[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [PATCH] iommu/arm: ipmmu-vmsa: Use 1U << 31 rather than 1 << 31
From: Oleksandr Tyshchenko <oleksandr_tyshchenko@xxxxxxxx> Replace all the use of 1 << 31 with 1U << 31 to prevent undefined behavior in the IPMMU-VMSA driver. Signed-off-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@xxxxxxxx> --- This is a follow-up to https://patchew.org/Xen/20201224152419.22453-1-julien@xxxxxxx/ --- xen/drivers/passthrough/arm/ipmmu-vmsa.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/xen/drivers/passthrough/arm/ipmmu-vmsa.c b/xen/drivers/passthrough/arm/ipmmu-vmsa.c index 346165c..aef358d 100644 --- a/xen/drivers/passthrough/arm/ipmmu-vmsa.c +++ b/xen/drivers/passthrough/arm/ipmmu-vmsa.c @@ -187,7 +187,7 @@ static DEFINE_SPINLOCK(ipmmu_devices_lock); #define IMCAAR 0x0004 #define IMTTBCR 0x0008 -#define IMTTBCR_EAE (1 << 31) +#define IMTTBCR_EAE (1U << 31) #define IMTTBCR_PMB (1 << 30) #define IMTTBCR_SH1_NON_SHAREABLE (0 << 28) #define IMTTBCR_SH1_OUTER_SHAREABLE (2 << 28) @@ -251,7 +251,7 @@ static DEFINE_SPINLOCK(ipmmu_devices_lock); #define IMUCTR(n) ((n) < 32 ? IMUCTR0(n) : IMUCTR32(n)) #define IMUCTR0(n) (0x0300 + ((n) * 16)) #define IMUCTR32(n) (0x0600 + (((n) - 32) * 16)) -#define IMUCTR_FIXADDEN (1 << 31) +#define IMUCTR_FIXADDEN (1U << 31) #define IMUCTR_FIXADD_MASK (0xff << 16) #define IMUCTR_FIXADD_SHIFT 16 #define IMUCTR_TTSEL_MMU(n) ((n) << 4) -- 2.7.4
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