linux-kernel - Re: [PATCH] [v2] i3c: fix big-endian FIFO transfers

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Message-ID: <175909785772.1659314.16007344807551348138.b4-ty@bootlin.com>
Date: Mon, 29 Sep 2025 00:19:18 +0200
From: Alexandre Belloni <alexandre.belloni@...tlin.com>
To: Jorge Marques <jorge.marques@...log.com>,
	Wolfram Sang <wsa+renesas@...g-engineering.com>,
	Frank Li <Frank.Li@....com>, Arnd Bergmann <arnd@...nel.org>
Cc: Arnd Bergmann <arnd@...db.de>,
	Manikanta Guntupalli <manikanta.guntupalli@....com>,
	linux-i3c@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] [v2] i3c: fix big-endian FIFO transfers

On Wed, 24 Sep 2025 22:18:33 +0200, Arnd Bergmann wrote:
> Short MMIO transfers that are not a multiple of four bytes in size need
> a special case for the final bytes, however the existing implementation
> is not endian-safe and introduces an incorrect byteswap on big-endian
> kernels.
> 
> This usually does not cause problems because most systems are
> little-endian and most transfers are multiple of four bytes long, but
> still needs to be fixed to avoid the extra byteswap.
> 
> [...]

Applied, thanks!

[1/1] i3c: fix big-endian FIFO transfers
      https://git.kernel.org/i3c/c/d6ddd9beb1a5

Best regards,

-- 
Alexandre Belloni, co-owner and COO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com