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404209f6c4
kernel: bump to 4.14.193, 4.19.138, 5.4.59 (#5350) 431fb8c mac80211: add AQL improvements 6bdd4c9 mac80211: add missing backports for building with 4.14 kernels 0106820 mac80211: add missing return code checks in AQL improvements e7f7101 mac80211: rework encapsulation offload support [package] base-files: add function for generating random MAC dnsmasq: abort dhcp_check on interface state boot: sync upstream source code ath10k-ct-firmware/mt76/sch_cake: update to latest git HEAD [script] download: add China Mirror Station [target] Sync: arc770, ath79, bcm63xx, kirkwood, lantiq, layerscape, mediatek, mvebu, octeon, oxnas, pistachio, uml Sync most of the target patches. Run-compiled-on: ipq40xx (4.19 & 5.4), ramips
59 lines
1.9 KiB
Diff
59 lines
1.9 KiB
Diff
From 73204b342fbee1fd9364365c1213815cc715eee2 Mon Sep 17 00:00:00 2001
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From: Claudiu Manoil <claudiu.manoil@nxp.com>
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Date: Thu, 14 Nov 2019 16:22:39 +0200
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Subject: [PATCH] enetc: Remove mdio bus on PF probe error path
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Fixes following kernel panic on the probing error
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path, when pci=nomsi bootarg is used (which is
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not supporrted by the enetc dirver):
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fsl_enetc 0000:00:00.0: MSIX alloc failed
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------------[ cut here ]------------
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kernel BUG at drivers/net/phy/mdio_bus.c:487!
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Internal error: Oops - BUG: 0 [#1] PREEMPT SMP
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Modules linked in:
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Process swapper/0 (pid: 1, stack limit = 0x(____ptrval____))
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CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.19.68-00004-g85dc4876e6e6 #1
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Hardware name: LS1028A RDB Board (DT)
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pstate: 80000005 (Nzcv daif -PAN -UAO)
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pc : mdiobus_free+0x5c/0x60
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lr : _devm_mdiobus_free+0x20/0x30
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[...]
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Call trace:
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mdiobus_free+0x5c/0x60
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_devm_mdiobus_free+0x20/0x30
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release_nodes+0x148/0x238
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devres_release_all+0x3c/0x68
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really_probe+0x90/0x2a0
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driver_probe_device+0x5c/0x100
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__driver_attach+0xf0/0xf8
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bus_for_each_dev+0x84/0xd8
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driver_attach+0x30/0x40
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bus_add_driver+0x1c4/0x230
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driver_register+0x64/0x110
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__pci_register_driver+0x58/0x68
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enetc_pf_driver_init+0x28/0x30
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do_one_initcall+0x54/0x268
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kernel_init_freeable+0x2d0/0x37c
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kernel_init+0x18/0x118
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ret_from_fork+0x10/0x1c
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Code: 97e0dd79 f9400bf3 a8c27bfd d65f03c0 (d4210000)
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---[ end trace 1e4e5729f059b773 ]---
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Fixes: ebfcb23d62ab ("enetc: Add ENETC PF level external MDIO support")
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Signed-off-by: Claudiu Manoil <claudiu.manoil@nxp.com>
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---
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drivers/net/ethernet/freescale/enetc/enetc_pf.c | 1 +
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1 file changed, 1 insertion(+)
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--- a/drivers/net/ethernet/freescale/enetc/enetc_pf.c
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+++ b/drivers/net/ethernet/freescale/enetc/enetc_pf.c
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@@ -953,6 +953,7 @@ err_alloc_si_res:
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si->ndev = NULL;
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free_netdev(ndev);
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err_alloc_netdev:
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+ enetc_mdio_remove(pf);
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enetc_of_put_phy(pf);
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err_map_pf_space:
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enetc_pci_remove(pdev);
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