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Message-ID: <46C092EB.1070501@amd.com>
Date: Mon, 13 Aug 2007 19:20:43 +0200
From: "Markus Rechberger" <markus.rechberger@....com>
To: "Marcel Holtmann" <marcel@...tmann.org>
cc: linux-kernel@...r.kernel.org, "Jean Delvare" <khali@...ux-fr.org>,
"Greg KH" <greg@...ah.com>
Subject: Re: [PATCH] Firmware class name collision
Hi Marcel,
Marcel Holtmann wrote:
> Hi Markus,
>
>
>> following patch fixes the i2c name collision with i2c-dev.
>>
>> http://mcentral.de/wiki/index.php/Bugtracker#i2c_core_problem
>>
>> This issue has been experienced with em28xx and saa7133 based devices.
>> I discussed that problem with Jean Delvare a while ago and he proposed
>> to add a prefix to the class name.
>>
>> http://mcentral.de/~mrec/patches/firmware_class_name_collision.diff
>>
>> Signed-off-by: Markus Rechberger <markus.rechberger@....com>
>>
>> index b24efd4..bfc54a1 100644
>> --- a/drivers/base/firmware_class.c
>> +++ b/drivers/base/firmware_class.c
>> @@ -297,8 +297,7 @@ firmware_class_timeout(u_long data)
>>
>> static inline void fw_setup_device_id(struct device *f_dev, struct
>> device *dev)
>> {
>> - /* XXX warning we should watch out for name collisions */
>> - strlcpy(f_dev->bus_id, dev->bus_id, BUS_ID_SIZE);
>> + snprintf(f_dev->bus_id, BUS_ID_SIZE, "fw-%s", dev->bus_id);
>> }
>>
>
> I would prefer if we use "firmware-%s" since the "fw" might collide with
> the new Firewire stack. Please change that and I agree.
>
>
firmware-%s sounds more informative and cannot be mistaken with firewire
yes.
Signed-off-by: Markus Rechberger <markus.rechberger@....com>
http://mcentral.de/~mrec/patches/firmware_class_name_collision_2.diff
diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c
index b24efd4..bfc54a1 100644
--- a/drivers/base/firmware_class.c
+++ b/drivers/base/firmware_class.c
@@ -297,8 +297,7 @@ firmware_class_timeout(u_long data)
static inline void fw_setup_device_id(struct device *f_dev, struct
device *dev)
{
- /* XXX warning we should watch out for name collisions */
- strlcpy(f_dev->bus_id, dev->bus_id, BUS_ID_SIZE);
+ snprintf(f_dev->bus_id, BUS_ID_SIZE, "firmware-%s", dev->bus_id);
}
static int fw_register_device(struct device **dev_p, const char *fw_name,
> Acked-by: Marcel Holtmann <marcel@...tmann.org>
>
> Regards
>
> Marcel
>
>
>
>
>
-
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