Commit 76f16f83 authored Jul 30, 2012 by Jussi Kivilinna Committed by Herbert Xu Jul 30, 2012

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>

parent 44a6b844

drivers/crypto/hifn_795x.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -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,