[PATCH v2] rtw88: 8822ce: fix wifi disconnect after S3/S4 on HONOR laptop

[PATCH v2] rtw88: 8822ce: fix wifi disconnect after S3/S4 on HONOR laptop

[Hao Chen]

The laptop's wifi disconnect after the laptop HONOR MagicBook 14
sleep to S3/S4 and wake up.

The dmesg of kernel report:
"[   99.990168] pcieport 0000:00:01.2: can't change power state from D3hot
to D0 (config space inaccessible)
[   99.990176] ACPI: EC: interrupt unblocked
[   99.993334] rtw_pci 0000:01:00.0: can't change power state from D3hot
to D0 (config space inaccessible)
......
[  102.133500] rtw_pci 0000:01:00.0: mac power on failed
[  102.133503] rtw_pci 0000:01:00.0: failed to power on mac
[  102.133505] ------------[ cut here ]------------
[  102.133506] Hardware became unavailable upon resume. This could be a
software issue prior to suspend or a hardware issue.
[  102.133569] WARNING: CPU: 4 PID: 5612 at net/mac80211/util.c:2232
ieee80211_reconfig+0x9b/0x1490 [mac80211]
[  102.133570] Modules linked in: ccm rfcomm uvcvideo videobuf2_vmalloc
videobuf2_memops videobuf2_v4l2 videobuf2_common videodev mc cmac bnep 
btusb btrtl btbcm btintel edac_mce_amd bluetooth kvm_amd ecdh_generic 
ecc kvm nls_iso8859_1 rtwpci rtw88 crct10dif_pclmul crc32_pclmul mac80211 
ghash_clmulni_intel aesni_intel snd_hda_codec_realtek crypto_simd huawei_wmi
snd_hda_codec_generic cryptd cfg80211 wmi_bmof serio_raw sparse_keymap
ledtrig_audio sp5100_tco glue_helper joydev snd_hda_codec_hdmi snd_hda_intel
snd_intel_dspcfg wdat_wdt snd_hda_codec snd_hda_core pcspkr snd_hwdep snd_pcm
efi_pstore snd_timer libarc4 k10temp snd soundcore snd_pci_acp3x ccp mac_hid
binfmt_misc ip_tables x_tables autofs4 amdgpu amd_iommu_v2 gpu_sched 
i2c_algo_bit ttm drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops
usbmouse cec nvme hid_generic i2c_piix4 usbhid nvme_core drm wmi video
[  102.133617] CPU: 4 PID: 5612 Comm: kworker/u32:16 Not tainted 5.7.7-amd64-desktop-8822 #3
[  102.133618] Hardware name: HUAWEI NBLL-WXX9/NBLL-WXX9-PCB, BIOS 1.06 09/29/2020
[  102.133623] Workqueue: events_unbound async_run_entry_fn
[  102.133651] RIP: 0010:ieee80211_reconfig+0x9b/0x1490 [mac80211]
[  102.133654] Code: 31 db e8 e8 fb 27 c2 41 c6 85 34 05 00 00 00 4c 89 ef e8 38
56 fc ff 89 45 b8 85 c0 74 4c 48 c7 c7 d0 0c 09 c1 e8 01 e0 25 c2 <0f> 0b 4c
89 ef e8 2b d1 ff ff e9 02 03 00 00 80 7d 9f 00 0f 85 1d
[  102.133655] RSP: 0018:ffffbe52c059fd08 EFLAGS: 00010286
[  102.133657] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000007
[  102.133658] RDX: 0000000000000007 RSI: 0000000000000096 RDI: ffff9d573f519cc0
[  102.133659] RBP: ffffbe52c059fd80 R08: ffffffffffd96245 R09: 000000000002cb80
[  102.133660] R10: 000000016989e54c R11: 000000000002a360 R12: ffff9d5731f50300
[  102.133661] R13: ffff9d5731f50800 R14: ffff9d5731f504c8 R15: ffffffff8463fbef
[  102.133664] FS:  0000000000000000(0000) GS:ffff9d573f500000(0000) knlGS:0000000000000000
[  102.133665] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  102.133666] CR2: 0000000000000000 CR3: 000000033320a000 CR4: 0000000000340ee0
[  102.133667] Call Trace:
[  102.133673]  ? enqueue_entity+0xe3/0x680
[  102.133705]  ieee80211_resume+0x55/0x70 [mac80211]
[  102.133729]  wiphy_resume+0x84/0x130 [cfg80211]
[  102.133752]  ? addresses_show+0xa0/0xa0 [cfg80211]
[  102.133757]  dpm_run_callback+0x5b/0x150
[  102.133760]  device_resume+0xad/0x1f0
[  102.133762]  async_resume+0x1d/0x30
[  102.133764]  async_run_entry_fn+0x3e/0x170
[  102.133768]  process_one_work+0x1ab/0x380
[  102.133771]  worker_thread+0x37/0x3b0
[  102.133774]  kthread+0x120/0x140
[  102.133776]  ? create_worker+0x1b0/0x1b0
[  102.133778]  ? kthread_park+0x90/0x90
[  102.133782]  ret_from_fork+0x22/0x40
[  102.133785] ---[ end trace 46229bfd3a4273be ]---
[  102.134137] ------------[ cut here ]------------
[  102.134141] wlp1s0:  Failed check-sdata-in-driver check, flags: 0x0
[  102.134195] WARNING: CPU: 0 PID: 5612 at net/mac80211/driver-ops.h:19
drv_remove_interface+0xfe/0x110 [mac80211]"

When try to pointer the driver.pm to NULL, the problem is fixed.
It makes the sleep and wake procedure expected when pm's ops not NULL.

