The prefix tag and subject imply that it is a bugfix. I think, first, it
should be a new feature with net-next tag. Also please use net/smc as
prefix.
Thanks,
Tony Lu
On Sat, Nov 18, 2023 at 07:51:00AM -0800, Yury Norov wrote:
> The function opencodes find_and_set_bit() with a for_each() loop. Fix
> it, and make the whole function a simple almost one-liner.
>
> Signed-off-by: Yury Norov <yury.norov@xxxxxxxxx>
> ---
> net/smc/smc_wr.c | 10 +++-------
> 1 file changed, 3 insertions(+), 7 deletions(-)
>
> diff --git a/net/smc/smc_wr.c b/net/smc/smc_wr.c
> index 0021065a600a..b6f0cfc52788 100644
> --- a/net/smc/smc_wr.c
> +++ b/net/smc/smc_wr.c
> @@ -170,15 +170,11 @@ void smc_wr_tx_cq_handler(struct ib_cq *ib_cq, void *cq_context)
>
> static inline int smc_wr_tx_get_free_slot_index(struct smc_link *link, u32 *idx)
> {
> - *idx = link->wr_tx_cnt;
> if (!smc_link_sendable(link))
> return -ENOLINK;
> - for_each_clear_bit(*idx, link->wr_tx_mask, link->wr_tx_cnt) {
> - if (!test_and_set_bit(*idx, link->wr_tx_mask))
> - return 0;
> - }
> - *idx = link->wr_tx_cnt;
> - return -EBUSY;
> +
> + *idx = find_and_set_bit(link->wr_tx_mask, link->wr_tx_cnt);
> + return *idx < link->wr_tx_cnt ? 0 : -EBUSY;
> }
>
> /**
> --
> 2.39.2
