From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail.zeus03.de (zeus03.de [194.117.254.33]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id AA0F9366054 for ; Thu, 28 May 2026 21:52:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=194.117.254.33 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780005136; cv=none; b=Yd6oq4s+tAyOfNk114SS97TLFQ9X6UVAOYSFYoHXmupp6sIc4GZuJkETDDt7+KFWCcRZOGrcE0SOLWcWExUQ6a199anHXBRyVyJ09KMEGGKHPzUXQYO1oQ4zd7ajJthmCoI7vzOgbrR1EqXGWaPgPEpARhf5OfUwl1K8riArHvE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780005136; c=relaxed/simple; bh=2F+j0yjjKa5C9dAP9Ns0/QJnSc6q89Sh7XgQRq3vbww=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=E1yyoVGjdgX81hXUyybjmvJCjBCdg6lv8RW4F38e0Qk+9aOcnzafA08Uo31s1tlQ8Oe4+Qt7UfYN+BGxBOvG1uzM7Y43tUUgNEwX48By73rNcU2aJ1jXCMMTV9PDQG0rpRII16KfYz8sZ9ZpxWkeqKe6la8uPfhIUoFMn8mISdc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=sang-engineering.com; spf=pass smtp.mailfrom=sang-engineering.com; dkim=pass (2048-bit key) header.d=sang-engineering.com header.i=@sang-engineering.com header.b=F1rHcz29; arc=none smtp.client-ip=194.117.254.33 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=sang-engineering.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=sang-engineering.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=sang-engineering.com header.i=@sang-engineering.com header.b="F1rHcz29" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= sang-engineering.com; h=date:from:to:cc:subject:message-id :references:mime-version:content-type:in-reply-to; s=k1; bh=2F+j 0yjjKa5C9dAP9Ns0/QJnSc6q89Sh7XgQRq3vbww=; b=F1rHcz29bQNGYtLUU4lT CH3IFtUzM7T/h5JZmpj4vBYIF+5wVc7NQ+Dg3STPX2RJVhLMb2vmRcEwrhAlcS8T 8xzGdAo102gJvkZqrdoINUyI9SuAHk7CSG80WNhneOE4ooB9aHHFh9igkhuZWmJK hzzX/dikz6risLe/Lej8yufsD1XnyvigrMR9nMjkYmhdFI0bop5VlrtkJ0mLdb0f D8TqRY+19k+okPoJnJm3D+KOixDgB+VaIP/G+PCKgbmi6lHokm6a85nJ+HdTouJX xjZmLoQlvokF6T/W7FX5ZEQATOEbkrPZg9c8hEdZ+PC8c9AlywOBHDU4zmsnojX+ ew== Received: (qmail 1173576 invoked from network); 28 May 2026 23:52:09 +0200 Received: by mail.zeus03.de with ESMTPSA (TLS_AES_256_GCM_SHA384 encrypted, authenticated); 28 May 2026 23:52:09 +0200 X-UD-Smtp-Session: l3s3148p1@3upmvedS35eSAB9x Date: Thu, 28 May 2026 23:52:08 +0200 From: Wolfram Sang To: Claudiu Beznea Cc: chris.brandt@renesas.com, andi.shyti@kernel.org, claudiu.beznea@tuxon.dev, linux-renesas-soc@vger.kernel.org, linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 1/4] i2c: riic: Abort the transfer on completion timeout Message-ID: References: <20260520131206.932050-1-claudiu.beznea@kernel.org> <20260520131206.932050-2-claudiu.beznea@kernel.org> <88d1db83-1127-462f-9b1a-7c18a7087960@kernel.org> Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="nRsRy12VV0keRsmN" Content-Disposition: inline In-Reply-To: <88d1db83-1127-462f-9b1a-7c18a7087960@kernel.org> --nRsRy12VV0keRsmN Content-Type: text/plain; charset=us-ascii Content-Disposition: inline > I haven't managed to reproduce it on i2c. I reproduced a similar behavior > while working on renesas-i3c driver and decided to implement this on this > i2c driver as well. I think the issue is real, but I am not convinced the solution is complete without a verified testcase. Maybe it is not too hard to test: you could hack the timeout to be lower and then write a block of data to an EEPROM. Its erase cycle can trigger the timeout then... --nRsRy12VV0keRsmN Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEOZGx6rniZ1Gk92RdFA3kzBSgKbYFAmoYuQQACgkQFA3kzBSg Kbbkyw/+IcsUjXR8Y/aSpYuTetobIhIAoTvQ6GoX82xQ3c2ywJ1U5moJxEjDTI29 3N/VUrlzRfr09MeQ1PZLTtiu54mwxQNWRgenRZaNoK4Vtq0M8WjH+TXjSO3omiBc SOkPSek2kNOwHOmQI3s0nT4obabCq6ZezOmgXzkcoyACHr9fO7San5h5x9var8Y4 9NyJS9F39fgRLhTTdSr85fAAh1iz0czTooirvNnSqOHb9DpJyDYim2d0cZMWBqMC pERCqIjfznvU5MQNjtLGPePo5XkHwTtU2sZ2F6doWNWbHORKPQuKDX+iZi++Rr2f cevfh+fQaWgNtdI5i1eru4L8tWPdU6kUq1bUYuO4ym2AY1byk5W4BXTcYoCC2/Nt qiBPPd5ez4jYFH0KEYstHHOjtyCJ1AV89X02Ux9Z43Jplgytv7Ky5CZ72D/LnCCo 77cgZjT1ffjnC3elKuOBBfhr4v7fup+dJ1W9LEris96xssV6LCDqzUVWY/fDSdDU aFHUHR4sq24B2G6JDWLhxmTK43S8Rqskj57Y9OvwC7yWVLb8pKv6r+YqphCcEEts rHkzATd2ovPaNvXPLFJATa1jkJAQDCW//rEM7/zREBZ09dA4s9AplWEB+JTljgsj ECxpZ6eNUiRrdLQUirkFnicGwqVbqlKAkeyjlP9+1gUw8ALDgWU= =qRLb -----END PGP SIGNATURE----- --nRsRy12VV0keRsmN--