From: Matthew Garrett <mjg59@srcf.ucam.org>
To: Jean Delvare <khali@linux-fr.org>
Cc: linux-acpi@vger.kernel.org,
LM Sensors <lm-sensors@lm-sensors.org>,
Len Brown <lenb@kernel.org>
Subject: Re: [PATCH] hwmon: (asus_atk0110) Don't load if ACPI resources aren't enforced
Date: Tue, 30 Mar 2010 22:10:49 +0100 [thread overview]
Message-ID: <20100330211049.GA1524@srcf.ucam.org> (raw)
In-Reply-To: <20100330223251.76c6b000@hyperion.delvare>
On Tue, Mar 30, 2010 at 10:32:51PM +0200, Jean Delvare wrote:
> Sure, but why do you insist on having the user configure this manually
> when we can automate this at the kernel level? When
> acpi_enforce_resouce=yes, the kernel doesn't let non-ACPI driver be
> loaded, so I fail to see why we let ACPI drivers (for which we also
> have native drivers) load when acpi_enforce_resouce=no.
Because the situation with the asus driver loaded isn't obviously any
worse than not having it loaded. The user is telling us that they're
happy with racy access to their hwmon hardware. Automatically blocking
the loading of the ACPI driver does nothing other than imply to the user
that things are safe, when in reality they're anything but.
--
Matthew Garrett | mjg59@srcf.ucam.org
WARNING: multiple messages have this Message-ID (diff)
From: Matthew Garrett <mjg59@srcf.ucam.org>
To: Jean Delvare <khali@linux-fr.org>
Cc: linux-acpi@vger.kernel.org,
LM Sensors <lm-sensors@lm-sensors.org>,
Len Brown <lenb@kernel.org>
Subject: Re: [lm-sensors] [PATCH] hwmon: (asus_atk0110) Don't load if ACPI
Date: Tue, 30 Mar 2010 21:10:49 +0000 [thread overview]
Message-ID: <20100330211049.GA1524@srcf.ucam.org> (raw)
In-Reply-To: <20100330223251.76c6b000@hyperion.delvare>
On Tue, Mar 30, 2010 at 10:32:51PM +0200, Jean Delvare wrote:
> Sure, but why do you insist on having the user configure this manually
> when we can automate this at the kernel level? When
> acpi_enforce_resouce=yes, the kernel doesn't let non-ACPI driver be
> loaded, so I fail to see why we let ACPI drivers (for which we also
> have native drivers) load when acpi_enforce_resouce=no.
Because the situation with the asus driver loaded isn't obviously any
worse than not having it loaded. The user is telling us that they're
happy with racy access to their hwmon hardware. Automatically blocking
the loading of the ACPI driver does nothing other than imply to the user
that things are safe, when in reality they're anything but.
--
Matthew Garrett | mjg59@srcf.ucam.org
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next prev parent reply other threads:[~2010-03-30 21:10 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-09 12:56 [lm-sensors] [PATCH] hwmon: (asus_atk0110) Don't load if ACPI Jean Delvare
2010-03-09 20:20 ` Luca Tettamanti
2010-03-30 10:03 ` [lm-sensors] [PATCH] hwmon: (asus_atk0110) Don't load if ACPI resources aren't enforced Jean Delvare
2010-03-30 10:03 ` [lm-sensors] [PATCH] hwmon: (asus_atk0110) Don't load if ACPI Jean Delvare
2010-03-30 13:21 ` [lm-sensors] [PATCH] hwmon: (asus_atk0110) Don't load if ACPI resources aren't enforced Matthew Garrett
2010-03-30 13:21 ` [lm-sensors] [PATCH] hwmon: (asus_atk0110) Don't load if Matthew Garrett
2010-03-30 19:47 ` [PATCH] hwmon: (asus_atk0110) Don't load if ACPI resources aren't enforced Jean Delvare
2010-03-30 19:47 ` [lm-sensors] [PATCH] hwmon: (asus_atk0110) Don't load if ACPI Jean Delvare
2010-03-30 19:48 ` [PATCH] hwmon: (asus_atk0110) Don't load if ACPI resources aren't enforced Matthew Garrett
2010-03-30 19:48 ` [lm-sensors] [PATCH] hwmon: (asus_atk0110) Don't load if ACPI Matthew Garrett
2010-03-30 20:32 ` [PATCH] hwmon: (asus_atk0110) Don't load if ACPI resources aren't enforced Jean Delvare
2010-03-30 20:32 ` [lm-sensors] [PATCH] hwmon: (asus_atk0110) Don't load if ACPI Jean Delvare
2010-03-30 21:10 ` Matthew Garrett [this message]
2010-03-30 21:10 ` Matthew Garrett
2010-03-30 21:45 ` [lm-sensors] [PATCH] hwmon: (asus_atk0110) Don't load if ACPI resources aren't enforced Luca Tettamanti
2010-03-30 21:45 ` [lm-sensors] [PATCH] hwmon: (asus_atk0110) Don't load if ACPI Luca Tettamanti
2010-03-30 21:53 ` [lm-sensors] [PATCH] hwmon: (asus_atk0110) Don't load if ACPI resources aren't enforced Matthew Garrett
2010-03-30 21:53 ` [lm-sensors] [PATCH] hwmon: (asus_atk0110) Don't load if Matthew Garrett
2010-03-31 7:30 ` [lm-sensors] [PATCH] hwmon: (asus_atk0110) Don't load if ACPI resources aren't enforced Jean Delvare
2010-03-31 7:30 ` [lm-sensors] [PATCH] hwmon: (asus_atk0110) Don't load if ACPI Jean Delvare
2010-03-31 12:51 ` [lm-sensors] [PATCH] hwmon: (asus_atk0110) Don't load if ACPI resources aren't enforced Matthew Garrett
2010-03-31 12:51 ` [lm-sensors] [PATCH] hwmon: (asus_atk0110) Don't load if Matthew Garrett
2010-03-31 13:25 ` [lm-sensors] [PATCH] hwmon: (asus_atk0110) Don't load if ACPI resources aren't enforced Jean Delvare
2010-03-31 13:25 ` [lm-sensors] [PATCH] hwmon: (asus_atk0110) Don't load if ACPI Jean Delvare
2010-03-31 13:27 ` [lm-sensors] [PATCH] hwmon: (asus_atk0110) Don't load if ACPI resources aren't enforced Matthew Garrett
2010-03-31 13:27 ` [lm-sensors] [PATCH] hwmon: (asus_atk0110) Don't load if Matthew Garrett
2010-03-31 13:37 ` [lm-sensors] [PATCH] hwmon: (asus_atk0110) Don't load if ACPI resources aren't enforced Jean Delvare
2010-03-31 13:37 ` [lm-sensors] [PATCH] hwmon: (asus_atk0110) Don't load if ACPI Jean Delvare
2010-03-31 7:42 ` [PATCH] hwmon: (asus_atk0110) Don't load if ACPI resources aren't enforced Jean Delvare
2010-03-31 7:42 ` [lm-sensors] [PATCH] hwmon: (asus_atk0110) Don't load if ACPI Jean Delvare
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