linux-kernel - [PATCH 03/10] omap: iommu: fix wrong condition check for SUPERSECTION

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Date:	Thu, 22 Oct 2009 15:11:49 -0700
From:	Tony Lindgren <tony@...mide.com>
To:	linux-arm-kernel@...ts.infradead.org
Cc:	Srinivas Pulukuru <srinivas.pulukuru@...com>,
	linux-omap@...r.kernel.org, Hiroshi DOYU <Hiroshi.DOYU@...ia.com>,
	linux-kernel@...r.kernel.org
Subject: [PATCH 03/10] omap: iommu: fix wrong condition check for SUPERSECTION

From: Hiroshi DOYU <Hiroshi.DOYU@...ia.com>

A bit (2 << 0) is set both on SECTION and SUPERSECTION. To identify
SUPERSECTION correctly, other bits should be compared too.

Reported-by: "Srinivas Pulukuru" <srinivas.pulukuru@...com>
Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@...ia.com>
Signed-off-by: Tony Lindgren <tony@...mide.com>
---
 arch/arm/plat-omap/iommu.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/arm/plat-omap/iommu.c b/arch/arm/plat-omap/iommu.c
index 4b60127..94584f1 100644
--- a/arch/arm/plat-omap/iommu.c
+++ b/arch/arm/plat-omap/iommu.c
@@ -664,7 +664,7 @@ static size_t iopgtable_clear_entry_core(struct iommu *obj, u32 da)
 		nent = 1; /* for the next L1 entry */
 	} else {
 		bytes = IOPGD_SIZE;
-		if (*iopgd & IOPGD_SUPER) {
+		if ((*iopgd & IOPGD_SUPER) == IOPGD_SUPER) {
 			nent *= 16;
 			/* rewind to the 1st entry */
 			iopgd = (u32 *)((u32)iopgd & IOSUPER_MASK);

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