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From: Krishna Chomal <krishna.chomal108@gmail.com>
To: "Ilpo Järvinen" <ilpo.jarvinen@linux.intel.com>
Cc: "Arda Doğu Ari" <arfeliousheres@gmail.com>,
	"Hans de Goede" <hansg@kernel.org>,
	platform-driver-x86@vger.kernel.org, stable@vger.kernel.org
Subject: Re: [PATCH] platform/x86: hp-wmi: Fix board_params typo for 8DD6 board
Date: Mon, 31 Aug 2026 23:28:57 +0530	[thread overview]
Message-ID: <apW_MbaycTf33RWu@archlinux> (raw)
In-Reply-To: <8cc78401-cc88-3136-5d72-eaab779a8690@linux.intel.com>

On Mon, Aug 31, 2026 at 07:38:40PM +0300, Ilpo Järvinen wrote:
>On Sat, 29 Aug 2026, Krishna Chomal wrote:
>
>> On Fri, Aug 28, 2026 at 02:51:39AM +0300, Arda Doğu Ari wrote:
>> > When adding support for board 8DD6, &omen_v1_no_ec_thermal_params
>> > was passed as driver_data instead of &omen_v1_no_ec_board_params.
>>
>> Hi,
>>
>> When I added support for 8DD6 [1] &omen_v1_no_ec_thermal_params was
>> indeed the correct quirk. But because Radhey Kalra's board-specific
>> feature data patch [2] was accepted first, my patch probably lead to a
>> merge conflict that had to be resolved manually, which is why this is
>> subtle bug got introduced in the first place.
>
>It's my fault for not catching it (though to my defence, I got sick around
>the time the merge window ends so I had less time for handling the patches
>in the first place and I only now realize compiler won't catch this
>problem for me because the old structs are still there).

No problem, take care.

>> > Because active_board_params expects a pointer to struct
>> > hp_wmi_board_params, dereferencing active_board_params->thermal_profile
>> > results in a type confusion bug and invalid memory access. Update the entry
>> > to point to omen_v1_no_ec_board_params.
>>
>> Thank you very much for observing and sending a patch for the same.
>
>I've queued the patch to the review-ilpo-fixes branch already. If Krishna
>wants to give a reviewed-by tag, I can still add that to the commit.

Reviewed-by: Krishna Chomal <krishna.chomal108@gmail.com>

>-- 
> i.
>
>> [1]:
>> https://lore.kernel.org/platform-driver-x86/20260623141314.33947-1-krishna.chomal108@gmail.com
>> [2]:
>> https://lore.kernel.org/platform-driver-x86/20260615091034.987029-1-radheykalra901@gmail.com
>>
>> > Fixes: a7320d6eb9c42 ("platform/x86: hp-wmi: Add support for OMEN MAX
>> > 16-ak0xxx (8DD6)")
>> > Cc: stable@vger.kernel.org
>> > Signed-off-by: Arda Doğu Ari <arfeliousheres@gmail.com>
>> > ---
>> > drivers/platform/x86/hp/hp-wmi.c | 2 +-
>> > 1 file changed, 1 insertion(+), 1 deletion(-)
>> >
>> > diff --git a/drivers/platform/x86/hp/hp-wmi.c
>> > b/drivers/platform/x86/hp/hp-wmi.c
>> > index b2773fc1aca4..615b4cf6fc45 100644
>> > --- a/drivers/platform/x86/hp/hp-wmi.c
>> > +++ b/drivers/platform/x86/hp/hp-wmi.c
>> > @@ -337,7 +337,7 @@ static const struct dmi_system_id
>> > hp_wmi_feature_boards[] __initconst = {
>> > 	},
>> > 	{
>> > 		.matches = { DMI_MATCH(DMI_BOARD_NAME, "8DD6") },
>> > -		.driver_data = (void *)&omen_v1_no_ec_thermal_params,
>> > +		.driver_data = (void *)&omen_v1_no_ec_board_params,
>> > 	},
>> > 	{
>> > 		.matches = { DMI_MATCH(DMI_BOARD_NAME, "8E35") },
>> > --
>> > 2.55.0
>> >
>>


  reply	other threads:[~2026-08-31 17:59 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-08-27 23:51 [PATCH] platform/x86: hp-wmi: Fix board_params typo for 8DD6 board Arda Doğu Ari
2026-08-29  7:39 ` Krishna Chomal
2026-08-31 16:38   ` Ilpo Järvinen
2026-08-31 17:58     ` Krishna Chomal [this message]
2026-08-31 16:36 ` Ilpo Järvinen

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