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Date:   Thu,  6 Feb 2020 20:51:53 +0200
From:   Lauri Jakku <lja@....fi>
To:     nic_swsd@...ltek.com, hkallweit1@...il.com
Cc:     lja@....fi, netdev@...r.kernel.org
Subject: [PATCH] NET: Realtek depency chain r8169 -> realtec -> libphy fixed.

  * Added soft depency from realtec phy to libphy.

[   39.953438] Generic PHY r8169-200:00: attached PHY driver [Generic PHY] (mii_bus:phy_addr=r8169-200:00, irq=IGNORE)
[   39.957413] ------------[ cut here ]------------
[   39.957414] read_page callback not available, PHY driver not loaded?
[   39.957458] WARNING: CPU: 3 PID: 3896 at drivers/net/phy/phy-core.c:700 __phy_read_page+0x3f/0x50 [libphy]
[   39.957459] Modules linked in: cmac algif_hash algif_skcipher af_alg bnep nls_iso8859_1 nls_cp437 vfat fat squashfs loop videobuf2_vmalloc videobuf2_memops snd_usb_audio videobuf2_v4l2 amdgpu videobuf2_common snd_usbmidi_lib videodev snd_rawmidi snd_seq_device mc btusb btrtl btbcm btintel mousedev input_leds joydev
bluetooth gpu_sched snd_hda_codec_realtek i2c_algo_bit ttm ecdh_generic snd_hda_codec_generic snd_hda_codec_hdmi rfkill ecc drm_kms_helper ledtrig_audio snd_hda_intel drm snd_intel_dspcfg snd_hda_codec agpgart snd_hda_core syscopyarea sysfillrect sysimgblt snd_hwdep fb_sys_fops snd_pcm snd_timer r8169 snd soundcore eda
c_mce_amd sp5100_tco kvm_amd i2c_piix4 realtek libphy ccp wmi_bmof ppdev rng_core k10temp kvm irqbypass parport_pc evdev parport mac_hid wmi pcspkr acpi_cpufreq uinput crypto_user ip_tables x_tables ext4 crc32c_generic crc16 mbcache jbd2 hid_generic usbhid hid sr_mod cdrom sd_mod ohci_pci pata_atiixp ata_generic pata_acpi firewire_ohci ahci pata_jmicron
[   39.957483]  firewire_core libahci crc_itu_t libata scsi_mod ehci_pci ehci_hcd ohci_hcd floppy
[   39.957488] CPU: 3 PID: 3896 Comm: NetworkManager Not tainted 5.5.0-2-MANJARO-usb-mod-v4 #1
[   39.957489] Hardware name: Gigabyte Technology Co., Ltd. GA-MA790FXT-UD5P/GA-MA790FXT-UD5P, BIOS F8l 07/15/2010
[   39.957494] RIP: 0010:__phy_read_page+0x3f/0x50 [libphy]
[   39.957496] Code: c0 74 05 e9 33 77 3d e9 80 3d cd e3 00 00 00 74 06 b8 a1 ff ff ff c3 48 c7 c7 50 0c 63 c0 c6 05 b7 e3 00 00 01 e8 33 70 86 e8 <0f> 0b eb e3 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 0f 1f 44 00 00
[   39.957497] RSP: 0018:ffffa459ca3fb3b0 EFLAGS: 00010282
[   39.957498] RAX: 0000000000000000 RBX: 0000000000006662 RCX: 0000000000000000
[   39.957499] RDX: 0000000000000001 RSI: 0000000000000092 RDI: 00000000ffffffff
[   39.957499] RBP: ffff9c91b46c3800 R08: 000000000000047a R09: 0000000000000001
[   39.957500] R10: 0000000000000000 R11: 0000000000000001 R12: ffff9c91b5a8a8c0
[   39.957500] R13: 0000000000000002 R14: 0000000000000001 R15: 0000000000000000
[   39.957501] FS:  00007ff199d38d80(0000) GS:ffff9c91b7cc0000(0000) knlGS:0000000000000000