By `git blame` command, I know that the assignment of .driver.pm =
RTW_PM_OPS was in commit 44bc17f7f5b3 ("rtw88: support wowlan feature for
8822c"), and another
commit 7dc7c41607d1 ("rtw88: avoid unused function warnings")
pointed out rtw_pci_resume() and rtw_pci_suspend() are not used at
all.

So I think it's safe to remove them.

Fixes: 7dc7c41607d1 ("rtw88: avoid unused function warnings")
Fixes: 44bc17f7f5b3 ("rtw88: support wowlan feature for 8822c")

Signed-off-by: Hao Chen <chenhaoa@uniontech.com>
---
 drivers/net/wireless/realtek/rtw88/rtw8822ce.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/wireless/realtek/rtw88/rtw8822ce.c b/drivers/net/wireless/realtek/rtw88/rtw8822ce.c
index 3845b1333dc3..4c063192f801 100644
--- a/drivers/net/wireless/realtek/rtw88/rtw8822ce.c
+++ b/drivers/net/wireless/realtek/rtw88/rtw8822ce.c
@@ -25,7 +25,6 @@ static struct pci_driver rtw_8822ce_driver = {
 	.id_table = rtw_8822ce_id_table,
 	.probe = rtw_pci_probe,
 	.remove = rtw_pci_remove,
-	.driver.pm = &rtw_pm_ops,
 	.shutdown = rtw_pci_shutdown,
 };
 module_pci_driver(rtw_8822ce_driver);
-- 
2.20.1

Re: [PATCH v2] rtw88: 8822ce: fix wifi disconnect after S3/S4 on HONOR laptop

[Kalle Valo]

Hao Chen <chenhaoa@uniontech.com> writes:

> The laptop's wifi disconnect after the laptop HONOR MagicBook 14
> sleep to S3/S4 and wake up.
>
> The dmesg of kernel report:
> "[   99.990168] pcieport 0000:00:01.2: can't change power state from D3hot
> to D0 (config space inaccessible)
> [   99.990176] ACPI: EC: interrupt unblocked
> [   99.993334] rtw_pci 0000:01:00.0: can't change power state from D3hot
> to D0 (config space inaccessible)
> ......
> [  102.133500] rtw_pci 0000:01:00.0: mac power on failed
> [  102.133503] rtw_pci 0000:01:00.0: failed to power on mac
> [  102.133505] ------------[ cut here ]------------
> [  102.133506] Hardware became unavailable upon resume. This could be a
> software issue prior to suspend or a hardware issue.
> [  102.133569] WARNING: CPU: 4 PID: 5612 at net/mac80211/util.c:2232
> ieee80211_reconfig+0x9b/0x1490 [mac80211]
> [  102.133570] Modules linked in: ccm rfcomm uvcvideo videobuf2_vmalloc
> videobuf2_memops videobuf2_v4l2 videobuf2_common videodev mc cmac bnep 
> btusb btrtl btbcm btintel edac_mce_amd bluetooth kvm_amd ecdh_generic 
> ecc kvm nls_iso8859_1 rtwpci rtw88 crct10dif_pclmul crc32_pclmul mac80211 
> ghash_clmulni_intel aesni_intel snd_hda_codec_realtek crypto_simd huawei_wmi
> snd_hda_codec_generic cryptd cfg80211 wmi_bmof serio_raw sparse_keymap
> ledtrig_audio sp5100_tco glue_helper joydev snd_hda_codec_hdmi snd_hda_intel
> snd_intel_dspcfg wdat_wdt snd_hda_codec snd_hda_core pcspkr snd_hwdep snd_pcm
> efi_pstore snd_timer libarc4 k10temp snd soundcore snd_pci_acp3x ccp mac_hid
> binfmt_misc ip_tables x_tables autofs4 amdgpu amd_iommu_v2 gpu_sched 
> i2c_algo_bit ttm drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops
> usbmouse cec nvme hid_generic i2c_piix4 usbhid nvme_core drm wmi video
> [  102.133617] CPU: 4 PID: 5612 Comm: kworker/u32:16 Not tainted 5.7.7-amd64-desktop-8822 #3
> [  102.133618] Hardware name: HUAWEI NBLL-WXX9/NBLL-WXX9-PCB, BIOS 1.06 09/29/2020
> [  102.133623] Workqueue: events_unbound async_run_entry_fn
