crypto: hifn_795x - fix 64bit division and undefined __divdi3 on 32bit archs

Commit feb7b7ab928afa97a79a9c424e4e0691f49d63be changed NSEC_PER_SEC to 64-bit
constant, which causes "DIV_ROUND_UP(NSEC_PER_SEC, dev->pk_clk_freq)" to
generate __divdi3 call on 32-bit archs. Fix this by changing DIV_ROUND_UP to
DIV_ROUND_UP_ULL.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Acked-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/drivers/crypto/hifn_795x.c b/drivers/crypto/hifn_795x.c
index c9c4befb5a8d261701698c570c668d5009113a64..df14358d7fa1658c48e10d8b7a768f32eec6b9ac 100644 (file)
--- a/drivers/crypto/hifn_795x.c
+++ b/drivers/crypto/hifn_795x.c
@@ -821,8 +821,8 @@ static int hifn_register_rng(struct hifn_device *dev)
        /*
         * We must wait at least 256 Pk_clk cycles between two reads of the rng.
         */
-       dev->rng_wait_time      = DIV_ROUND_UP(NSEC_PER_SEC, dev->pk_clk_freq) *
-                                 256;
+       dev->rng_wait_time      = DIV_ROUND_UP_ULL(NSEC_PER_SEC,
+                                                  dev->pk_clk_freq) * 256;
 
        dev->rng.name           = dev->name;
        dev->rng.data_present   = hifn_rng_data_present,