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From: Wren Turkal <wt@penguintechs.org>
To: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>,
	quic_zijuhu <quic_zijuhu@quicinc.com>
Cc: luiz.dentz@gmail.com, luiz.von.dentz@intel.com,
	marcel@holtmann.org, linux-bluetooth@vger.kernel.org,
	krzysztof.kozlowski@linaro.org
Subject: Re: [PATCH v1 1/2] Revert "Bluetooth: hci_qca: don't use IS_ERR_OR_NULL() with gpiod_get_optional()"
Date: Sun, 21 Apr 2024 00:14:25 -0700	[thread overview]
Message-ID: <5c9a57ba-d516-4d3e-85e5-bba299ee97a6@penguintechs.org> (raw)
In-Reply-To: <CACMJSeuTkC=Sho29HLada3eTPoasZguObhC1FwmgtJ0dqj=Ykw@mail.gmail.com>

On 4/18/24 3:42 PM, Bartosz Golaszewski wrote:
>> 1) do you meet the case that EPROBE_DEFER is returned ?
>>
> It doesn't matter. It's about correct usage of a programming interface.

In case you are not aware, this apparent correct usage of the 
programming interface breaks real hardware. As a kernel user with this 
problem, I am just wondering if we expect a fix to land before v6.9 lands.

If we can't find the a fix that has "correct usage of the programming 
interface" before 6.9 closes out, would we be able to revert this change 
considering that it causes a real userspace regression in that the BT on 
some laptops simply don't work now? I guess I am asking if this 
theoretical correction more important than breaking actual currently 
supported hardware?

Real users like me are hurt by this. In my case, I am using a laptop 
that was shipped in 2020 with Linux by Dell that included working BT 
support. I now have broken BT hardware that is barely usable at all.

And as a kernel user, I thought the kernel had a no regression policy. 
Granted, I don't know the specific details of how it works. Does that 
policy include support of widely deployed hardware?

Just so you know, I am just trying to understand what to expect.

Also, I want to offer help. Is there anything I can do to help y'all 
reach a resolution?

Thanks,
wt
-- 
You're more amazing than you think!

  parent reply	other threads:[~2024-04-21  7:14 UTC|newest]

