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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>
This commit is contained in:
Jussi Kivilinna 2012-07-30 15:42:36 +08:00 committed by Herbert Xu
parent 44a6b84421
commit 76f16f83ee
1 changed files with 2 additions and 2 deletions
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4
drivers/crypto/hifn_795x.c
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@ -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,