[PATCH] perf: riscv: skip empty batches in counter start

[Paul Walmsley]

On Mon, 4 Aug 2025, Yunhui Cui wrote:

> Avoid unnecessary SBI calls when starting non-overflowed counters
> in pmu_sbi_start_ovf_ctrs_sbi() by checking ctr_start_mask.
> 
> Signed-off-by: Yunhui Cui <cuiyunhui at bytedance.com>

Thanks, queued for v6.18.


- Paul