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 A017C3314C3 for ; Sat, 28 Feb 2026 17:53:42 +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=1772301222; cv=none; b=mGS86FF+nKhh6uOBOO+qHgMKveq/QdjZNdH7e7zAA4OsQmDmcNF4VyE7GlDuVa+7y5CB7s0IbYSgGC85cAHtUN1FT9M6qovHpHFkneI9R6wD1hV4DUH15FXnvRYLw4Ed+s6INuHSzplP3Mzy830zL7qWrWz3bjL9HA7zd+oQHLM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772301222; c=relaxed/simple; bh=f+9w+xIfsNKQxYYkTRobj6+SBwpLWJTstDUHok5rPqQ=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=fwIVin4gTRztjGtuz1t8FX9T+lrinhAHRPTJyyqLIkQI9ALJq879f7s8N2NIPKgvBoHBqjGApS11SyRKaHU0dW2xk0hzrKMLhGn4qRQ6Bec102uSaIjw83Th3jynphkAlGokIGcWp20G1i4SgZyU+p55f/KbL/CJRvq4IDipnjc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=iVi0qheU; 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="iVi0qheU" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0CC0CC19424; Sat, 28 Feb 2026 17:53:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772301222; bh=f+9w+xIfsNKQxYYkTRobj6+SBwpLWJTstDUHok5rPqQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=iVi0qheUhD7998G4RX8w29JnV5toQ1ozeUcq2SoxsqHr6ZdZCdHLIspcvCISpYJ04 JiBQWSGkNYv8sjkP4n556uaUP/ZSMPgllk2xALf27WohFSBLEb2mSH7avCY4hG1xX0 SsaYQ/V/P7x8w2sIpCjVMBFmODD3gHsByKhENQHJhg3hEWRUjbg0cPabJTSjSxKnNZ oiDakOWj7bWFP6dSY+hZAwvYvNcLs/SWHYDJAmE/lGGA3Yaz6kLaNCA4ZzueJY/tEB 5dSexJPrU9H8z67noRZtBzpfewPLaeHcr/53iyC/OTdI0k1kSrlPfW1eNJkx/ijFJl cbCzBYyI5AoRg== From: Sasha Levin To: patches@lists.linux.dev Cc: Matt Johnston , Corey Minyard , Sasha Levin Subject: [PATCH 6.18 399/752] ipmi: ipmb: initialise event handler read bytes Date: Sat, 28 Feb 2026 12:41:50 -0500 Message-ID: <20260228174750.1542406-399-sashal@kernel.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260228174750.1542406-1-sashal@kernel.org> References: <20260228174750.1542406-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: patches@lists.linux.dev 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