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 078DA125AC; Sat, 3 Feb 2024 04:13:12 +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=1706933592; cv=none; b=R8+lT86GrV8H5BXMU5YHRgGmSq9fqpdu3c0sD7An7OKtXP0b2SHv3It6/+90y8ynMbav/gr5iW957GVXWSx0U2w6H7+oyd/QxyLz5+yJt1N9QdPQRrDRKOtmlJ6uwvFXNGnPpY09CJClx8wmGg13BSkIycTN3JaGF3lvPrSvCnE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706933592; c=relaxed/simple; bh=1QY1PCqExVAL3G9SXXKgtsWdthnZ2dEZntvukfdt/zc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=ofufKupmaEWX5yWeMZxgSWeGeD/VwbhIWSqs9tFLXb2+VZ+UgCFO5hypmSAwWbfKmTOvOB54QfzdJcs0/zrdE6H/f78mmoktjNrP/8V/Dfxo/rGzk6rrDWmzDowdIzuSvho4O4k0Aj3j4hM+mW9nFwmm3LdCS6MibUna9Sk4v/c= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=jWMNZ3Zj; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="jWMNZ3Zj" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C69A1C433C7; Sat, 3 Feb 2024 04:13:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1706933591; bh=1QY1PCqExVAL3G9SXXKgtsWdthnZ2dEZntvukfdt/zc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=jWMNZ3ZjFDv8gAJ7hCaehFOxd/ZXDMMpDWTHDdm6i5dSGhBqJR/2T7ELIuPBx3sSm ie+06ulS3j/+GscEOVxVWuK7jlZoxteJDXy5J3/+kr9TIuyfwUMsODS/3cXsPgYqcZ mwTjc04D81u8vz31e4sOY8zPnYIXvcOi9i0YPkXs= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Vladimir Oltean , Florian Fainelli , Tobias Waldekranz , "David S. Miller" , Sasha Levin Subject: [PATCH 6.6 132/322] net: dsa: mv88e6xxx: Fix mv88e6352_serdes_get_stats error path Date: Fri, 2 Feb 2024 20:03:49 -0800 Message-ID: <20240203035403.413893997@linuxfoundation.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240203035359.041730947@linuxfoundation.org> References: <20240203035359.041730947@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Tobias Waldekranz [ Upstream commit fc82a08ae795ee6b73fb6b50785f7be248bec7b5 ] mv88e6xxx_get_stats, which collects stats from various sources, expects all callees to return the number of stats read. If an error occurs, 0 should be returned. Prevent future mishaps of this kind by updating the return type to reflect this contract. Reviewed-by: Vladimir Oltean Reviewed-by: Florian Fainelli Signed-off-by: Tobias Waldekranz Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- drivers/net/dsa/mv88e6xxx/chip.h | 4 ++-- drivers/net/dsa/mv88e6xxx/serdes.c | 10 +++++----- drivers/net/dsa/mv88e6xxx/serdes.h | 8 ++++---- 3 files changed, 11 insertions(+), 11 deletions(-) diff --git a/drivers/net/dsa/mv88e6xxx/chip.h b/drivers/net/dsa/mv88e6xxx/chip.h index 44383a03ef2f..c54d305a1d83 100644 --- a/drivers/net/dsa/mv88e6xxx/chip.h +++ b/drivers/net/dsa/mv88e6xxx/chip.h @@ -601,8 +601,8 @@ struct mv88e6xxx_ops { int (*serdes_get_sset_count)(struct mv88e6xxx_chip *chip, int port); int (*serdes_get_strings)(struct mv88e6xxx_chip *chip, int port, uint8_t *data); - int (*serdes_get_stats)(struct mv88e6xxx_chip *chip, int port, - uint64_t *data); + size_t (*serdes_get_stats)(struct mv88e6xxx_chip *chip, int port, + uint64_t *data); /* SERDES registers for ethtool */ int (*serdes_get_regs_len)(struct mv88e6xxx_chip *chip, int port); diff --git a/drivers/net/dsa/mv88e6xxx/serdes.c b/drivers/net/dsa/mv88e6xxx/serdes.c index 3b4b42651fa3..01ea53940786 100644 --- a/drivers/net/dsa/mv88e6xxx/serdes.c +++ b/drivers/net/dsa/mv88e6xxx/serdes.c @@ -177,8 +177,8 @@ static uint64_t mv88e6352_serdes_get_stat(struct mv88e6xxx_chip *chip, return val; } -int mv88e6352_serdes_get_stats(struct mv88e6xxx_chip *chip, int port, - uint64_t *data) +size_t mv88e6352_serdes_get_stats(struct mv88e6xxx_chip *chip, int port, + uint64_t *data) { struct mv88e6xxx_port *mv88e6xxx_port = &chip->ports[port]; struct mv88e6352_serdes_hw_stat *stat; @@ -187,7 +187,7 @@ int mv88e6352_serdes_get_stats(struct mv88e6xxx_chip *chip, int port, err = mv88e6352_g2_scratch_port_has_serdes(chip, port); if (err <= 0) - return err; + return 0; BUILD_BUG_ON(ARRAY_SIZE(mv88e6352_serdes_hw_stats) > ARRAY_SIZE(mv88e6xxx_port->serdes_stats)); @@ -429,8 +429,8 @@ static uint64_t mv88e6390_serdes_get_stat(struct mv88e6xxx_chip *chip, int lane, return reg[0] | ((u64)reg[1] << 16) | ((u64)reg[2] << 32); } -int mv88e6390_serdes_get_stats(struct mv88e6xxx_chip *chip, int port, - uint64_t *data) +size_t mv88e6390_serdes_get_stats(struct mv88e6xxx_chip *chip, int port, + uint64_t *data) { struct mv88e6390_serdes_hw_stat *stat; int lane; diff --git a/drivers/net/dsa/mv88e6xxx/serdes.h b/drivers/net/dsa/mv88e6xxx/serdes.h index aac95cab46e3..ff5c3ab31e15 100644 --- a/drivers/net/dsa/mv88e6xxx/serdes.h +++ b/drivers/net/dsa/mv88e6xxx/serdes.h @@ -127,13 +127,13 @@ unsigned int mv88e6390_serdes_irq_mapping(struct mv88e6xxx_chip *chip, int mv88e6352_serdes_get_sset_count(struct mv88e6xxx_chip *chip, int port); int mv88e6352_serdes_get_strings(struct mv88e6xxx_chip *chip, int port, uint8_t *data); -int mv88e6352_serdes_get_stats(struct mv88e6xxx_chip *chip, int port, - uint64_t *data); +size_t mv88e6352_serdes_get_stats(struct mv88e6xxx_chip *chip, int port, + uint64_t *data); int mv88e6390_serdes_get_sset_count(struct mv88e6xxx_chip *chip, int port); int mv88e6390_serdes_get_strings(struct mv88e6xxx_chip *chip, int port, uint8_t *data); -int mv88e6390_serdes_get_stats(struct mv88e6xxx_chip *chip, int port, - uint64_t *data); +size_t mv88e6390_serdes_get_stats(struct mv88e6xxx_chip *chip, int port, + uint64_t *data); int mv88e6352_serdes_get_regs_len(struct mv88e6xxx_chip *chip, int port); void mv88e6352_serdes_get_regs(struct mv88e6xxx_chip *chip, int port, void *_p); -- 2.43.0