linux-kernel - Re: [PATCH] qla2xxx: Do not consume srb greedily

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Message-ID: <20201005074254.2f5vgauk5tfwad35@beryllium.lan>
Date:   Mon, 5 Oct 2020 09:42:54 +0200
From:   Daniel Wagner <dwagner@...e.de>
To:     Nilesh Javali <njavali@...vell.com>, Arun Easi <aeasi@...vell.com>
Cc:     linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] qla2xxx: Do not consume srb greedily

On Tue, Sep 29, 2020 at 09:38:02AM +0200, Daniel Wagner wrote:
> qla2xx_process_get_sp_from_handle() will clear the slot which the
> current srb is stored. So this function has a side effect. Therefore,
> we can't use it in qla24xx_process_mbx_iocb_response() to check
> for consistency and later again in qla24xx_mbx_iocb_entry().
> 
> Let's move the consistency check directly into
> qla24xx_mbx_iocb_entry() and avoid the double call or any open coding
> of the qla2xx_process_get_sp_from_handle() functionality.
> 
> Fixes: 31a3271ff11b ("scsi: qla2xxx: Handle incorrect entry_type entries")
> Signed-off-by: Daniel Wagner <dwagner@...e.de>
> ---
> Hi,
> 
> Brown bag for me please. My test patch had an open coded version of
> qla2xx_process_get_sp_from_handle() which didn't consume the srb. When
> I prepared it for sending it out, I 'cleaned' it up by using
> qla2xx_process_get_sp_from_handle() twice.

Ping.