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Message-ID: <1670a11e-98d8-1b55-34c0-3369aaa8a615@microchip.com>
Date: Wed, 18 Aug 2021 05:12:51 +0000
From: <Claudiu.Beznea@...rochip.com>
To: <rdunlap@...radead.org>, <linux-kernel@...r.kernel.org>
CC: <lkp@...el.com>, <mturquette@...libre.com>, <sboyd@...nel.org>,
<Eugen.Hristev@...rochip.com>, <linux-clk@...r.kernel.org>,
<linux-doc@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>, <corbet@....net>
Subject: Re: [PATCH] clk/at91: remove kernel-doc warnings in sama7g5.c
Hi Randy,
On 10.08.2021 03:54, Randy Dunlap wrote:
> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
>
> Fix multiple kernel-doc warnings in sama7g5.c. There are several
> enums and structs that were not identified as such.
> There are also several anonymous structs (that scripts/kernel-doc
> has problems with), so add struct names to them.
>
> Fixes the following warnings:
>
> drivers/clk/at91/sama7g5.c:39: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
> * PLL clocks identifiers
> drivers/clk/at91/sama7g5.c:60: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
> * PLL type identifiers
> drivers/clk/at91/sama7g5.c:122: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
> * PLL clocks description
> drivers/clk/at91/sama7g5.c:289: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
> * Master clock (MCK[1..4]) description
> drivers/clk/at91/sama7g5.c:341: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
> * System clock description
> drivers/clk/at91/sama7g5.c:365: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
> * Peripheral clock description
> drivers/clk/at91/sama7g5.c:453: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
> * Generic clock description
> drivers/clk/at91/sama7g5.c:339: warning: Function parameter or member 'ep_chg_id' not described in 'master_clock'
>
> Some kernel-doc warnings are still printed, but they are all due to
> problems in the kernel-doc script (if anyone is interested in playing
> with some Perl :). These warnings are:
>
> sama7g5.c:287: warning: Function parameter or member '{' not described in 'sama7g5_plls'
> sama7g5.c:287: warning: Function parameter or member '' not described in 'sama7g5_plls'
> sama7g5.c:287: warning: Function parameter or member '}' not described in 'sama7g5_plls'
> sama7g5.c:339: warning: Function parameter or member 'sama7g5_mckx' not described in 'master_clock'
> sama7g5.c:339: warning: Function parameter or member '}' not described in 'master_clock'
> sama7g5.c:360: warning: Function parameter or member 'sama7g5_systemck' not described in 'system_clock'
> sama7g5.c:451: warning: Function parameter or member 'sama7g5_periphck' not described in 'periph_clock'
> sama7g5.c:451: warning: Function parameter or member '' not described in 'periph_clock'
> sama7g5.c:451: warning: Function parameter or member '}' not described in 'periph_clock'
> sama7g5.c:841: warning: Function parameter or member 'sama7g5_gck' not described in 'generic_clock'
> sama7g5.c:841: warning: Function parameter or member '}' not described in 'generic_clock'
What about keeping only one '*' instead of '**' where necessary as these
data structures are only local to sama7g5.c file (according to
Documentation/doc-guide/kernel-doc.rst "Functions and data structures in
header files which are intended to be used by modules should also have
kernel-doc comments."). This way all the warnings will be gone.
