Re: [PATCH v2 05/15] IB/pvrdma: Add UAR support

On 7/18/16 6:25 AM, Leon Romanovsky wrote:

quoted

+int pvrdma_uar_table_init(struct pvrdma_dev *dev)
+{
+	u32 num = dev->dsr->caps.max_uar;
+	u32 mask = num - 1;
+	struct pvrdma_id_table *tbl = &dev->uar_table.tbl;
+
+	/* Power of 2 */
+	if (num != 1 << (ffs(num) - 1))
+		return -EINVAL;

Can functions/macros defined in include/linux/log2.h replace the code
above?

I guess I can replace the ffs stuff with is_power_of_2 from log2.h.

Thanks,
Adit
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