diff options
| author | Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com> | 2021-01-11 12:33:55 +0200 |
|---|---|---|
| committer | Stefano Stabellini <sstabellini@kernel.org> | 2021-01-11 16:31:15 -0800 |
| commit | 0e97d99f0e9fc627f29680d20d2619184c894f14 (patch) | |
| tree | 2235466489f7cd9bc3f3c0b73c6fc1da5c27aa61 | |
| parent | 17b2ddf07a1b31c8c7ed96014772a0729e1460ac (diff) | |
iommu/arm: ipmmu-vmsa: Use 1U << 31 rather than 1 << 31
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@epam.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
| -rw-r--r-- | xen/drivers/passthrough/arm/ipmmu-vmsa.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/xen/drivers/passthrough/arm/ipmmu-vmsa.c b/xen/drivers/passthrough/arm/ipmmu-vmsa.c index 346165c3fa..aef358d880 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) |