[   39.957502] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   39.957503] CR2: 00007f907f428ff8 CR3: 00000001ed122000 CR4: 00000000000006e0
[   39.957503] Call Trace:
[   39.957511]  phy_select_page+0x28/0x50 [libphy]
[   39.957518]  phy_write_paged+0x18/0x50 [libphy]
[   39.957523]  rtl8168d_1_hw_phy_config+0x1c8/0x1f0 [r8169]
[   39.957526]  rtl8169_init_phy+0x2c/0xb0 [r8169]
[   39.957529]  rtl_open+0x3b2/0x570 [r8169]
[   39.957533]  __dev_open+0xe0/0x170
[   39.957535]  __dev_change_flags+0x188/0x1e0
[   39.957537]  dev_change_flags+0x21/0x60
[   39.957539]  do_setlink+0x78a/0xf90
[   39.957544]  ? kernel_init_free_pages+0x6d/0x90
[   39.957546]  ? prep_new_page+0x46/0xd0
[   39.957548]  ? cpumask_next+0x16/0x20
[   39.957550]  ? __snmp6_fill_stats64.isra.0+0x66/0x110
[   39.957553]  __rtnl_newlink+0x5d1/0x9a0
[   39.957563]  rtnl_newlink+0x44/0x70
[   39.957564]  rtnetlink_rcv_msg+0x137/0x3c0
[   39.957566]  ? rtnl_calcit.isra.0+0x120/0x120
[   39.957568]  netlink_rcv_skb+0x75/0x140
[   39.957570]  netlink_unicast+0x199/0x240
[   39.957572]  netlink_sendmsg+0x243/0x480
[   39.957575]  sock_sendmsg+0x5e/0x60
[   39.957576]  ____sys_sendmsg+0x21b/0x290
[   39.957577]  ? copy_msghdr_from_user+0xe1/0x160
[   39.957580]  ___sys_sendmsg+0x9e/0xe0
[   39.957583]  ? addrconf_sysctl_forward+0x12b/0x270
[   39.957585]  __sys_sendmsg+0x81/0xd0
[   39.957588]  do_syscall_64+0x4e/0x150
[   39.957591]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   39.957593] RIP: 0033:0x7ff19af247ed
[   39.957594] Code: 28 89 54 24 1c 48 89 74 24 10 89 7c 24 08 e8 4a 53 f8 ff 8b 54 24 1c 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 2f 44 89 c7 48 89 44 24 08 e8 7e 53 f8 ff 48
[   39.957595] RSP: 002b:00007ffd570ac710 EFLAGS: 00000293 ORIG_RAX: 000000000000002e
[   39.957596] RAX: ffffffffffffffda RBX: 000000000000000c RCX: 00007ff19af247ed
[   39.957596] RDX: 0000000000000000 RSI: 00007ffd570ac750 RDI: 000000000000000c
[   39.957597] RBP: 0000562f3d390090 R08: 0000000000000000 R09: 0000000000000000
[   39.957597] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
[   39.957598] R13: 00007ffd570ac8b0 R14: 00007ffd570ac8ac R15: 0000000000000000
[   39.957601] ---[ end trace f2cccff3f7fdfb28 ]---

Signed-off-by: Lauri Jakku <lja@....fi>
---
 drivers/net/phy/realtek.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/phy/realtek.c b/drivers/net/phy/realtek.c
index f5fa2fff3ddc..4a1d4342c71e 100644
--- a/drivers/net/phy/realtek.c
+++ b/drivers/net/phy/realtek.c
@@ -54,6 +54,7 @@
 MODULE_DESCRIPTION("Realtek PHY driver");
 MODULE_AUTHOR("Johnson Leung");
 MODULE_LICENSE("GPL");
+MODULE_SOFTDEP("pre: libphy");
 
 static int rtl821x_read_page(struct phy_device *phydev)
 {
-- 
2.25.0

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