> [  102.133651] RIP: 0010:ieee80211_reconfig+0x9b/0x1490 [mac80211]
> [  102.133654] Code: 31 db e8 e8 fb 27 c2 41 c6 85 34 05 00 00 00 4c 89 ef e8 38
> 56 fc ff 89 45 b8 85 c0 74 4c 48 c7 c7 d0 0c 09 c1 e8 01 e0 25 c2 <0f> 0b 4c
> 89 ef e8 2b d1 ff ff e9 02 03 00 00 80 7d 9f 00 0f 85 1d
> [  102.133655] RSP: 0018:ffffbe52c059fd08 EFLAGS: 00010286
> [  102.133657] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000007
> [  102.133658] RDX: 0000000000000007 RSI: 0000000000000096 RDI: ffff9d573f519cc0
> [  102.133659] RBP: ffffbe52c059fd80 R08: ffffffffffd96245 R09: 000000000002cb80
> [  102.133660] R10: 000000016989e54c R11: 000000000002a360 R12: ffff9d5731f50300
> [  102.133661] R13: ffff9d5731f50800 R14: ffff9d5731f504c8 R15: ffffffff8463fbef
> [  102.133664] FS:  0000000000000000(0000) GS:ffff9d573f500000(0000) knlGS:0000000000000000
> [  102.133665] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [  102.133666] CR2: 0000000000000000 CR3: 000000033320a000 CR4: 0000000000340ee0
> [  102.133667] Call Trace:
> [  102.133673]  ? enqueue_entity+0xe3/0x680
> [  102.133705]  ieee80211_resume+0x55/0x70 [mac80211]
> [  102.133729]  wiphy_resume+0x84/0x130 [cfg80211]
> [  102.133752]  ? addresses_show+0xa0/0xa0 [cfg80211]
> [  102.133757]  dpm_run_callback+0x5b/0x150
> [  102.133760]  device_resume+0xad/0x1f0
> [  102.133762]  async_resume+0x1d/0x30
> [  102.133764]  async_run_entry_fn+0x3e/0x170
> [  102.133768]  process_one_work+0x1ab/0x380
> [  102.133771]  worker_thread+0x37/0x3b0
> [  102.133774]  kthread+0x120/0x140
> [  102.133776]  ? create_worker+0x1b0/0x1b0
> [  102.133778]  ? kthread_park+0x90/0x90
> [  102.133782]  ret_from_fork+0x22/0x40
> [  102.133785] ---[ end trace 46229bfd3a4273be ]---
> [  102.134137] ------------[ cut here ]------------
> [  102.134141] wlp1s0:  Failed check-sdata-in-driver check, flags: 0x0
> [  102.134195] WARNING: CPU: 0 PID: 5612 at net/mac80211/driver-ops.h:19
> drv_remove_interface+0xfe/0x110 [mac80211]"
>
> When try to pointer the driver.pm to NULL, the problem is fixed.
> It makes the sleep and wake procedure expected when pm's ops not NULL.
>
> By `git blame` command, I know that the assignment of .driver.pm =
> RTW_PM_OPS was in commit 44bc17f7f5b3 ("rtw88: support wowlan feature for
> 8822c"), and another
> commit 7dc7c41607d1 ("rtw88: avoid unused function warnings")
> pointed out rtw_pci_resume() and rtw_pci_suspend() are not used at
> all.
>
> So I think it's safe to remove them.
>
> Fixes: 7dc7c41607d1 ("rtw88: avoid unused function warnings")
> Fixes: 44bc17f7f5b3 ("rtw88: support wowlan feature for 8822c")
>
> Signed-off-by: Hao Chen <chenhaoa@uniontech.com>
> ---
>  drivers/net/wireless/realtek/rtw88/rtw8822ce.c | 1 -
>  1 file changed, 1 deletion(-)
>
> diff --git a/drivers/net/wireless/realtek/rtw88/rtw8822ce.c b/drivers/net/wireless/realtek/rtw88/rtw8822ce.c
> index 3845b1333dc3..4c063192f801 100644
> --- a/drivers/net/wireless/realtek/rtw88/rtw8822ce.c
> +++ b/drivers/net/wireless/realtek/rtw88/rtw8822ce.c
> @@ -25,7 +25,6 @@ static struct pci_driver rtw_8822ce_driver = {
>  	.id_table = rtw_8822ce_id_table,
>  	.probe = rtw_pci_probe,
>  	.remove = rtw_pci_remove,
> -	.driver.pm = &rtw_pm_ops,

