On Fri, Sep 05, 2014 at 12:58:53PM -0700, Greg Kroah-Hartman wrote:
OP here.
> On Fri, Sep 05, 2014 at 09:04:44PM +0200, Karol Lewandowski wrote:
> > Applicable for 3.14-stable only.
> >
> > This commit drops duplicate declaration of struct usb_functionfs_descs_head
> > erronousely added in commit 28c5980b54 ("usb: gadget: f_fs: resurect
> > usb_functionfs_descs_head structure").
> >
> > Fix from 28c5980b54 is applicable only for v3.15-rc1 and newer kernels.
> >
> > This fixes error in uapi:
> >
> > /src/linux$ make -C tools usb
> >
> > make: Entering directory '/src/linux/tools'
> > DESCEND usb
> > make[1]: Entering directory '/src/linux/tools/usb'
> > gcc -Wall -Wextra -g -I../include -o testusb testusb.c -lpthread
> > gcc -Wall -Wextra -g -I../include -o ffs-test ffs-test.c -lpthread
> > In file included from ffs-test.c:41:0:
> > ../../include/uapi/linux/usb/functionfs.h:42:8: error: redefinition of ‘struct usb_functionfs_descs_head’
> > struct usb_functionfs_descs_head {
> > ^
> > ../../include/uapi/linux/usb/functionfs.h:31:8: note: originally defined here
> > struct usb_functionfs_descs_head {
> > ^
> >
> > Cc: Michal Nazarewicz <mina86@xxxxxxxxxx>
> > Cc: Felipe Balbi <balbi@xxxxxx>
> > Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
> > Cc: stable@xxxxxxxxxxxxxxx
> > Signed-off-by: Karol Lewandowski <k.lewandowsk@xxxxxxxxxxx>
> > ---
> > include/uapi/linux/usb/functionfs.h | 10 ++--------
> > 1 file changed, 2 insertions(+), 8 deletions(-)
> >
> > diff --git a/include/uapi/linux/usb/functionfs.h b/include/uapi/linux/usb/functionfs.h
> > index 29e9c7a..f279394 100644
> > --- a/include/uapi/linux/usb/functionfs.h
> > +++ b/include/uapi/linux/usb/functionfs.h
> > @@ -27,24 +27,18 @@ struct usb_endpoint_descriptor_no_audio {
> > __u8 bInterval;
> > } __attribute__((packed));
> >
> > -/* Legacy format, deprecated as of 3.14. */
> > -struct usb_functionfs_descs_head {
> > - __le32 magic;
> > - __le32 length;
> > - __le32 fs_count;
> > - __le32 hs_count;
> > -} __attribute__((packed, deprecated));
> >
> > /*
> > * All numbers must be in little endian order.
> > */
> >
> > +/* Legacy format, deprecated as of 3.14. */
> > struct usb_functionfs_descs_head {
> > __le32 magic;
> > __le32 length;
> > __le32 fs_count;
> > __le32 hs_count;
> > -} __attribute__((packed));
> > +} __attribute__((packed, deprecated));
> >
> > /*
> > * Descriptors format:
> > --
> > 2.0.1
>
> Ah, well, instead I should just revert
> 28c5980b5494b8163d6cba5a5007b6ec7e63de66 as it shouldn't have gone to
> 3.14-stable, right? I'll do that for the next round of stable releases
> after this one.
Yes. Revert would certainly be ok and this is what I did first. However,
we would miss 'deprecated' attribute that was added in original patch.
This, and the fact that every new kernel has a note that it's deprecated
from 3.14 convinced me to do a bit more than revert.
Cheers,
Karol Lewandowski
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