Thank you,
Claudiu Beznea
>
> Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
> Reported-by: kernel test robot <lkp@...el.com>
> Cc: Claudiu Beznea <claudiu.beznea@...rochip.com>
> Cc: Michael Turquette <mturquette@...libre.com>
> Cc: Stephen Boyd <sboyd@...nel.org>
> Cc: Eugen Hristev <eugen.hristev@...rochip.com>
> Cc: linux-clk@...r.kernel.org
> Cc: linux-doc@...r.kernel.org
> Cc: linux-arm-kernel@...ts.infradead.org
> Cc: Jonathan Corbet <corbet@....net>
> ---
> drivers/clk/at91/sama7g5.c | 27 ++++++++++++++-------------
> 1 file changed, 14 insertions(+), 13 deletions(-)
>
> --- linux-next-20210809.orig/drivers/clk/at91/sama7g5.c
> +++ linux-next-20210809/drivers/clk/at91/sama7g5.c
> @@ -36,7 +36,7 @@ static DEFINE_SPINLOCK(pmc_mck0_lock);
> static DEFINE_SPINLOCK(pmc_mckX_lock);
>
> /**
> - * PLL clocks identifiers
> + * enum pll_ids - PLL clocks identifiers
> * @PLL_ID_CPU: CPU PLL identifier
> * @PLL_ID_SYS: System PLL identifier
> * @PLL_ID_DDR: DDR PLL identifier
> @@ -44,6 +44,7 @@ static DEFINE_SPINLOCK(pmc_mckX_lock);
> * @PLL_ID_BAUD: Baud PLL identifier
> * @PLL_ID_AUDIO: Audio PLL identifier
> * @PLL_ID_ETH: Ethernet PLL identifier
> + * @PLL_ID_MAX: Number of PLL_ID values (1 more than the last valid PLL_ID)
> */
> enum pll_ids {
> PLL_ID_CPU,
> @@ -57,7 +58,7 @@ enum pll_ids {
> };
>
> /**
> - * PLL type identifiers
> + * enum pll_type - PLL type identifiers
> * @PLL_TYPE_FRAC: fractional PLL identifier
> * @PLL_TYPE_DIV: divider PLL identifier
> */
> @@ -119,7 +120,7 @@ static const struct clk_pll_characterist
> };
>
> /**
> - * PLL clocks description
> + * struct sama7g5_plls - PLL clocks description
> * @n: clock name
> * @p: clock parent
> * @l: clock layout
> @@ -128,7 +129,7 @@ static const struct clk_pll_characterist
> * @f: clock flags
> * @eid: export index in sama7g5->chws[] array
> */
> -static const struct {
> +static const struct sama7g5_plls {
> const char *n;
> const char *p;
> const struct clk_pll_layout *l;
> @@ -286,17 +287,17 @@ static const struct {
> };
>
> /**
> - * Master clock (MCK[1..4]) description
> + * struct master_clock - Master clock (MCK[1..4]) description
> * @n: clock name
> * @ep: extra parents names array
> - * @ep_chg_chg_id: index in parents array that specifies the changeable
> + * @ep_chg_id: index in parents array that specifies the changeable
> * parent
> * @ep_count: extra parents count
> * @ep_mux_table: mux table for extra parents
> * @id: clock id
> * @c: true if clock is critical and cannot be disabled
> */
> -static const struct {
> +static const struct master_clock {
> const char *n;
> const char *ep[4];
> int ep_chg_id;
> @@ -338,12 +339,12 @@ static const struct {
> };
>
> /**
> - * System clock description
> + * struct system_clock - System clock description
> * @n: clock name
> * @p: clock parent name
> * @id: clock id
> */
> -static const struct {
> +static const struct system_clock {
> const char *n;
> const char *p;
> u8 id;
> @@ -362,14 +363,14 @@ static const struct {
> static u32 sama7g5_prog_mux_table[] = { 0, 1, 2, 5, 6, 7, 8, 9, 10, };
>
> /**
> - * Peripheral clock description
> + * struct periph_clock - Peripheral clock description
> * @n: clock name
> * @p: clock parent name
> * @r: clock range values
> * @id: clock id
> * @chgp: index in parent array of the changeable parent
> */
> -static const struct {
> +static const struct periph_clock {
> const char *n;
> const char *p;
> struct clk_range r;
> @@ -450,7 +451,7 @@ static const struct {
> };
>
> /**
> - * Generic clock description
> + * struct generic_clock - Generic clock description
> * @n: clock name
> * @pp: PLL parents
> * @pp_mux_table: PLL parents mux table
> @@ -459,7 +460,7 @@ static const struct {
> * @pp_count: PLL parents count
> * @id: clock id
> */
> -static const struct {
> +static const struct generic_clock {
> const char *n;
> const char *pp[8];
> const char pp_mux_table[8];
>
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