From: Vadym Kochan <vadym.kochan@plvision.eu>
To: "David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
Jamal Hadi Salim <jhs@mojatatu.com>,
Cong Wang <xiyou.wangcong@gmail.com>,
Andrew Lunn <andrew@lunn.ch>, Vladimir Oltean <olteanv@gmail.com>,
Serhiy Boiko <serhiy.boiko@plvision.eu>,
Volodymyr Mytnyk <volodymyr.mytnyk@plvision.eu>,
Taras Chornyi <taras.chornyi@plvision.eu>
Cc: Vadym Kochan <vadym.kochan@plvision.eu>,
Taras Chornyi <tchornyi@marvell.com>,
Mickey Rachamim <mickeyr@marvell.com>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
Vadym Kochan <vkochan@marvell.com>
Subject: [PATCH net-next v2 1/4] net: marvell: prestera: do not fail if FW reply is bigger
Date: Mon, 2 Aug 2021 17:08:46 +0300 [thread overview]
Message-ID: <20210802140849.2050-2-vadym.kochan@plvision.eu> (raw)
In-Reply-To: <20210802140849.2050-1-vadym.kochan@plvision.eu>
From: Vadym Kochan <vkochan@marvell.com>
There might be a case when driver talks to the newer FW version
which has extended message packets with extra fields, in that case
lets just copy minimum what we need/can.
Signed-off-by: Vadym Kochan <vkochan@marvell.com>
---
drivers/net/ethernet/marvell/prestera/prestera_pci.c | 7 +------
1 file changed, 1 insertion(+), 6 deletions(-)
diff --git a/drivers/net/ethernet/marvell/prestera/prestera_pci.c b/drivers/net/ethernet/marvell/prestera/prestera_pci.c
index a250d394da38..58642b540322 100644
--- a/drivers/net/ethernet/marvell/prestera/prestera_pci.c
+++ b/drivers/net/ethernet/marvell/prestera/prestera_pci.c
@@ -359,12 +359,7 @@ static int prestera_fw_cmd_send(struct prestera_fw *fw,
}
ret_size = prestera_fw_read(fw, PRESTERA_CMD_RCV_LEN_REG);
- if (ret_size > out_size) {
- dev_err(fw->dev.dev, "ret_size (%u) > out_len(%zu)\n",
- ret_size, out_size);
- err = -EMSGSIZE;
- goto cmd_exit;
- }
+ ret_size = min_t(u32, ret_size, out_size);
memcpy_fromio(out_msg, fw->cmd_mbox + in_size, ret_size);
--
2.17.1
next prev parent reply other threads:[~2021-08-02 14:16 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-02 14:08 [PATCH net-next v2 0/4] Marvell Prestera add policer support Vadym Kochan
2021-08-02 14:08 ` Vadym Kochan [this message]
2021-08-02 14:08 ` [PATCH net-next v2 2/4] net: marvell: prestera: turn FW supported versions into an array Vadym Kochan
2021-08-02 14:08 ` [PATCH net-next v2 3/4] net: sched: introduce __tc_classid_to_hwtc() helper Vadym Kochan
2021-08-02 14:08 ` [PATCH net-next v2 4/4] net: marvell: prestera: Offload FLOW_ACTION_POLICE Vadym Kochan
2021-08-02 15:23 ` Ido Schimmel
2021-08-03 16:19 ` Volodymyr Mytnyk [C]
2021-08-03 16:46 ` Ido Schimmel
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