On Mon, 18 Sep 2006 09:27:59 -0400 Robin Getz wrote:
> It says in the comments in drivers/char/random.c that:
>
> * Exported interfaces ---- input
> * ==============================
> *
> * The current exported interfaces for gathering environmental noise
> * from the devices are:
> *
> * void add_input_randomness(unsigned int type, unsigned int code,
> * unsigned int value);
> * void add_interrupt_randomness(int irq);
> *
> * add_input_randomness() uses the input layer interrupt timing, as well as
> * the event type information from the hardware.
> *
> [..snip..]
>
> If "add_input_randomness" is an "Exported interface" why is it not an
> exported symbol?
>
> If I build drivers/input/input.ko, I get the error:
>
> ** Warning: "add_input_randomness" [drivers/input/input.ko] undefined!
Yep, confirmed (after disabling CONFIG_VT and CONFIG_USB_HID)
(on 2.6.18).
On x86_64, I get both of these:
WARNING: "kobject_get_path" [drivers/input/input.ko] undefined!
WARNING: "add_input_randomness" [drivers/input/input.ko] undefined!
With USB_HID enabled, I also get:
LD .tmp_vmlinux1
drivers/built-in.o: In function `hidinput_disconnect':
(.text+0x10741e): undefined reference to `input_unregister_device'
drivers/built-in.o: In function `hidinput_connect':
(.text+0x107526): undefined reference to `input_allocate_device'
drivers/built-in.o: In function `hidinput_connect':
(.text+0x107547): undefined reference to `input_free_device'
drivers/built-in.o: In function `hidinput_connect':
(.text+0x1091a2): undefined reference to `input_register_device'
drivers/built-in.o: In function `hidinput_connect':
(.text+0x1091f2): undefined reference to `input_register_device'
drivers/built-in.o: In function `hidinput_hid_event':
(.text+0x10942f): undefined reference to `input_event'
drivers/built-in.o: In function `hidinput_hid_event':
(.text+0x1094bd): undefined reference to `input_event'
drivers/built-in.o: In function `hidinput_hid_event':
(.text+0x109507): undefined reference to `input_event'
drivers/built-in.o: In function `hidinput_hid_event':
(.text+0x109577): undefined reference to `input_event'
drivers/built-in.o: In function `hidinput_hid_event':
(.text+0x10959b): undefined reference to `input_event'
drivers/built-in.o:(.text+0x1095dc): more undefined references to `input_event' follow
so using INPUT=m has a few problems.
ISTM that we should at least fix the first 2 (by EXPORTing them).
or we don't allow INPUT=m.
You want to send a patch?
---
~Randy
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