linux-kernel - [PATCH 2/5] swiotlb: fix compile warning

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Message-Id: <1237930126-6741-3-git-send-email-beckyb@kernel.crashing.org>
Date:	Tue, 24 Mar 2009 16:28:43 -0500
From:	Becky Bruce <beckyb@...nel.crashing.org>
To:	linux-kernel@...r.kernel.org
Cc:	mingo@...e.hu, fujita.tomonori@....ntt.co.jp,
	ian.campbell@...rix.com, jeremy@...p.org,
	Becky Bruce <beckyb@...nel.crashing.org>
Subject: [PATCH 2/5] swiotlb: fix compile warning

Squash a build warning seen on 32-bit powerpc caused by calling min()
with 2 different types.  Cast the first arg to size_t, which is the
type of the second, and should be portable across architectures.

Signed-off-by: Becky Bruce <beckyb@...nel.crashing.org>
---
 lib/swiotlb.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index f59cf30..62f5f75 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -341,7 +341,7 @@ static void swiotlb_bounce(phys_addr_t phys, char *dma_addr, size_t size,
 		unsigned long flags;
 
 		while (size) {
-			sz = min(PAGE_SIZE - offset, size);
+			sz = min((size_t)(PAGE_SIZE - offset), size);
 
 			local_irq_save(flags);
 			buffer = kmap_atomic(pfn_to_page(pfn),
-- 
1.5.6.6

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