This is an effort to get rid of all multiplications from allocation
functions in order to prevent integer overflows [1].
Here the multiplication is obviously safe because DMAR_LATENCY_NUM
is the number of latency types defined in the "latency_type" enum.
enum latency_type {
DMAR_LATENCY_INV_IOTLB = 0,
DMAR_LATENCY_INV_DEVTLB,
DMAR_LATENCY_INV_IEC,
DMAR_LATENCY_PRQ,
DMAR_LATENCY_NUM
};
However, using kcalloc() is more appropriate [2] and improves
readability. This patch has no effect on runtime behavior.
Link:https://github.com/KSPP/linux/issues/162 [1]
Link:https://www.kernel.org/doc/html/next/process/deprecated.html#open-coded-arithmetic-in-allocator-arguments [2]
Signed-off-by: Erick Archer<erick.archer@xxxxxxx>
---
drivers/iommu/intel/perf.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)