From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Tobias Waldekranz <tobias@waldekranz.com>,
Vladimir Oltean <vladimir.oltean@nxp.com>,
Florian Fainelli <florian.fainelli@broadcom.com>,
"David S . Miller" <davem@davemloft.net>,
Sasha Levin <sashal@kernel.org>,
andrew@lunn.ch, f.fainelli@gmail.com, olteanv@gmail.com,
edumazet@google.com, kuba@kernel.org, pabeni@redhat.com,
netdev@vger.kernel.org
Subject: [PATCH AUTOSEL 5.10 32/44] net: dsa: mv88e6xxx: Fix mv88e6352_serdes_get_stats error path
Date: Tue, 16 Jan 2024 15:00:01 -0500 [thread overview]
Message-ID: <20240116200044.258335-32-sashal@kernel.org> (raw)
In-Reply-To: <20240116200044.258335-1-sashal@kernel.org>
From: Tobias Waldekranz <tobias@waldekranz.com>
[ 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 <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/dsa/mv88e6xxx/chip.h | 4 ++--
drivers/net/dsa/mv88e6xxx/serdes.c | 8 ++++----
drivers/net/dsa/mv88e6xxx/serdes.h | 8 ++++----
3 files changed, 10 insertions(+), 10 deletions(-)
diff --git a/drivers/net/dsa/mv88e6xxx/chip.h b/drivers/net/dsa/mv88e6xxx/chip.h
index 51a7ff44478e..67e52c481504 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.h
+++ b/drivers/net/dsa/mv88e6xxx/chip.h
@@ -536,8 +536,8 @@ 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 6920e62c864d..9494d75eec62 100644
--- a/drivers/net/dsa/mv88e6xxx/serdes.c
+++ b/drivers/net/dsa/mv88e6xxx/serdes.c
@@ -314,8 +314,8 @@ 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;
@@ -631,8 +631,8 @@ 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 14315f26228a..035688659b50 100644
--- a/drivers/net/dsa/mv88e6xxx/serdes.h
+++ b/drivers/net/dsa/mv88e6xxx/serdes.h
@@ -116,13 +116,13 @@ irqreturn_t mv88e6390_serdes_irq_status(struct mv88e6xxx_chip *chip, int port,
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
next prev parent reply other threads:[~2024-01-16 20:02 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20240116200044.258335-1-sashal@kernel.org>
2024-01-16 19:59 ` [PATCH AUTOSEL 5.10 06/44] bonding: return -ENOMEM instead of BUG in alb_upper_dev_walk Sasha Levin
2024-01-16 19:59 ` [PATCH AUTOSEL 5.10 17/44] net: mvmdio: Avoid excessive sleeps in polled mode Sasha Levin
2024-01-16 19:59 ` [PATCH AUTOSEL 5.10 25/44] ionic: pass opcode to devcmd_wait Sasha Levin
2024-01-16 20:00 ` Sasha Levin [this message]
2024-01-16 20:00 ` [PATCH AUTOSEL 5.10 41/44] wifi: cfg80211: free beacon_ies when overridden from hidden BSS Sasha Levin
2024-01-16 20:00 ` [PATCH AUTOSEL 5.10 44/44] i40e: Fix VF disable behavior to block all traffic Sasha Levin
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20240116200044.258335-32-sashal@kernel.org \
--to=sashal@kernel.org \
--cc=andrew@lunn.ch \
--cc=davem@davemloft.net \
--cc=edumazet@google.com \
--cc=f.fainelli@gmail.com \
--cc=florian.fainelli@broadcom.com \
--cc=kuba@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=netdev@vger.kernel.org \
--cc=olteanv@gmail.com \
--cc=pabeni@redhat.com \
--cc=stable@vger.kernel.org \
--cc=tobias@waldekranz.com \
--cc=vladimir.oltean@nxp.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).