Why just 8822ce? Why not remove rtw_pm_ops entirely if it just creates
problems?

drivers/net/wireless/realtek/rtw88/pci.c:SIMPLE_DEV_PM_OPS(rtw_pm_ops, rtw_pci_suspend, rtw_pci_resume);
drivers/net/wireless/realtek/rtw88/pci.c:EXPORT_SYMBOL(rtw_pm_ops);
drivers/net/wireless/realtek/rtw88/pci.h:extern const struct dev_pm_ops rtw_pm_ops;
drivers/net/wireless/realtek/rtw88/rtw8723de.c: .driver.pm = &rtw_pm_ops,
drivers/net/wireless/realtek/rtw88/rtw8821ce.c: .driver.pm = &rtw_pm_ops,
drivers/net/wireless/realtek/rtw88/rtw8822be.c: .driver.pm = &rtw_pm_ops,
drivers/net/wireless/realtek/rtw88/rtw8822ce.c: .driver.pm = &rtw_pm_ops,


-- 
https://patchwork.kernel.org/project/linux-wireless/list/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches

Re: [PATCH v2] rtw88: 8822ce: fix wifi disconnect after S3/S4 on HONOR laptop

[Pkshih]

On Mon, 2021-02-22 at 12:29 +0200, Kalle Valo wrote:
> Hao Chen <chenhaoa@uniontech.com> writes:
> 
> > The laptop's wifi disconnect after the laptop HONOR MagicBook 14
> > sleep to S3/S4 and wake up.
> >
> > The dmesg of kernel report:
> > "[   99.990168] pcieport 0000:00:01.2: can't change power state from D3hot
> > to D0 (config space inaccessible)
> > [   99.990176] ACPI: EC: interrupt unblocked
> > [   99.993334] rtw_pci 0000:01:00.0: can't change power state from D3hot
> > to D0 (config space inaccessible)
> > ......
> > [  102.133500] rtw_pci 0000:01:00.0: mac power on failed
> > [  102.133503] rtw_pci 0000:01:00.0: failed to power on mac
> > [  102.133505] ------------[ cut here ]------------
> > [  102.133506] Hardware became unavailable upon resume. This could be a
> > software issue prior to suspend or a hardware issue.
> > [  102.133569] WARNING: CPU: 4 PID: 5612 at net/mac80211/util.c:2232
> > ieee80211_reconfig+0x9b/0x1490 [mac80211]
> > [  102.133570] Modules linked in: ccm rfcomm uvcvideo videobuf2_vmalloc
> > videobuf2_memops videobuf2_v4l2 videobuf2_common videodev mc cmac bnep 
> > btusb btrtl btbcm btintel edac_mce_amd bluetooth kvm_amd ecdh_generic 
> > ecc kvm nls_iso8859_1 rtwpci rtw88 crct10dif_pclmul crc32_pclmul mac80211 
> > ghash_clmulni_intel aesni_intel snd_hda_codec_realtek crypto_simd huawei_wmi
> > snd_hda_codec_generic cryptd cfg80211 wmi_bmof serio_raw sparse_keymap
> > ledtrig_audio sp5100_tco glue_helper joydev snd_hda_codec_hdmi snd_hda_intel
> > snd_intel_dspcfg wdat_wdt snd_hda_codec snd_hda_core pcspkr snd_hwdep snd_pcm
> > efi_pstore snd_timer libarc4 k10temp snd soundcore snd_pci_acp3x ccp mac_hid
> > binfmt_misc ip_tables x_tables autofs4 amdgpu amd_iommu_v2 gpu_sched 
> > i2c_algo_bit ttm drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops
> > usbmouse cec nvme hid_generic i2c_piix4 usbhid nvme_core drm wmi video
> > [  102.133617] CPU: 4 PID: 5612 Comm: kworker/u32:16 Not tainted 5.7.7-amd64-desktop-8822 #3
> > [  102.133618] Hardware name: HUAWEI NBLL-WXX9/NBLL-WXX9-PCB, BIOS 1.06 09/29/2020
> > [  102.133623] Workqueue: events_unbound async_run_entry_fn
> > [  102.133651] RIP: 0010:ieee80211_reconfig+0x9b/0x1490 [mac80211]
> > [  102.133654] Code: 31 db e8 e8 fb 27 c2 41 c6 85 34 05 00 00 00 4c 89 ef e8 38
> > 56 fc ff 89 45 b8 85 c0 74 4c 48 c7 c7 d0 0c 09 c1 e8 01 e0 25 c2 <0f> 0b 4c
