Re: [Ksummit-discuss] [TECH TOPIC] Documentation

Mike Rapoport
2020-06-14T14:13:45Z

On Sun, Jun 14, 2020 at 09:23:41AM -0400, Matthew Wilcox wrote:
> Also W=1 will enable documentation warnings. We can move that to default if we
> want people to take documentation seriously. Last time I tried it added about
> 700 warnings to the build and I didn't have the spoons to make a serious dent
> in fixing those warnings.
>
> Maybe _that_ would be a good beginner task because it doesn't take much in
> depth knowledge of any particular subsystem.

That's true, but unless we pay more attention to include kerneldoc
changes with patches that change APIs we would train many beginners this
way ;-)

> On Sat., Jun. 13, 2020, 12:57 Joe Perches, <joe@perches.com> wrote:
>
> On Sat, 2020-06-13 at 18:42 +0200, Julia Lawall wrote:
> > I tried collecting information about missing or incorrectly formatted
> > function documentation using Coccinelle.  Here is an example of the
> > output:
> >
> > drivers/net/ethernet/freescale/fman/fman.c:2077 fman_register_intr: extra
> names mod, f_isr, h_src_arg
> > drivers/net/ethernet/freescale/fman/fman.c:2077 fman_register_intr:
> missing name isr_cb
> > drivers/net/ethernet/freescale/fman/fman.c:2077 fman_register_intr:
> missing name module
> > drivers/net/ethernet/freescale/fman/fman.c:2077 fman_register_intr:
> missing name src_arg
> > drivers/net/ethernet/freescale/fman/fman.c:2077 fman_register_intr:
> return comment but no return value
> > drivers/net/ethernet/freescale/fman/fman.c:2103 fman_unregister_intr:
> extra names mod
> > drivers/net/ethernet/freescale/fman/fman.c:2103 fman_unregister_intr:
> missing name module
> > drivers/net/ethernet/freescale/fman/fman.c:2103 fman_unregister_intr:
> return comment but no return value
> > drivers/net/ethernet/freescale/fman/fman.c:2355 fman_get_revision: return
> comment but no return value
> > drivers/net/ethernet/freescale/fman/fman.c:2520 fman_bind: extra names
> dev
> > drivers/net/ethernet/freescale/fman/fman.c:2520 fman_bind: missing name
> fm_dev
> > drivers/net/ethernet/freescale/fman/fman.c:2527 fman_has_errata_a050385:
> no comment for fman_has_errata_a050385
>
> just fyi: scripts/kernel-doc already does:
>
> $ ./scripts/kernel-doc drivers/net/ethernet/freescale/fman/fman.c > /dev/
> null
> drivers/net/ethernet/freescale/fman/fman.c:2080: warning: Function
> parameter or member 'module' not described in 'fman_register_intr'
> drivers/net/ethernet/freescale/fman/fman.c:2080: warning: Function
> parameter or member 'isr_cb' not described in 'fman_register_intr'
> drivers/net/ethernet/freescale/fman/fman.c:2080: warning: Function
> parameter or member 'src_arg' not described in 'fman_register_intr'
> drivers/net/ethernet/freescale/fman/fman.c:2080: warning: Excess function
> parameter 'mod' description in 'fman_register_intr'
> drivers/net/ethernet/freescale/fman/fman.c:2080: warning: Excess function
> parameter 'f_isr' description in 'fman_register_intr'
> drivers/net/ethernet/freescale/fman/fman.c:2080: warning: Excess function
> parameter 'h_src_arg' description in 'fman_register_intr'
> drivers/net/ethernet/freescale/fman/fman.c:2105: warning: Function
> parameter or member 'module' not described in 'fman_unregister_intr'
> drivers/net/ethernet/freescale/fman/fman.c:2105: warning: Excess function
> parameter 'mod' description in 'fman_unregister_intr'
> drivers/net/ethernet/freescale/fman/fman.c:2356: warning: Function
> parameter or member 'fman' not described in 'fman_get_revision'
> drivers/net/ethernet/freescale/fman/fman.c:2356: warning: Function
> parameter or member 'rev_info' not described in 'fman_get_revision'
> drivers/net/ethernet/freescale/fman/fman.c:2521: warning: Function
> parameter or member 'fm_dev' not described in 'fman_bind'
> drivers/net/ethernet/freescale/fman/fman.c:2521: warning: Excess function
> parameter 'dev' description in 'fman_bind'
>
>
>
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--
Sincerely yours,
Mike.