Re: [PATCH/RFC] usb gadget: fix all Section mismatch warnings

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Randy Dunlap <rdunlap@xxxxxxxxxxxx> writes:
> Fix 41 occurrences of this type of Section mismatch warning
> in g_mass_storage, g_serial, g_cdc, g_multi, g_nokia, g_ether, g_ffs:
> (the 75 number reported earlier contained some duplicates.)
>
> WARNING: drivers/usb/gadget/g_mass_storage.o(.text+0x687a): Section mismatch in reference from the function fsg_bind() to the function .devinit.text:usb_ep_autoconfig()
>
> The function fsg_bind() references
> the function __devinit usb_ep_autoconfig().
> This is often because fsg_bind lacks a __devinit 
> annotation or the annotation of usb_ep_autoconfig is wrong.

The underlying problem is better visible in f_fs.c which must not use
__devinit since it registers a gadget way past the kernel initialisation
(it needs a user space daemon to be running) so in turn the whole
composite layer does not use __devinit.

Furthermore, if you look at g_ffs.c you'll see that it uses f_ecm.c,
f_rndis.c, etc. thus those in turn also cannot use __devinit.  And this
actually applies to any composite function which one would want to use
with f_fs.c

> Signed-off-by: Randy Dunlap <randy.dunlap@xxxxxxxxxx>
> Cc:	Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
> ---
>  include/linux/usb/gadget.h |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> --- lnx-2639-rc1.orig/include/linux/usb/gadget.h
> +++ lnx-2639-rc1/include/linux/usb/gadget.h
> @@ -890,7 +890,7 @@ static inline void usb_free_descriptors(
>  /* utility wrapping a simple endpoint selection policy */
>  
>  extern struct usb_ep *usb_ep_autoconfig(struct usb_gadget *,
> -			struct usb_endpoint_descriptor *) __devinit;
> +			struct usb_endpoint_descriptor *);
>  
>  extern void usb_ep_autoconfig_reset(struct usb_gadget *) __devinit;

I'd remove __devinit from usb_ep_autoconfig_reset().  I mean, it sort of
looks bizarre as the only function with __devinit, isn't it?

Otherwise the patch looks good.

I'm only wondering why hasn't it been noticed earlier.

-- 
Best regards,                                          _     _
 .o. | Liege of Serenly Enlightened Majesty of       o' \,=./ `o
 ..o | Computer Science,  Michal "mina86" Nazarewicz    (o o)
 ooo +-<mina86-mina86.com>-<jid:mina86-jabber.org>--ooO--(_)--Ooo--

Attachment: pgp3B8S64t7iz.pgp
Description: PGP signature


[Index of Archives]     [Linux Media]     [Linux Input]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [Old Linux USB Devel Archive]

  Powered by Linux