> > 89 ef e8 2b d1 ff ff e9 02 03 00 00 80 7d 9f 00 0f 85 1d
> > [  102.133655] RSP: 0018:ffffbe52c059fd08 EFLAGS: 00010286
> > [  102.133657] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000007
> > [  102.133658] RDX: 0000000000000007 RSI: 0000000000000096 RDI: ffff9d573f519cc0
> > [  102.133659] RBP: ffffbe52c059fd80 R08: ffffffffffd96245 R09: 000000000002cb80
> > [  102.133660] R10: 000000016989e54c R11: 000000000002a360 R12: ffff9d5731f50300
> > [  102.133661] R13: ffff9d5731f50800 R14: ffff9d5731f504c8 R15: ffffffff8463fbef
> > [  102.133664] FS:  0000000000000000(0000) GS:ffff9d573f500000(0000) knlGS:0000000000000000
> > [  102.133665] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> > [  102.133666] CR2: 0000000000000000 CR3: 000000033320a000 CR4: 0000000000340ee0
> > [  102.133667] Call Trace:
> > [  102.133673]  ? enqueue_entity+0xe3/0x680
> > [  102.133705]  ieee80211_resume+0x55/0x70 [mac80211]
> > [  102.133729]  wiphy_resume+0x84/0x130 [cfg80211]
> > [  102.133752]  ? addresses_show+0xa0/0xa0 [cfg80211]
> > [  102.133757]  dpm_run_callback+0x5b/0x150
> > [  102.133760]  device_resume+0xad/0x1f0
> > [  102.133762]  async_resume+0x1d/0x30
> > [  102.133764]  async_run_entry_fn+0x3e/0x170
> > [  102.133768]  process_one_work+0x1ab/0x380
> > [  102.133771]  worker_thread+0x37/0x3b0
> > [  102.133774]  kthread+0x120/0x140
> > [  102.133776]  ? create_worker+0x1b0/0x1b0
> > [  102.133778]  ? kthread_park+0x90/0x90
> > [  102.133782]  ret_from_fork+0x22/0x40
> > [  102.133785] ---[ end trace 46229bfd3a4273be ]---
> > [  102.134137] ------------[ cut here ]------------
> > [  102.134141] wlp1s0:  Failed check-sdata-in-driver check, flags: 0x0
> > [  102.134195] WARNING: CPU: 0 PID: 5612 at net/mac80211/driver-ops.h:19
> > drv_remove_interface+0xfe/0x110 [mac80211]"
> >
> > When try to pointer the driver.pm to NULL, the problem is fixed.
> > It makes the sleep and wake procedure expected when pm's ops not NULL.
> >
> > By `git blame` command, I know that the assignment of .driver.pm =
> > RTW_PM_OPS was in commit 44bc17f7f5b3 ("rtw88: support wowlan feature for
> > 8822c"), and another
> > commit 7dc7c41607d1 ("rtw88: avoid unused function warnings")
> > pointed out rtw_pci_resume() and rtw_pci_suspend() are not used at
> > all.
> >
> > So I think it's safe to remove them.
> >
> > Fixes: 7dc7c41607d1 ("rtw88: avoid unused function warnings")
> > Fixes: 44bc17f7f5b3 ("rtw88: support wowlan feature for 8822c")
> >
> > Signed-off-by: Hao Chen <chenhaoa@uniontech.com>
> > ---
> >  drivers/net/wireless/realtek/rtw88/rtw8822ce.c | 1 -
> >  1 file changed, 1 deletion(-)
> >
> > diff --git a/drivers/net/wireless/realtek/rtw88/rtw8822ce.c b/drivers/net/wireless/realtek/rtw88/rtw8822ce.c
> > index 3845b1333dc3..4c063192f801 100644
> > --- a/drivers/net/wireless/realtek/rtw88/rtw8822ce.c
> > +++ b/drivers/net/wireless/realtek/rtw88/rtw8822ce.c
> > @@ -25,7 +25,6 @@ static struct pci_driver rtw_8822ce_driver = {
> >  	.id_table = rtw_8822ce_id_table,
> >  	.probe = rtw_pci_probe,
> >  	.remove = rtw_pci_remove,
> > -	.driver.pm = &rtw_pm_ops,
> 
> Why just 8822ce? Why not remove rtw_pm_ops entirely if it just creates
> problems?
> 

