From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 C34D23CEAFC; Sat, 28 Feb 2026 17:40:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772300411; cv=none; b=Okogn+HynCrnpx5jKBxyzLZAX85HWqH5mqQ67h9gffQIaj2h3PGTQ7lrgwNyyvHtOgoHlhYuSrja9j2AJxQEYWj7Y4koixzycDjAMtbykvUSSk23UL2yt+9NYeX3ghpd4qhnfHrUR3AbbrO+cbkUfgX5a7X0xpT/3w6uiMQQLhc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772300411; c=relaxed/simple; bh=f+9w+xIfsNKQxYYkTRobj6+SBwpLWJTstDUHok5rPqQ=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=JpbhCpZdXWOLLKcD2NUyNDTa4GIc1AHLos6QZwXWmS/1HmTy6g5wwylcfcSWvs7EH3AiHLG4kMamcr8Gp2OHgxx07jWek7zFqvFDRPO18jxwB/NR7CZT7MHxS2YIkishD2JLb5TccCDb/gYltn3Es24DbXj+BMYyISFjQGFcufk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=GM/tx2LT; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="GM/tx2LT" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1B5E7C19423; Sat, 28 Feb 2026 17:40:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772300411; bh=f+9w+xIfsNKQxYYkTRobj6+SBwpLWJTstDUHok5rPqQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=GM/tx2LT9fgAV2sudR7/Vze15lqiJK/qgRpzHA0k8RPCvCLEKaAq8ytMs5UNDBvTm c5+feLtVZ+vNL1KWJ37x4hdbLFolOrwLAk144G4OOIs7OuCb2/QrpwkziDTVNMDNGL MNCKCHT6j0D2m10Q3cX3Vnh2xr0tySZm4za+6B6oGc5PlIGBs3jxAO1a92xWGgz5Eu OozckL7GYM1oEukJjkT0hat8fJCEs5xYXy9Z5CYD2ehFFC9Eh2Kej56z/kKR+nrCE8 PK31YutYbaFM3q11OutsIN+2LEvlwrnbT+8xwyXK8FlK8ly4CD3WNJT4MQxS0fETrP laTQFsVxAehbg== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Matt Johnston , Corey Minyard , Sasha Levin Subject: [PATCH 6.19 449/844] ipmi: ipmb: initialise event handler read bytes Date: Sat, 28 Feb 2026 12:26:02 -0500 Message-ID: <20260228173244.1509663-450-sashal@kernel.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260228173244.1509663-1-sashal@kernel.org> References: <20260228173244.1509663-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit From: Matt Johnston [ Upstream commit 9f235ccecd03c436cb1683eac16b12f119e54aa9 ] IPMB doesn't use i2c reads, but the handler needs to set a value. Otherwise an i2c read will return an uninitialised value from the bus driver. Fixes: 63c4eb347164 ("ipmi:ipmb: Add initial support for IPMI over IPMB") Signed-off-by: Matt Johnston Message-ID: <20260113-ipmb-read-init-v1-1-a9cbce7b94e3@codeconstruct.com.au> Signed-off-by: Corey Minyard Signed-off-by: Sasha Levin --- drivers/char/ipmi/ipmi_ipmb.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/char/ipmi/ipmi_ipmb.c b/drivers/char/ipmi/ipmi_ipmb.c index 3a51e58b24875..28818952a7a4b 100644 --- a/drivers/char/ipmi/ipmi_ipmb.c +++ b/drivers/char/ipmi/ipmi_ipmb.c @@ -202,11 +202,16 @@ static int ipmi_ipmb_slave_cb(struct i2c_client *client, break; case I2C_SLAVE_READ_REQUESTED: + *val = 0xff; + ipmi_ipmb_check_msg_done(iidev); + break; + case I2C_SLAVE_STOP: ipmi_ipmb_check_msg_done(iidev); break; case I2C_SLAVE_READ_PROCESSED: + *val = 0xff; break; } -- 2.51.0