From 9f1167272890c210399e6b8a32d7cf7295713f5d Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Sat, 31 Mar 2007 12:58:20 +1000 Subject: [PATCH] [CRYPTO] api: Flush the current page right than the next On platforms where flush_dcache_page is needed we're currently flushing the next page right than the one we've just processed. This patch fixes the off-by-one error. Signed-off-by: Herbert Xu --- crypto/scatterwalk.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/crypto/scatterwalk.c b/crypto/scatterwalk.c index 0f76175f623f..81afd1790a1d 100644 --- a/crypto/scatterwalk.c +++ b/crypto/scatterwalk.c @@ -59,8 +59,12 @@ EXPORT_SYMBOL_GPL(scatterwalk_map); static void scatterwalk_pagedone(struct scatter_walk *walk, int out, unsigned int more) { - if (out) - flush_dcache_page(scatterwalk_page(walk)); + if (out) { + struct page *page; + + page = walk->sg->page + ((walk->offset - 1) >> PAGE_SHIFT); + flush_dcache_page(page); + } if (more) { walk->offset += PAGE_SIZE - 1; -- 2.20.1