I think we can't remove rtw_pm_ops, because wowlan will not work.
We need to find out why the target platform can't properly resume with
this declaration.

--
Ping-Ke

Re: [PATCH v2] rtw88: 8822ce: fix wifi disconnect after S3/S4 on HONOR laptop

[Hao Chen]

Because I only have the `HONOR magic 14` laptop with rtl8822ce wifi chip 
:-(

I will try to find out why the target platform can't properly resume with
this declaration.Thanks.

在 2021/2/22 下午7:36, Pkshih 写道:
> On Mon, 2021-02-22 at 12:29 +0200, Kalle Valo wrote:
>> Hao Chen <chenhaoa@uniontech.com> writes:
>>
>>> The laptop's wifi disconnect after the laptop HONOR MagicBook 14
>>> sleep to S3/S4 and wake up.
>>>
>>> The dmesg of kernel report:
>>> "[   99.990168] pcieport 0000:00:01.2: can't change power state from D3hot
>>> to D0 (config space inaccessible)
>>> [   99.990176] ACPI: EC: interrupt unblocked
>>> [   99.993334] rtw_pci 0000:01:00.0: can't change power state from D3hot
>>> to D0 (config space inaccessible)
>>> ......
>>> [  102.133500] rtw_pci 0000:01:00.0: mac power on failed
>>> [  102.133503] rtw_pci 0000:01:00.0: failed to power on mac
>>> [  102.133505] ------------[ cut here ]------------
>>> [  102.133506] Hardware became unavailable upon resume. This could be a
>>> software issue prior to suspend or a hardware issue.
>>> [  102.133569] WARNING: CPU: 4 PID: 5612 at net/mac80211/util.c:2232
>>> ieee80211_reconfig+0x9b/0x1490 [mac80211]
>>> [  102.133570] Modules linked in: ccm rfcomm uvcvideo videobuf2_vmalloc
>>> videobuf2_memops videobuf2_v4l2 videobuf2_common videodev mc cmac bnep
>>> btusb btrtl btbcm btintel edac_mce_amd bluetooth kvm_amd ecdh_generic
>>> ecc kvm nls_iso8859_1 rtwpci rtw88 crct10dif_pclmul crc32_pclmul mac80211
>>> ghash_clmulni_intel aesni_intel snd_hda_codec_realtek crypto_simd huawei_wmi
>>> snd_hda_codec_generic cryptd cfg80211 wmi_bmof serio_raw sparse_keymap
>>> ledtrig_audio sp5100_tco glue_helper joydev snd_hda_codec_hdmi snd_hda_intel
>>> snd_intel_dspcfg wdat_wdt snd_hda_codec snd_hda_core pcspkr snd_hwdep snd_pcm
>>> efi_pstore snd_timer libarc4 k10temp snd soundcore snd_pci_acp3x ccp mac_hid
>>> binfmt_misc ip_tables x_tables autofs4 amdgpu amd_iommu_v2 gpu_sched
>>> i2c_algo_bit ttm drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops
>>> usbmouse cec nvme hid_generic i2c_piix4 usbhid nvme_core drm wmi video
>>> [  102.133617] CPU: 4 PID: 5612 Comm: kworker/u32:16 Not tainted 5.7.7-amd64-desktop-8822 #3
>>> [  102.133618] Hardware name: HUAWEI NBLL-WXX9/NBLL-WXX9-PCB, BIOS 1.06 09/29/2020
>>> [  102.133623] Workqueue: events_unbound async_run_entry_fn
>>> [  102.133651] RIP: 0010:ieee80211_reconfig+0x9b/0x1490 [mac80211]
>>> [  102.133654] Code: 31 db e8 e8 fb 27 c2 41 c6 85 34 05 00 00 00 4c 89 ef e8 38
>>> 56 fc ff 89 45 b8 85 c0 74 4c 48 c7 c7 d0 0c 09 c1 e8 01 e0 25 c2 <0f> 0b 4c
>>> 89 ef e8 2b d1 ff ff e9 02 03 00 00 80 7d 9f 00 0f 85 1d
>>> [  102.133655] RSP: 0018:ffffbe52c059fd08 EFLAGS: 00010286
>>> [  102.133657] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000007
>>> [  102.133658] RDX: 0000000000000007 RSI: 0000000000000096 RDI: ffff9d573f519cc0
>>> [  102.133659] RBP: ffffbe52c059fd80 R08: ffffffffffd96245 R09: 000000000002cb80
>>> [  102.133660] R10: 000000016989e54c R11: 000000000002a360 R12: ffff9d5731f50300
>>> [  102.133661] R13: ffff9d5731f50800 R14: ffff9d5731f504c8 R15: ffffffff8463fbef
>>> [  102.133664] FS:  0000000000000000(0000) GS:ffff9d573f500000(0000) knlGS:0000000000000000
>>> [  102.133665] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
>>> [  102.133666] CR2: 0000000000000000 CR3: 000000033320a000 CR4: 0000000000340ee0
>>> [  102.133667] Call Trace:
>>> [  102.133673]  ? enqueue_entity+0xe3/0x680
>>> [  102.133705]  ieee80211_resume+0x55/0x70 [mac80211]
>>> [  102.133729]  wiphy_resume+0x84/0x130 [cfg80211]
>>> [  102.133752]  ? addresses_show+0xa0/0xa0 [cfg80211]
>>> [  102.133757]  dpm_run_callback+0x5b/0x150
>>> [  102.133760]  device_resume+0xad/0x1f0
>>> [  102.133762]  async_resume+0x1d/0x30
>>> [  102.133764]  async_run_entry_fn+0x3e/0x170
>>> [  102.133768]  process_one_work+0x1ab/0x380
>>> [  102.133771]  worker_thread+0x37/0x3b0
>>> [  102.133774]  kthread+0x120/0x140
>>> [  102.133776]  ? create_worker+0x1b0/0x1b0
>>> [  102.133778]  ? kthread_park+0x90/0x90
>>> [  102.133782]  ret_from_fork+0x22/0x40
>>> [  102.133785] ---[ end trace 46229bfd3a4273be ]---
>>> [  102.134137] ------------[ cut here ]------------
>>> [  102.134141] wlp1s0:  Failed check-sdata-in-driver check, flags: 0x0
>>> [  102.134195] WARNING: CPU: 0 PID: 5612 at net/mac80211/driver-ops.h:19
>>> drv_remove_interface+0xfe/0x110 [mac80211]"
>>>
>>> When try to pointer the driver.pm to NULL, the problem is fixed.
>>> It makes the sleep and wake procedure expected when pm's ops not NULL.
>>>
>>> By `git blame` command, I know that the assignment of .driver.pm =
>>> RTW_PM_OPS was in commit 44bc17f7f5b3 ("rtw88: support wowlan feature for
>>> 8822c"), and another
>>> commit 7dc7c41607d1 ("rtw88: avoid unused function warnings")
>>> pointed out rtw_pci_resume() and rtw_pci_suspend() are not used at
>>> all.
>>>
>>> So I think it's safe to remove them.
>>>
>>> Fixes: 7dc7c41607d1 ("rtw88: avoid unused function warnings")
>>> Fixes: 44bc17f7f5b3 ("rtw88: support wowlan feature for 8822c")
>>>
>>> Signed-off-by: Hao Chen <chenhaoa@uniontech.com>
>>> ---
>>>    drivers/net/wireless/realtek/rtw88/rtw8822ce.c | 1 -
>>>    1 file changed, 1 deletion(-)
>>>
>>> diff --git a/drivers/net/wireless/realtek/rtw88/rtw8822ce.c b/drivers/net/wireless/realtek/rtw88/rtw8822ce.c
>>> index 3845b1333dc3..4c063192f801 100644
>>> --- a/drivers/net/wireless/realtek/rtw88/rtw8822ce.c
>>> +++ b/drivers/net/wireless/realtek/rtw88/rtw8822ce.c
>>> @@ -25,7 +25,6 @@ static struct pci_driver rtw_8822ce_driver = {
>>>    	.id_table = rtw_8822ce_id_table,
>>>    	.probe = rtw_pci_probe,
>>>    	.remove = rtw_pci_remove,
>>> -	.driver.pm = &rtw_pm_ops,
>> Why just 8822ce? Why not remove rtw_pm_ops entirely if it just creates
>> problems?
>>
> I think we can't remove rtw_pm_ops, because wowlan will not work.
> We need to find out why the target platform can't properly resume with
> this declaration.
>
> --
> Ping-Ke
>

Re: [PATCH v2] rtw88: 8822ce: fix wifi disconnect after S3/S4 on HONOR laptop

[Pkshih]

