linux-kernel - Re: [PATCH v5 11/32] mtd: spi-nor: micron-st: unify function names

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Date:   Fri, 25 Feb 2022 13:35:05 +0000
From:   <Tudor.Ambarus@...rochip.com>
To:     <michael@...le.cc>, <linux-mtd@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>
CC:     <p.yadav@...com>, <miquel.raynal@...tlin.com>, <richard@....at>,
        <vigneshr@...com>, <yaliang.wang@...driver.com>
Subject: Re: [PATCH v5 11/32] mtd: spi-nor: micron-st: unify function names

On 2/23/22 15:43, Michael Walle wrote:
> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
> 
> To avoid name clashes unify all the function and static object names and
> use one of the following prefixes which should be sufficiently unique:
>  - <vendor>_nor_
>  - <flash_family>_nor_
>  - <flash_part>_
> 
> There are no functional changes.
> 
> Signed-off-by: Michael Walle <michael@...le.cc>
> Acked-by: Pratyush Yadav <p.yadav@...com>
> ---
>  drivers/mtd/spi-nor/micron-st.c | 34 ++++++++++++++++-----------------
>  1 file changed, 17 insertions(+), 17 deletions(-)
> 
> diff --git a/drivers/mtd/spi-nor/micron-st.c b/drivers/mtd/spi-nor/micron-st.c
> index bb95b1aabf74..7a68f2ad3ea1 100644
> --- a/drivers/mtd/spi-nor/micron-st.c
> +++ b/drivers/mtd/spi-nor/micron-st.c
> @@ -17,7 +17,7 @@
>  #define SPINOR_MT_OCT_DTR      0xe7    /* Enable Octal DTR. */
>  #define SPINOR_MT_EXSPI                0xff    /* Enable Extended SPI (default) */
> 
> -static int spi_nor_micron_octal_dtr_enable(struct spi_nor *nor, bool enable)
> +static int micron_st_nor_octal_dtr_enable(struct spi_nor *nor, bool enable)
>  {
>         struct spi_mem_op op;
>         u8 *buf = nor->bouncebuf;
> @@ -102,7 +102,7 @@ static int spi_nor_micron_octal_dtr_enable(struct spi_nor *nor, bool enable)
> 
>  static void mt35xu512aba_default_init(struct spi_nor *nor)
>  {
> -       nor->params->octal_dtr_enable = spi_nor_micron_octal_dtr_enable;
> +       nor->params->octal_dtr_enable = micron_st_nor_octal_dtr_enable;
>  }
> 
>  static void mt35xu512aba_post_sfdp_fixup(struct spi_nor *nor)
> @@ -130,7 +130,7 @@ static const struct spi_nor_fixups mt35xu512aba_fixups = {
>         .post_sfdp = mt35xu512aba_post_sfdp_fixup,
>  };
> 
> -static const struct flash_info micron_parts[] = {
> +static const struct flash_info micron_nor_parts[] = {
>         { "mt35xu512aba", INFO(0x2c5b1a, 0, 128 * 1024, 512)
>                 FLAGS(USE_FSR)
>                 NO_SFDP_FLAGS(SECT_4K | SPI_NOR_OCTAL_READ |
> @@ -143,7 +143,7 @@ static const struct flash_info micron_parts[] = {
>                 FIXUP_FLAGS(SPI_NOR_4B_OPCODES) },
>  };
> 
> -static const struct flash_info st_parts[] = {
> +static const struct flash_info st_nor_parts[] = {
>         { "n25q016a",    INFO(0x20bb15, 0, 64 * 1024,   32)
>                 NO_SFDP_FLAGS(SECT_4K | SPI_NOR_QUAD_READ) },
>         { "n25q032",     INFO(0x20ba16, 0, 64 * 1024,   64)
> @@ -250,15 +250,15 @@ static const struct flash_info st_parts[] = {
>  };
> 
>  /**
> - * st_micron_set_4byte_addr_mode() - Set 4-byte address mode for ST and Micron
> - * flashes.
> + * micron_st_nor_set_4byte_addr_mode() - Set 4-byte address mode for ST and
> + * Micron flashes.
>   * @nor:       pointer to 'struct spi_nor'.
>   * @enable:    true to enter the 4-byte address mode, false to exit the 4-byte
>   *             address mode.
>   *
>   * Return: 0 on success, -errno otherwise.
>   */
> -static int st_micron_set_4byte_addr_mode(struct spi_nor *nor, bool enable)
> +static int micron_st_nor_set_4byte_addr_mode(struct spi_nor *nor, bool enable)
>  {
>         int ret;
> 
> @@ -273,28 +273,28 @@ static int st_micron_set_4byte_addr_mode(struct spi_nor *nor, bool enable)
>         return spi_nor_write_disable(nor);
>  }
> 
> -static void micron_st_default_init(struct spi_nor *nor)
> +static void micron_st_nor_default_init(struct spi_nor *nor)
>  {
>         nor->flags |= SNOR_F_HAS_LOCK;
>         nor->flags &= ~SNOR_F_HAS_16BIT_SR;
>         nor->params->quad_enable = NULL;
> -       nor->params->set_4byte_addr_mode = st_micron_set_4byte_addr_mode;
> +       nor->params->set_4byte_addr_mode = micron_st_nor_set_4byte_addr_mode;
>  }
> 
> -static const struct spi_nor_fixups micron_st_fixups = {
> -       .default_init = micron_st_default_init,
> +static const struct spi_nor_fixups micron_st_nor_fixups = {
> +       .default_init = micron_st_nor_default_init,
>  };
> 
>  const struct spi_nor_manufacturer spi_nor_micron = {
>         .name = "micron",
> -       .parts = micron_parts,
> -       .nparts = ARRAY_SIZE(micron_parts),
> -       .fixups = &micron_st_fixups,
> +       .parts = micron_nor_parts,
> +       .nparts = ARRAY_SIZE(micron_nor_parts),
> +       .fixups = &micron_st_nor_fixups,
>  };
> 
>  const struct spi_nor_manufacturer spi_nor_st = {
>         .name = "st",
> -       .parts = st_parts,
> -       .nparts = ARRAY_SIZE(st_parts),
> -       .fixups = &micron_st_fixups,
> +       .parts = st_nor_parts,

you have st_nor here

> +       .nparts = ARRAY_SIZE(st_nor_parts),
> +       .fixups = &micron_st_nor_fixups,

and here micron_st, it confuses me.

Any idea when should we use just st, or just micron or micron_st?

Cheers,
ta