openwrt/target/linux/generic/pending-5.4/755-net-sfp-fix-hwmon.patch
Vladimir Markovets f032601ed7 kernel: backport workaround for Realtek RTL8672 and RTL9601C chips
Adds support for GPON SFP modules based on the Realtek RTL8672 and
RTL9601C chips, including but not limited to:
* V-SOL V2801F
* C-Data FD511GX-RM0
* OPTON GP801R
* BAUDCOM BD-1234-SFM
* CPGOS03-0490 v2.0
* Ubiquiti U-Fiber Instant
* EXOT EGS1

Signed-off-by: Vladimir Markovets <abam_a@yahoo.com>
2021-07-25 13:52:38 +02:00

45 lines
1.3 KiB
Diff

From 5eb0df5023c6ae8a71a7848fd5e1f788d86e51ae Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@armlinux.org.uk>
Date: Tue, 3 Dec 2019 18:46:04 +0000
Subject: [PATCH] net: sfp: fix hwmon
The referenced commit below allowed more than one hwmon device to be
created per SFP, which is definitely not what we want. Avoid this by
only creating the hwmon device just as we transition to WAITDEV state.
Fixes: 139d3a212a1f ("net: sfp: allow modules with slow diagnostics to probe")
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
---
drivers/net/phy/sfp.c | 13 ++++---------
1 file changed, 4 insertions(+), 9 deletions(-)
--- a/drivers/net/phy/sfp.c
+++ b/drivers/net/phy/sfp.c
@@ -1883,6 +1883,10 @@ static void sfp_sm_module(struct sfp *sf
break;
}
+ err = sfp_hwmon_insert(sfp);
+ if (err)
+ dev_warn(sfp->dev, "hwmon probe failed: %d\n", err);
+
sfp_sm_mod_next(sfp, SFP_MOD_WAITDEV, 0);
/* fall through */
case SFP_MOD_WAITDEV:
@@ -1932,15 +1936,6 @@ static void sfp_sm_module(struct sfp *sf
case SFP_MOD_ERROR:
break;
}
-
-#if IS_ENABLED(CONFIG_HWMON)
- if (sfp->sm_mod_state >= SFP_MOD_WAITDEV &&
- IS_ERR_OR_NULL(sfp->hwmon_dev)) {
- err = sfp_hwmon_insert(sfp);
- if (err)
- dev_warn(sfp->dev, "hwmon probe failed: %d\n", err);
- }
-#endif
}
static void sfp_sm_main(struct sfp *sfp, unsigned int event)