On Mon, 2021-02-22 at 20:57 +0800, Hao Chen wrote:
> Because I only have the `HONOR magic 14` laptop with rtl8822ce wifi chip 
> :-(
> 
> I will try to find out why the target platform can't properly resume with
> this declaration.Thanks.
> 
> 在 2021/2/22 下午7:36, Pkshih 写道:
> > On Mon, 2021-02-22 at 12:29 +0200, Kalle Valo wrote:
> >> Hao Chen <chenhaoa@uniontech.com> writes:
> >>
> >>> The laptop's wifi disconnect after the laptop HONOR MagicBook 14
> >>> sleep to S3/S4 and wake up.
> >>>
> >>> The dmesg of kernel report:
> >>> "[   99.990168] pcieport 0000:00:01.2: can't change power state from D3hot
> >>> to D0 (config space inaccessible)
> >>> [   99.990176] ACPI: EC: interrupt unblocked
> >>> [   99.993334] rtw_pci 0000:01:00.0: can't change power state from D3hot
> >>> to D0 (config space inaccessible)
> >>> ......
> >>> [  102.133500] rtw_pci 0000:01:00.0: mac power on failed
> >>> [  102.133503] rtw_pci 0000:01:00.0: failed to power on mac
> >>> [  102.133505] ------------[ cut here ]------------
> >>> [  102.133506] Hardware became unavailable upon resume. This could be a
> >>> software issue prior to suspend or a hardware issue.
> >>> [  102.133569] WARNING: CPU: 4 PID: 5612 at net/mac80211/util.c:2232
> >>> ieee80211_reconfig+0x9b/0x1490 [mac80211]
> >>> [  102.133570] Modules linked in: ccm rfcomm uvcvideo videobuf2_vmalloc
> >>> videobuf2_memops videobuf2_v4l2 videobuf2_common videodev mc cmac bnep
> >>> btusb btrtl btbcm btintel edac_mce_amd bluetooth kvm_amd ecdh_generic
> >>> ecc kvm nls_iso8859_1 rtwpci rtw88 crct10dif_pclmul crc32_pclmul mac80211
> >>> ghash_clmulni_intel aesni_intel snd_hda_codec_realtek crypto_simd huawei_wmi
> >>> snd_hda_codec_generic cryptd cfg80211 wmi_bmof serio_raw sparse_keymap
> >>> ledtrig_audio sp5100_tco glue_helper joydev snd_hda_codec_hdmi snd_hda_intel
> >>> snd_intel_dspcfg wdat_wdt snd_hda_codec snd_hda_core pcspkr snd_hwdep snd_pcm
> >>> efi_pstore snd_timer libarc4 k10temp snd soundcore snd_pci_acp3x ccp mac_hid
> >>> binfmt_misc ip_tables x_tables autofs4 amdgpu amd_iommu_v2 gpu_sched
> >>> i2c_algo_bit ttm drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops
> >>> usbmouse cec nvme hid_generic i2c_piix4 usbhid nvme_core drm wmi video
> >>> [  102.133617] CPU: 4 PID: 5612 Comm: kworker/u32:16 Not tainted 5.7.7-amd64-desktop-8822 #3
> >>> [  102.133618] Hardware name: HUAWEI NBLL-WXX9/NBLL-WXX9-PCB, BIOS 1.06 09/29/2020
> >>> [  102.133623] Workqueue: events_unbound async_run_entry_fn
> >>> [  102.133651] RIP: 0010:ieee80211_reconfig+0x9b/0x1490 [mac80211]
> >>> [  102.133654] Code: 31 db e8 e8 fb 27 c2 41 c6 85 34 05 00 00 00 4c 89 ef e8 38
> >>> 56 fc ff 89 45 b8 85 c0 74 4c 48 c7 c7 d0 0c 09 c1 e8 01 e0 25 c2 <0f> 0b 4c
> >>> 89 ef e8 2b d1 ff ff e9 02 03 00 00 80 7d 9f 00 0f 85 1d
> >>> [  102.133655] RSP: 0018:ffffbe52c059fd08 EFLAGS: 00010286
> >>> [  102.133657] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000007
> >>> [  102.133658] RDX: 0000000000000007 RSI: 0000000000000096 RDI: ffff9d573f519cc0
> >>> [  102.133659] RBP: ffffbe52c059fd80 R08: ffffffffffd96245 R09: 000000000002cb80
> >>> [  102.133660] R10: 000000016989e54c R11: 000000000002a360 R12: ffff9d5731f50300
> >>> [  102.133661] R13: ffff9d5731f50800 R14: ffff9d5731f504c8 R15: ffffffff8463fbef
> >>> [  102.133664] FS:  0000000000000000(0000) GS:ffff9d573f500000(0000) knlGS:0000000000000000
> >>> [  102.133665] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> >>> [  102.133666] CR2: 0000000000000000 CR3: 000000033320a000 CR4: 0000000000340ee0
> >>> [  102.133667] Call Trace:
> >>> [  102.133673]  ? enqueue_entity+0xe3/0x680
> >>> [  102.133705]  ieee80211_resume+0x55/0x70 [mac80211]
> >>> [  102.133729]  wiphy_resume+0x84/0x130 [cfg80211]
> >>> [  102.133752]  ? addresses_show+0xa0/0xa0 [cfg80211]
> >>> [  102.133757]  dpm_run_callback+0x5b/0x150
> >>> [  102.133760]  device_resume+0xad/0x1f0
> >>> [  102.133762]  async_resume+0x1d/0x30
> >>> [  102.133764]  async_run_entry_fn+0x3e/0x170
> >>> [  102.133768]  process_one_work+0x1ab/0x380
> >>> [  102.133771]  worker_thread+0x37/0x3b0
> >>> [  102.133774]  kthread+0x120/0x140
> >>> [  102.133776]  ? create_worker+0x1b0/0x1b0
> >>> [  102.133778]  ? kthread_park+0x90/0x90
> >>> [  102.133782]  ret_from_fork+0x22/0x40
> >>> [  102.133785] ---[ end trace 46229bfd3a4273be ]---
> >>> [  102.134137] ------------[ cut here ]------------
> >>> [  102.134141] wlp1s0:  Failed check-sdata-in-driver check, flags: 0x0
> >>> [  102.134195] WARNING: CPU: 0 PID: 5612 at net/mac80211/driver-ops.h:19
> >>> drv_remove_interface+0xfe/0x110 [mac80211]"
> >>>
> >>> When try to pointer the driver.pm to NULL, the problem is fixed.
> >>> It makes the sleep and wake procedure expected when pm's ops not NULL.
> >>>
> >>> By `git blame` command, I know that the assignment of .driver.pm =
> >>> RTW_PM_OPS was in commit 44bc17f7f5b3 ("rtw88: support wowlan feature for
> >>> 8822c"), and another
> >>> commit 7dc7c41607d1 ("rtw88: avoid unused function warnings")
> >>> pointed out rtw_pci_resume() and rtw_pci_suspend() are not used at
> >>> all.
> >>>
> >>> So I think it's safe to remove them.
> >>>
> >>> Fixes: 7dc7c41607d1 ("rtw88: avoid unused function warnings")
> >>> Fixes: 44bc17f7f5b3 ("rtw88: support wowlan feature for 8822c")
> >>>
> >>> Signed-off-by: Hao Chen <chenhaoa@uniontech.com>
> >>> ---
> >>>    drivers/net/wireless/realtek/rtw88/rtw8822ce.c | 1 -
> >>>    1 file changed, 1 deletion(-)
> >>>
> >>> diff --git a/drivers/net/wireless/realtek/rtw88/rtw8822ce.c b/drivers/net/wireless/realtek/rtw88/rtw8822ce.c
> >>> index 3845b1333dc3..4c063192f801 100644
> >>> --- a/drivers/net/wireless/realtek/rtw88/rtw8822ce.c
> >>> +++ b/drivers/net/wireless/realtek/rtw88/rtw8822ce.c
> >>> @@ -25,7 +25,6 @@ static struct pci_driver rtw_8822ce_driver = {
> >>>    	.id_table = rtw_8822ce_id_table,
> >>>    	.probe = rtw_pci_probe,
> >>>    	.remove = rtw_pci_remove,
> >>> -	.driver.pm = &rtw_pm_ops,
> >> Why just 8822ce? Why not remove rtw_pm_ops entirely if it just creates
> >> problems?
> >>
> > I think we can't remove rtw_pm_ops, because wowlan will not work.
> > We need to find out why the target platform can't properly resume with
> > this declaration.
> >
> 

