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SubjectRe: [PATCH v2 8/8] IB/mlx5: Add helper mlx5_ib_post_send_wait
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On Tuesday, October 25, 2016 5:31:59 PM CEST Binoy Jayan wrote:
> Clean up common code (to post a list of work requests to the send queue of
> the specified QP) at various places and add a helper function
> 'mlx5_ib_post_send_wait' to implement the same. The counting semaphore
> 'umr_common:sem' is also moved into the helper. This may later be modified
> to replace the semaphore with an alternative.
>
> Signed-off-by: Binoy Jayan <binoy.jayan@linaro.org>

Looks reasonable.

> ---
> drivers/infiniband/hw/mlx5/mr.c | 96 +++++++++++++----------------------------
> 1 file changed, 29 insertions(+), 67 deletions(-)
>
> diff --git a/drivers/infiniband/hw/mlx5/mr.c b/drivers/infiniband/hw/mlx5/mr.c
> index d4ad672..261984b 100644
> --- a/drivers/infiniband/hw/mlx5/mr.c
> +++ b/drivers/infiniband/hw/mlx5/mr.c
> @@ -856,16 +856,38 @@ static inline void mlx5_ib_init_umr_context(struct mlx5_ib_umr_context *context)
> init_completion(&context->done);
> }
>
> +static inline int mlx5_ib_post_send_wait(struct mlx5_ib_dev *dev,
> + struct mlx5_ib_umr_context *umr_context,
> + struct mlx5_umr_wr *umrwr)
> +{
> + struct umr_common *umrc = &dev->umrc;
> + struct ib_send_wr __maybe_unused *bad;

Did you get a warning about 'bad' being unused here? I would have
guessed not, since the original code was not that different and
it does get passed into a function.

Why not move the umr_context variable into this function too?
The only thing we ever seem to do to is initialize it and
assign the wr_cqe pointer, both of which can be done here.

Arnd

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