linux-kernel - Re: [PATCH v3] mtd: rawnand: qcom: Fix broken misc_cmd_type in exec

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Date: Wed, 3 Apr 2024 09:23:56 +0200
From: Miquel Raynal <miquel.raynal@...tlin.com>
To: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
Cc: Christian Marangi <ansuelsmth@...il.com>, Richard Weinberger
 <richard@....at>, Vignesh Raghavendra <vigneshr@...com>, Sricharan
 Ramabadhran <quic_srichara@...cinc.com>, Md Sadre Alam
 <quic_mdalam@...cinc.com>, linux-mtd@...ts.infradead.org,
 linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
 stable@...r.kernel.org
Subject: Re: [PATCH v3] mtd: rawnand: qcom: Fix broken misc_cmd_type in
 exec_op

Hi,

manivannan.sadhasivam@...aro.org wrote on Wed, 3 Apr 2024 12:00:08
+0530:

> On Tue, Apr 02, 2024 at 11:41:34PM +0200, Christian Marangi wrote:
> > misc_cmd_type in exec_op have multiple problems. With commit a82990c8a409
> > ("mtd: rawnand: qcom: Add read/read_start ops in exec_op path") it was
> > reworked and generalized but actually dropped the handling of the
> > OP_RESET_DEVICE command.
> > 
> > The rework itself was correct with supporting case where a single misc
> > command is handled, but became problematic by the addition of exiting
> > early if we didn't had an OP_BLOCK_ERASE or an OP_PROGRAM_PAGE operation.
> > 
> > Also additional logic was added without clear explaination causing the
> > OP_RESET_DEVICE command to be broken on testing it on a ipq806x nandc.
> > 
> > Add some additional logic to restore OP_RESET_DEVICE command handling
> > restoring original functionality.
> >   
> 
> I'd like to reword the commit subject and description as below. But I hope
> Miquel can ammend it while applying:

I'm pretty busy, sending a v4 on which you both agree on would be
simpler to me :-)

Thanks,
Miquèl