Thread overview: 75+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-04-18 14:06 [PATCH v1 0/2] Fix two regression issues for QCA controllers Zijun Hu
2024-04-18 14:06 ` [PATCH v1 1/2] Revert "Bluetooth: hci_qca: don't use IS_ERR_OR_NULL() with gpiod_get_optional()" Zijun Hu
2024-04-18 14:31   ` Fix two regression issues for QCA controllers bluez.test.bot
2024-04-18 16:52   ` [PATCH v1 1/2] Revert "Bluetooth: hci_qca: don't use IS_ERR_OR_NULL() with gpiod_get_optional()" Krzysztof Kozlowski
2024-04-18 21:16     ` quic_zijuhu
2024-04-18 22:37       ` Krzysztof Kozlowski
2024-04-18 23:17         ` quic_zijuhu
2024-04-19 13:49           ` Krzysztof Kozlowski
2024-04-20  5:25             ` quic_zijuhu
2024-04-20  5:27               ` quic_zijuhu
2024-04-20 11:13               ` Krzysztof Kozlowski
2024-04-20 23:01                 ` quic_zijuhu
2024-04-18 17:00   ` Bartosz Golaszewski
2024-04-18 21:43     ` quic_zijuhu
2024-04-18 22:42       ` Bartosz Golaszewski
2024-04-18 23:36         ` quic_zijuhu
2024-04-19 21:27           ` Bartosz Golaszewski
2024-04-20  5:39             ` quic_zijuhu
2024-04-21  7:14         ` Wren Turkal [this message]
2024-04-21  9:40           ` quic_zijuhu
2024-04-22  5:26             ` Wren Turkal
2024-04-18 14:06 ` [PATCH v1 2/2] Bluetooth: qca: Fix BT enable failure for QCA_QCA6390 after disable then warm reboot Zijun Hu
2024-04-18 16:48   ` Krzysztof Kozlowski
2024-04-18 20:34     ` quic_zijuhu
2024-04-18 20:58       ` Krzysztof Kozlowski
2024-04-18 22:05         ` quic_zijuhu
2024-04-18 22:38           ` Krzysztof Kozlowski
2024-04-18 23:24             ` quic_zijuhu
2024-04-19 21:48 ` [PATCH v1 0/2] Fix two regression issues for QCA controllers Zijun Hu
2024-04-19 21:48   ` [PATCH v2 1/2] Bluetooth: MGMT: Fix failing to MGMT_OP_ADD_UUID/MGMT_OP_REMOVE_UUID Zijun Hu
2024-04-19 22:05     ` quic_zijuhu
2024-04-19 22:12     ` [v2,1/2] " bluez.test.bot
2024-04-19 21:48   ` [PATCH v2 2/2] Bluetooth: qca: Fix BT enable failure for QCA_QCA6390 Zijun Hu
2024-04-19 22:06     ` quic_zijuhu
2024-04-19 22:03 ` [PATCH v3 0/2] Fix two regression issues for QCA controllers Zijun Hu
2024-04-19 22:03   ` [PATCH v3 1/2] Bluetooth: qca: Fix BT enable failure for QCA_QCA6390 Zijun Hu
2024-04-19 22:30     ` Fix two regression issues for QCA controllers bluez.test.bot
2024-04-20 11:03     ` [PATCH v3 1/2] Bluetooth: qca: Fix BT enable failure for QCA_QCA6390 Krzysztof Kozlowski
2024-04-20 21:28       ` quic_zijuhu
2024-04-19 22:03   ` [PATCH v3 2/2] Bluetooth: qca: Fix BT enable failure for QCA_QCA6390 after disable then warm reboot Zijun Hu
2024-04-20 11:07     ` Krzysztof Kozlowski
2024-04-20 21:42       ` quic_zijuhu
2024-04-20 11:01   ` [PATCH v3 0/2] Fix two regression issues for QCA controllers Krzysztof Kozlowski
2024-04-22  7:44     ` Krzysztof Kozlowski
2024-04-22  8:07       ` quic_zijuhu
2024-04-22  8:11         ` Krzysztof Kozlowski
2024-04-22  8:21           ` quic_zijuhu
2024-04-20 22:06   ` [PATCH v4 " Zijun Hu
2024-04-20 22:06     ` [PATCH v4 1/2] Bluetooth: qca: Fix BT enable failure for QCA_QCA6390 Zijun Hu
2024-04-20 22:31       ` Fix two regression issues for QCA controllers bluez.test.bot
2024-04-20 22:06     ` [PATCH v4 2/2] Bluetooth: qca: Fix BT enable failure for QCA_QCA6390 after disable then warm reboot Zijun Hu
2024-04-21  7:44     ` [PATCH v4 0/2] Fix two regression issues for QCA controllers Wren Turkal
2024-04-21  9:30       ` quic_zijuhu
2024-04-21 18:41       ` Krzysztof Kozlowski
2024-04-22  0:14         ` quic_zijuhu
2024-04-22  5:21           ` Wren Turkal
2024-04-22  8:51             ` Bartosz Golaszewski
2024-04-22 10:42               ` Wren Turkal
2024-04-22 13:02                 ` Bartosz Golaszewski
2024-04-24  1:52                   ` Wren Turkal
2024-04-22  5:52           ` Krzysztof Kozlowski
2024-04-22  6:00             ` quic_zijuhu
2024-04-22  7:45               ` Krzysztof Kozlowski
2024-04-22 10:05             ` quic_zijuhu
2024-04-22 12:28               ` Krzysztof Kozlowski
2024-04-21 13:51     ` Krzysztof Kozlowski
2024-04-22  7:38     ` [PATCH v5 " Zijun Hu
2024-04-22  7:38       ` [PATCH v5 1/2] Bluetooth: qca: Fix BT enable failure for QCA_QCA6390 Zijun Hu
2024-04-22  8:36         ` Fix two regression issues for QCA controllers bluez.test.bot
2024-04-22  7:38       ` [PATCH v5 2/2] Bluetooth: qca: Fix BT enable failure for QCA_QCA6390 after disable then warm reboot Zijun Hu
2024-04-22  7:42         ` Krzysztof Kozlowski
2024-04-22 11:25           ` quic_zijuhu
2024-04-22 12:22             ` Krzysztof Kozlowski
2024-04-22 12:59               ` quic_zijuhu
2024-04-25  0:59       ` [PATCH v6 v7] Fix two BT regression issues for QCA6390 Zijun Hu

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