linux-kernel - Re: [PATCH] mtd: rawnand: ingenic: fix empty stub helper definitions

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Date:   Tue, 16 May 2023 23:09:07 +0200
From:   Paul Cercueil <paul@...pouillou.net>
To:     Arnd Bergmann <arnd@...nel.org>,
        Harvey Hunt <harveyhuntnexus@...il.com>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Richard Weinberger <richard@....at>,
        Vignesh Raghavendra <vigneshr@...com>
Cc:     Arnd Bergmann <arnd@...db.de>, linux-mips@...r.kernel.org,
        linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mtd: rawnand: ingenic: fix empty stub helper definitions

Hi,

Le mardi 16 mai 2023 à 22:21 +0200, Arnd Bergmann a écrit :
> From: Arnd Bergmann <arnd@...db.de>
> 
> A few functions provide an empty interface definition when
> CONFIG_MTD_NAND_INGENIC_ECC is disabled, but they are accidentally
> defined as global functions in the header:
> 
> drivers/mtd/nand/raw/ingenic/ingenic_ecc.h:39:5: error: no previous
> prototype for 'ingenic_ecc_calculate'
> drivers/mtd/nand/raw/ingenic/ingenic_ecc.h:46:5: error: no previous
> prototype for 'ingenic_ecc_correct'
> drivers/mtd/nand/raw/ingenic/ingenic_ecc.h:53:6: error: no previous
> prototype for 'ingenic_ecc_release'
> drivers/mtd/nand/raw/ingenic/ingenic_ecc.h:57:21: error: no previous
> prototype for 'of_ingenic_ecc_get'
> 
> Turn them into 'static inline' definitions instead.
> 
> Fixes: 15de8c6efd0e ("mtd: rawnand: ingenic: Separate top-level and
> SoC specific code")
> Signed-off-by: Arnd Bergmann <arnd@...db.de>

Good catch.

Reviewed-by: Paul Cercueil <paul@...pouillou.net>

Cheers,
-Paul

> ---
>  drivers/mtd/nand/raw/ingenic/ingenic_ecc.h | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/mtd/nand/raw/ingenic/ingenic_ecc.h
> b/drivers/mtd/nand/raw/ingenic/ingenic_ecc.h
> index 2cda439b5e11..017868f59f22 100644
> --- a/drivers/mtd/nand/raw/ingenic/ingenic_ecc.h
> +++ b/drivers/mtd/nand/raw/ingenic/ingenic_ecc.h
> @@ -36,25 +36,25 @@ int ingenic_ecc_correct(struct ingenic_ecc *ecc,
>  void ingenic_ecc_release(struct ingenic_ecc *ecc);
>  struct ingenic_ecc *of_ingenic_ecc_get(struct device_node *np);
>  #else /* CONFIG_MTD_NAND_INGENIC_ECC */
> -int ingenic_ecc_calculate(struct ingenic_ecc *ecc,
> +static inline int ingenic_ecc_calculate(struct ingenic_ecc *ecc,
>                           struct ingenic_ecc_params *params,
>                           const u8 *buf, u8 *ecc_code)
>  {
>         return -ENODEV;
>  }
>  
> -int ingenic_ecc_correct(struct ingenic_ecc *ecc,
> +static inline int ingenic_ecc_correct(struct ingenic_ecc *ecc,
>                         struct ingenic_ecc_params *params, u8 *buf,
>                         u8 *ecc_code)
>  {
>         return -ENODEV;
>  }
>  
> -void ingenic_ecc_release(struct ingenic_ecc *ecc)
> +static inline void ingenic_ecc_release(struct ingenic_ecc *ecc)
>  {
>  }
>  
> -struct ingenic_ecc *of_ingenic_ecc_get(struct device_node *np)
> +static inline struct ingenic_ecc *of_ingenic_ecc_get(struct
> device_node *np)
>  {
>         return ERR_PTR(-ENODEV);
>  }