Messages in this thread Patch in this message | | | From | Suravee Suthikulpanit <> | Subject | [PATCH V6 5/7] perf/amd/iommu: Clean up perf_iommu_enable_event | Date | Fri, 23 Dec 2016 20:38:48 +0700 |
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This patch cleans up: * Various bitwise operations in perf_iommu_enable_event * Make use macros BIT(x)
This should not affect logic and functionality.
Cc: Peter Zijlstra <peterz@infradead.org> Cc: Borislav Petkov <bp@alien8.de> Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> --- arch/x86/events/amd/iommu.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/arch/x86/events/amd/iommu.c b/arch/x86/events/amd/iommu.c index 9bff41d..2403c78 100644 --- a/arch/x86/events/amd/iommu.c +++ b/arch/x86/events/amd/iommu.c @@ -258,21 +258,21 @@ static void perf_iommu_enable_event(struct perf_event *ev) amd_iommu_pc_set_reg(0, devid, bank, cntr, IOMMU_PC_COUNTER_SRC_REG, ®); - reg = 0ULL | devid | (_GET_DEVID_MASK(ev) << 32); + reg = devid | (_GET_DEVID_MASK(ev) << 32); if (reg) - reg |= (1UL << 31); + reg |= BIT(31); amd_iommu_pc_set_reg(0, devid, bank, cntr, IOMMU_PC_DEVID_MATCH_REG, ®); - reg = 0ULL | _GET_PASID(ev) | (_GET_PASID_MASK(ev) << 32); + reg = _GET_PASID(ev) | (_GET_PASID_MASK(ev) << 32); if (reg) - reg |= (1UL << 31); + reg |= BIT(31); amd_iommu_pc_set_reg(0, devid, bank, cntr, IOMMU_PC_PASID_MATCH_REG, ®); - reg = 0ULL | _GET_DOMID(ev) | (_GET_DOMID_MASK(ev) << 32); + reg = _GET_DOMID(ev) | (_GET_DOMID_MASK(ev) << 32); if (reg) - reg |= (1UL << 31); + reg |= BIT(31); amd_iommu_pc_set_reg(0, devid, bank, cntr, IOMMU_PC_DOMID_MATCH_REG, ®); } -- 1.8.3.1
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