linux-kernel - Re: [PATCH rdma-next 3/7] RDMA/core: Remove protection from wrong in-kernel API usage

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Message-ID: <YPfBiDdghnRwSjwG@infradead.org>
Date:   Wed, 21 Jul 2021 07:41:12 +0100
From:   Christoph Hellwig <hch@...radead.org>
To:     Leon Romanovsky <leon@...nel.org>
Cc:     Doug Ledford <dledford@...hat.com>,
        Jason Gunthorpe <jgg@...dia.com>,
        Leon Romanovsky <leonro@...dia.com>,
        linux-kernel@...r.kernel.org, linux-rdma@...r.kernel.org,
        Mark Zhang <markz@...lanox.com>
Subject: Re: [PATCH rdma-next 3/7] RDMA/core: Remove protection from wrong
 in-kernel API usage

On Wed, Jul 21, 2021 at 09:13:02AM +0300, Leon Romanovsky wrote:
> From: Leon Romanovsky <leonro@...dia.com>
> 
> The ib_create_named_qp() is kernel verb that is not used for user
> supplied attributes. In such case, it is ULP responsibility to provide
> valid QP attributes.
> 
> In-kernel API shouldn't check it, exactly like other functions that
> don't check device capabilities.

Hmm.  These still looks like useful debugging checks.