From: Pratyush Yadav <pratyush@kernel.org>
To: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Cc: Tudor Ambarus <tudor.ambarus@linaro.org>,
Pratyush Yadav <pratyush@kernel.org>,
Michael Walle <mwalle@kernel.org>,
Miquel Raynal <miquel.raynal@bootlin.com>,
Richard Weinberger <richard@nod.at>,
Vignesh Raghavendra <vigneshr@ti.com>,
linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org,
linux-mtd@lists.infradead.org
Subject: Re: [PATCH] mtd: spi-nor: Constify struct spi_nor_fixups
Date: Tue, 27 May 2025 18:33:22 +0200 [thread overview]
Message-ID: <mafs0iklmrp2l.fsf@kernel.org> (raw)
In-Reply-To: <aa641732ba707ce3690217825c3ca7373ffde4f9.1748191985.git.christophe.jaillet@wanadoo.fr>
On Sun, May 25 2025, Christophe JAILLET wrote:
> 'struct spi_nor_fixups' are not modified in this driver.
>
> Constifying these structures moves some data to a read-only section, so
> increases overall security, especially when the structure holds some
> function pointers.
>
> On a x86_64, with allmodconfig, as an example:
> Before:
> ======
> text data bss dec hex filename
> 23304 13168 0 36472 8e78 drivers/mtd/spi-nor/micron-st.o
>
> After:
> =====
> text data bss dec hex filename
> 23560 12912 0 36472 8e78 drivers/mtd/spi-nor/micron-st.o
>
> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Pratyush Yadav <pratyush@kernel.org>
[...]
--
Regards,
Pratyush Yadav
WARNING: multiple messages have this Message-ID (diff)
From: Pratyush Yadav <pratyush@kernel.org>
To: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Cc: Tudor Ambarus <tudor.ambarus@linaro.org>,
Pratyush Yadav <pratyush@kernel.org>,
Michael Walle <mwalle@kernel.org>,
Miquel Raynal <miquel.raynal@bootlin.com>,
Richard Weinberger <richard@nod.at>,
Vignesh Raghavendra <vigneshr@ti.com>,
linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org,
linux-mtd@lists.infradead.org
Subject: Re: [PATCH] mtd: spi-nor: Constify struct spi_nor_fixups
Date: Tue, 27 May 2025 18:33:22 +0200 [thread overview]
Message-ID: <mafs0iklmrp2l.fsf@kernel.org> (raw)
In-Reply-To: <aa641732ba707ce3690217825c3ca7373ffde4f9.1748191985.git.christophe.jaillet@wanadoo.fr>
On Sun, May 25 2025, Christophe JAILLET wrote:
> 'struct spi_nor_fixups' are not modified in this driver.
>
> Constifying these structures moves some data to a read-only section, so
> increases overall security, especially when the structure holds some
> function pointers.
>
> On a x86_64, with allmodconfig, as an example:
> Before:
> ======
> text data bss dec hex filename
> 23304 13168 0 36472 8e78 drivers/mtd/spi-nor/micron-st.o
>
> After:
> =====
> text data bss dec hex filename
> 23560 12912 0 36472 8e78 drivers/mtd/spi-nor/micron-st.o
>
> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Pratyush Yadav <pratyush@kernel.org>
[...]
--
Regards,
Pratyush Yadav
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Linux MTD discussion mailing list
http://lists.infradead.org/mailman/listinfo/linux-mtd/
next prev parent reply other threads:[~2025-05-27 16:33 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-05-25 16:53 [PATCH] mtd: spi-nor: Constify struct spi_nor_fixups Christophe JAILLET
2025-05-25 16:53 ` Christophe JAILLET
2025-05-27 16:33 ` Pratyush Yadav [this message]
2025-05-27 16:33 ` Pratyush Yadav
2025-07-03 14:55 ` Pratyush Yadav
2025-07-03 14:55 ` Pratyush Yadav
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