side note: please don't top post that maintainers do hard to read them.

I suggest to use  `pcie_aspm.policy=performance ` mentioned in v1 temporarily; 
it works on your platform, right?
My colleagues will help to check the things you provide. If we have any update,
I'll let you know.

--
Ping-Ke

Re: [PATCH v2] rtw88: 8822ce: fix wifi disconnect after S3/S4 on HONOR laptop

[Kalle Valo]

Pkshih <pkshih@realtek.com> writes:

>> > --- a/drivers/net/wireless/realtek/rtw88/rtw8822ce.c
>> > +++ b/drivers/net/wireless/realtek/rtw88/rtw8822ce.c
>> > @@ -25,7 +25,6 @@ static struct pci_driver rtw_8822ce_driver = {
>> >  	.id_table = rtw_8822ce_id_table,
>> >  	.probe = rtw_pci_probe,
>> >  	.remove = rtw_pci_remove,
>> > -	.driver.pm = &rtw_pm_ops,
>> 
>> Why just 8822ce? Why not remove rtw_pm_ops entirely if it just creates
>> problems?
>
> I think we can't remove rtw_pm_ops, because wowlan will not work.

Ah. A comment code in the code stating that would be nice.

-- 
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https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches

Re: [PATCH v2] rtw88: 8822ce: fix wifi disconnect after S3/S4 on HONOR laptop

[Pkshih]

On Tue, 2021-02-23 at 09:08 +0200, Kalle Valo wrote:
> Pkshih <pkshih@realtek.com> writes:
> 
> >> > --- a/drivers/net/wireless/realtek/rtw88/rtw8822ce.c
> >> > +++ b/drivers/net/wireless/realtek/rtw88/rtw8822ce.c
> >> > @@ -25,7 +25,6 @@ static struct pci_driver rtw_8822ce_driver = {
> >> >  	.id_table = rtw_8822ce_id_table,
> >> >  	.probe = rtw_pci_probe,
> >> >  	.remove = rtw_pci_remove,
> >> > -	.driver.pm = &rtw_pm_ops,
> >> 
> >> Why just 8822ce? Why not remove rtw_pm_ops entirely if it just creates
> >> problems?
> >
> > I think we can't remove rtw_pm_ops, because wowlan will not work.
> 
> Ah. A comment code in the code stating that would be nice.
> 

I'll do it. 
Thanks.

Re: [PATCH v2] rtw88: 8822ce: fix wifi disconnect after S3/S4 on HONOR laptop

[Kalle Valo]

Pkshih <pkshih@realtek.com> writes:

> On Tue, 2021-02-23 at 09:08 +0200, Kalle Valo wrote:
>> Pkshih <pkshih@realtek.com> writes:
>> 
>> >> > --- a/drivers/net/wireless/realtek/rtw88/rtw8822ce.c
>> >> > +++ b/drivers/net/wireless/realtek/rtw88/rtw8822ce.c
>> >> > @@ -25,7 +25,6 @@ static struct pci_driver rtw_8822ce_driver = {
>> >> >  	.id_table = rtw_8822ce_id_table,
>> >> >  	.probe = rtw_pci_probe,
>> >> >  	.remove = rtw_pci_remove,
>> >> > -	.driver.pm = &rtw_pm_ops,
>> >> 
>> >> Why just 8822ce? Why not remove rtw_pm_ops entirely if it just creates
>> >> problems?
>> >
>> > I think we can't remove rtw_pm_ops, because wowlan will not work.
>> 
>> Ah. A comment code in the code stating that would be nice.
>> 
>
> I'll do it.

Thank you.

-- 
https://patchwork.kernel.org/project/linux-wireless/list/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches