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authorWolfgang Denk <wd@denx.de>2011-02-11 12:25:48 +0000
committerAlbert Aribaud <albert.aribaud@free.fr>2011-02-21 08:30:55 +0100
commit495df3bad9f250a36470cce15f14c36c616172b6 (patch)
treecb5c1c1f3a4aab72b37538b527096fea076c3def /lib
parent6087f1a90cb2f275752496229b96f0e00aa0a7cd (diff)
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ARM: fix write*() I/O accessors
Commit 3c0659b "ARM: Avoid compiler optimization for readb, writeb and friends." introduced I/O accessors with memory barriers. Unfortunately the new write*() accessors introduced a bug: The problem is that the argument "v" gets evaluated twice. This breaks code like used here (from "drivers/net/dnet.c"): for (i = 0; i < wrsz; i++) writel(*bufp++, &dnet->regs->TX_DATA_FIFO); Use auxiliary variables to avoid such problems. Signed-off-by: Wolfgang Denk <wd@denx.de> Cc: Albert Aribaud <albert.aribaud@free.fr> Cc: Alexander Holler <holler@ahsoftware.de> Cc: Dirk Behme <dirk.behme@googlemail.com>
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