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authorLinus Torvalds <torvalds@linux-foundation.org>2024-12-05 10:25:06 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2024-12-05 10:25:06 -0800
commit896d8946da97332d4dc80fa1937d8dd6b1c35ad4 (patch)
treec36709d93c420caebb7d1637b3bb1f777f52c8d7 /drivers/net/phy/microchip.c
parent9d6a414ad31e8eb296cd6f2c1834b2c6994960a0 (diff)
parent31f1b55d5d7e531cd827419e5d71c19f24de161c (diff)
Merge tag 'net-6.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni: "Including fixes from can and netfilter. Current release - regressions: - rtnetlink: fix double call of rtnl_link_get_net_ifla() - tcp: populate XPS related fields of timewait sockets - ethtool: fix access to uninitialized fields in set RXNFC command - selinux: use sk_to_full_sk() in selinux_ip_output() Current release - new code bugs: - net: make napi_hash_lock irq safe - eth: - bnxt_en: support header page pool in queue API - ice: fix NULL pointer dereference in switchdev Previous releases - regressions: - core: fix icmp host relookup triggering ip_rt_bug - ipv6: - avoid possible NULL deref in modify_prefix_route() - release expired exception dst cached in socket - smc: fix LGR and link use-after-free issue - hsr: avoid potential out-of-bound access in fill_frame_info() - can: hi311x: fix potential use-after-free - eth: ice: fix VLAN pruning in switchdev mode Previous releases - always broken: - netfilter: - ipset: hold module reference while requesting a module - nft_inner: incorrect percpu area handling under softirq - can: j1939: fix skb reference counting - eth: - mlxsw: use correct key block on Spectrum-4 - mlx5: fix memory leak in mlx5hws_definer_calc_layout" * tag 'net-6.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (76 commits) net :mana :Request a V2 response version for MANA_QUERY_GF_STAT net: avoid potential UAF in default_operstate() vsock/test: verify socket options after setting them vsock/test: fix parameter types in SO_VM_SOCKETS_* calls vsock/test: fix failures due to wrong SO_RCVLOWAT parameter net/mlx5e: Remove workaround to avoid syndrome for internal port net/mlx5e: SD, Use correct mdev to build channel param net/mlx5: E-Switch, Fix switching to switchdev mode in MPV net/mlx5: E-Switch, Fix switching to switchdev mode with IB device disabled net/mlx5: HWS: Properly set bwc queue locks lock classes net/mlx5: HWS: Fix memory leak in mlx5hws_definer_calc_layout bnxt_en: handle tpa_info in queue API implementation bnxt_en: refactor bnxt_alloc_rx_rings() to call bnxt_alloc_rx_agg_bmap() bnxt_en: refactor tpa_info alloc/free into helpers geneve: do not assume mac header is set in geneve_xmit_skb() mlxsw: spectrum_acl_flex_keys: Use correct key block on Spectrum-4 ethtool: Fix wrong mod state in case of verbose and no_mask bitset ipmr: tune the ipmr_can_free_table() checks. netfilter: nft_set_hash: skip duplicated elements pending gc run netfilter: ipset: Hold module reference while requesting a module ...
Diffstat (limited to 'drivers/net/phy/microchip.c')
-rw-r--r--drivers/net/phy/microchip.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/net/phy/microchip.c b/drivers/net/phy/microchip.c
index d3273bc0da4a..691969a4910f 100644
--- a/drivers/net/phy/microchip.c
+++ b/drivers/net/phy/microchip.c
@@ -351,6 +351,22 @@ static int lan88xx_config_aneg(struct phy_device *phydev)
static void lan88xx_link_change_notify(struct phy_device *phydev)
{
int temp;
+ int ret;
+
+ /* Reset PHY to ensure MII_LPA provides up-to-date information. This
+ * issue is reproducible only after parallel detection, as described
+ * in IEEE 802.3-2022, Section 28.2.3.1 ("Parallel detection function"),
+ * where the link partner does not support auto-negotiation.
+ */
+ if (phydev->state == PHY_NOLINK) {
+ ret = phy_init_hw(phydev);
+ if (ret < 0)
+ goto link_change_notify_failed;
+
+ ret = _phy_start_aneg(phydev);
+ if (ret < 0)
+ goto link_change_notify_failed;
+ }
/* At forced 100 F/H mode, chip may fail to set mode correctly
* when cable is switched between long(~50+m) and short one.
@@ -377,6 +393,11 @@ static void lan88xx_link_change_notify(struct phy_device *phydev)
temp |= LAN88XX_INT_MASK_MDINTPIN_EN_;
phy_write(phydev, LAN88XX_INT_MASK, temp);
}
+
+ return;
+
+link_change_notify_failed:
+ phydev_err(phydev, "Link change process failed %pe\n", ERR_PTR(ret));
}
/**