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File linux-2.6.40-OMAP2-IOMMU-don-t-print-fault-warning-on-specific-la.patch of Package kernel-adaptation-n900
From 2589881e0da3fb45dafa946faa3b6313ee02a8bf Mon Sep 17 00:00:00 2001 From: David Cohen <dacohen@gmail.com> Date: Wed, 16 Feb 2011 19:35:50 +0000 Subject: [PATCH] OMAP2+: IOMMU: don't print fault warning on specific layer OMAP2+: IOMMU: don't print fault warning on specific layer IOMMU upper layer and user are responsible to handle a fault and to define whether it will end up as an error or not. OMAP2+ specific layer should not print anything in such case. Signed-off-by: David Cohen <dacohen@gmail.com> Acked-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com> --- arch/arm/mach-omap2/iommu2.c | 16 ---------------- 1 files changed, 0 insertions(+), 16 deletions(-) diff --git a/arch/arm/mach-omap2/iommu2.c b/arch/arm/mach-omap2/iommu2.c index 14ee686..49a1e5e 100644 --- a/arch/arm/mach-omap2/iommu2.c +++ b/arch/arm/mach-omap2/iommu2.c @@ -145,15 +145,7 @@ static void omap2_iommu_set_twl(struct iommu *obj, bool on) static u32 omap2_iommu_fault_isr(struct iommu *obj, u32 *ra) { - int i; u32 stat, da; - const char *err_msg[] = { - "tlb miss", - "translation fault", - "emulation miss", - "table walk fault", - "multi hit fault", - }; stat = iommu_read_reg(obj, MMU_IRQSTATUS); stat &= MMU_IRQ_MASK; @@ -163,14 +155,6 @@ static u32 omap2_iommu_fault_isr(struct iommu *obj, u32 *ra) da = iommu_read_reg(obj, MMU_FAULT_AD); *ra = da; - dev_err(obj->dev, "%s:\tda:%08x ", __func__, da); - - for (i = 0; i < ARRAY_SIZE(err_msg); i++) { - if (stat & (1 << i)) - printk("%s ", err_msg[i]); - } - printk("\n"); - iommu_write_reg(obj, stat, MMU_IRQSTATUS); return stat; -- 1.7.0.4