Em Wed, 20 Jul 2016 20:35:09 +0200
Markus Heiser <markus.heiser@xxxxxxxxxxx> escreveu:
> Am 20.07.2016 um 14:20 schrieb Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxxx>:
>
> > Em Tue, 19 Jul 2016 14:36:50 +0200
> > Daniel Vetter <daniel@xxxxxxxx> escreveu:
> >
> >> On Tue, Jul 19, 2016 at 01:42:55PM +0200, Daniel Vetter wrote:
> >>> These are the leftovers I could only track down using keep_warnings =
> >>> True. For some of them we might want to update our style guide on how
> >>> to reference structures and constants, not sure ...
> >>>
> >>> Cc: Markus Heiser <markus.heiser@xxxxxxxxxxx>
> >>> Cc: Jonathan Corbet <corbet@xxxxxxx>
> >>> Cc: linux-doc@xxxxxxxxxxxxxxx
> >>> Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxxx>
> >>
> >> Aside: With this and the latest docs-next branch from Jon it's possible to
> >> compile test doc changes (e.g. with git rebase -x) using:
> >>
> >> $ make IGNORE_DOCBOOKS=1 SPHINXOPTS=-W htmldocs
> >
> > Unfortunately, we'll not get rid of Sphinx warnings any time soon.
> >
> > The Sphinx function parser is really broken, even on version 1.4.5.
> >
> > Every time Sphinx finds a typedef argument or return value, like here:
> >
> > ssize_t dvb_ringbuffer_pkt_read_user (struct dvb_ringbuffer * rbuf, size_t idx, int offset, u8 __user * buf, size_t len);
> >
> > It produces a very ugly noisy warning:
> >
> > ./drivers/media/dvb-core/dvb_ringbuffer.h:149: WARNING: Error when parsing function declaration.
> > If the function has no return type:
> > Error in declarator or parameters and qualifiers
> > Invalid definition: Expecting "(" in parameters_and_qualifiers. [error at 8]
> > ssize_t dvb_ringbuffer_pkt_read_user (struct dvb_ringbuffer * rbuf, size_t idx, int offset, u8 __user * buf, size_t len)
> > --------^
> > If the function has a return type:
> > Error in declarator or parameters and qualifiers
> > If pointer to member declarator:
> > Invalid definition: Expected '::' in pointer to member (function). [error at 37]
> > ssize_t dvb_ringbuffer_pkt_read_user (struct dvb_ringbuffer * rbuf, size_t idx, int offset, u8 __user * buf, size_t len)
> > -------------------------------------^
> > If declarator-id:
> > Invalid definition: Expecting "," or ")" in parameters_and_qualifiers, got "*". [error at 102]
> > ssize_t dvb_ringbuffer_pkt_read_user (struct dvb_ringbuffer * rbuf, size_t idx, int offset, u8 __user * buf, size_t len)
> > ------------------------------------------------------------------------------------------------------^
> >
>
> Aaargh ... it seems you are right.
Just sent a fix for the above:
https://git.linuxtv.org/mchehab/experimental.git/commit/?h=docs-next&id=263bbae9c1bf6ea7c14dad8c29f9b3148b2b5de7
I was able to fix the other two typedef warnings with:
https://git.linuxtv.org/mchehab/experimental.git/commit/?h=docs-next&id=b32909983ab03e03504bb44d5c66f44b9d57adc3
Basically, I had to:
1) Make kernel-doc ignore __user;
2) typedef the function argument for v4l2_ctrl_add_handler();
3) not let kernel-doc generate :cpp:function: for function typedefs.
With DocBook, we used kernel-doc to produce a page for typedef
functions. Now, such capability got lost. Not sure if/how
Sphinx would support it.
Thanks,
Mauro
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