(&ctx->sg_tbl[i].addr_lo); ^~ changes in v3: - fix error: left shift count >= width of type [-Werror=shift-count-overflow]

drivers/crypto/fsl/fsl_hash.c | 22 ++++++++++++++++------ 1 file changed, 16 insertions(+), 6 deletions(-)

diff --git a/drivers/crypto/fsl/fsl_hash.c b/drivers/crypto/fsl/fsl_hash.c index 575196778c..f22f24b607 100644 --- a/drivers/crypto/fsl/fsl_hash.c +++ b/drivers/crypto/fsl/fsl_hash.c @@ -131,25 +131,35 @@ static int caam_hash_update(void *hash_ctx, const void *buf, static int caam_hash_finish(void *hash_ctx, void *dest_buf, int size, enum caam_hash_algos caam_algo) { - uint32_t len = 0; + uint32_t len = 0, sg_entry_len; struct sha_ctx *ctx = hash_ctx; int i = 0, ret = 0; + caam_dma_addr_t addr;

if (size < driver_hash[caam_algo].digestsize) { return -EINVAL; }

- for (i = 0; i < ctx->sg_num; i++) - len += (sec_in32(&ctx->sg_tbl[i].len_flag) & - SG_ENTRY_LENGTH_MASK); - + flush_dcache_range((ulong)ctx->sg_tbl, + (ulong)(ctx->sg_tbl) + (ctx->sg_num * sizeof(struct sg_entry))); + for (i = 0; i < ctx->sg_num; i++) { + sg_entry_len = (sec_in32(&ctx->sg_tbl[i].len_flag) & + SG_ENTRY_LENGTH_MASK); + len += sg_entry_len; +#ifdef CONFIG_CAAM_64BIT + addr = sec_in32(&ctx->sg_tbl[i].addr_hi); + addr = (addr << 32) | sec_in32(&ctx->sg_tbl[i].addr_lo); +#else + addr = sec_in32(&ctx->sg_tbl[i].addr_lo); +#endif + flush_dcache_range(addr, addr + sg_entry_len); + } inline_cnstr_jobdesc_hash(ctx->sha_desc, (uint8_t *)ctx->sg_tbl, len, ctx->hash, driver_hash[caam_algo].alg_type, driver_hash[caam_algo].digestsize, 1);

- flush_dcache_range((ulong)ctx->sg_tbl, (ulong)(ctx->sg_tbl) + len); flush_dcache_range((ulong)ctx->sha_desc, (ulong)(ctx->sha_desc) + (sizeof(uint32_t) * MAX_CAAM_DESCSIZE)); flush_dcache_range((ulong)ctx->hash,