Re: patch "firmware loader: allow disabling of udev as firmware loader" added to driver-core tree

From: Jean-Michel Hautbois
Date: Wed Aug 06 2014 - 05:10:53 EST


2014-08-05 21:22 GMT+02:00 Shuah Khan <shuahkhan@xxxxxxxxx>:
> On Tue, Aug 5, 2014 at 10:01 AM, Takashi Iwai <tiwai@xxxxxxx> wrote:
>>> Yes, it worked, if the firmware was in the /lib/firmware directory.
>>
>
> ok it works when the firmware is in /lib/firmware. It sounds to me the
> reason load fails when the firmware is under /sys/class/firmware is
> fw_load_from_user_helper() returns -ENOENT when
> CONFIG_FW_LOADER_USER_HELPER is disabled.
>
> It would be nice to see the entire dmesg with debug enabled though.
>
> -- Shuah

It does not work with the 3.16 kernel even when firmware is in
/lib/firmware, it worked before this patch is applied.
Here is what I got in my dmesg :
[ 0.307856] __allocate_fw_buf: fw-lattice-ecp3.bit buf=bd81a480
[ 0.308029] lattice-ecp3 spi2.3: Direct firmware load for
lattice-ecp3.bit failed with error -2
[ 0.308078] __fw_free_buf: fw-lattice-ecp3.bit buf=bd81a480 data=
(null) size=0
[ 0.308094] lattice-ecp3 spi2.3: Cannot load firmware, aborting

If you want specific messages, please tell me.

Thanks,
JM
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