linux-kernel - Re: [PATCH] mtd: spi-nor: swp: check SR_TB flag when getting tb

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Message-Id: <DGAD1M64X2PO.3CLYHIAZQRLI7@kernel.org>
Date: Mon, 09 Feb 2026 11:31:25 +0100
From: "Michael Walle" <mwalle@...nel.org>
To: "Shiji Yang" <yangshiji66@...look.com>, <linux-mtd@...ts.infradead.org>
Cc: "Tudor Ambarus" <tudor.ambarus@...aro.org>, "Pratyush Yadav"
 <pratyush@...nel.org>, "Miquel Raynal" <miquel.raynal@...tlin.com>,
 "Richard Weinberger" <richard@....at>, "Vignesh Raghavendra"
 <vigneshr@...com>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] mtd: spi-nor: swp: check SR_TB flag when getting
 tb_mask

On Wed Jan 28, 2026 at 1:42 PM CET, Shiji Yang wrote:
> When the chip does not support top/bottom block protect, the tb_mask
> must be set to 0, otherwise SR1 bit5 will be unexpectedly modified.
>
> Signed-off-by: Shiji Yang <yangshiji66@...look.com>

It goes all the way back to the very first commit..

Fixes: 3dd8012a8eeb ("mtd: spi-nor: add TB (Top/Bottom) protect support")
Reviewed-by: Michael Walle <mwalle@...nel.org>

-michael

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