diff mbox series

mtd: spi-nor: Get rid of duplicated argument in spi_nor_parse_sfdp()

Message ID 20210204174507.593419-1-tudor.ambarus@microchip.com
State Changes Requested
Delegated to: Ambarus Tudor
Headers show
Series mtd: spi-nor: Get rid of duplicated argument in spi_nor_parse_sfdp() | expand

Commit Message

Tudor Ambarus Feb. 4, 2021, 5:45 p.m. UTC
spi_nor_parse_sfdp(nor, nor->params);
passes for the second argument a member within the first argument.
Drop the second argument and obtain it directly from the first,
and do it across all the children functions. This is a follow up for
'commit 69a8eed58cc0 ("mtd: spi-nor: Don't copy self-pointing struct around")'

Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
---
 drivers/mtd/spi-nor/core.c     | 10 ++--
 drivers/mtd/spi-nor/core.h     |  6 +--
 drivers/mtd/spi-nor/issi.c     |  3 +-
 drivers/mtd/spi-nor/macronix.c |  3 +-
 drivers/mtd/spi-nor/sfdp.c     | 87 +++++++++++++---------------------
 drivers/mtd/spi-nor/sfdp.h     |  3 +-
 drivers/mtd/spi-nor/spansion.c | 12 ++---
 drivers/mtd/spi-nor/winbond.c  |  3 +-
 8 files changed, 49 insertions(+), 78 deletions(-)

Comments

Pratyush Yadav Feb. 5, 2021, 1:46 p.m. UTC | #1
On 04/02/21 07:45PM, Tudor Ambarus wrote:
> spi_nor_parse_sfdp(nor, nor->params);
> passes for the second argument a member within the first argument.
> Drop the second argument and obtain it directly from the first,
> and do it across all the children functions. This is a follow up for
> 'commit 69a8eed58cc0 ("mtd: spi-nor: Don't copy self-pointing struct around")'
> 
> Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
> ---
>  drivers/mtd/spi-nor/core.c     | 10 ++--
>  drivers/mtd/spi-nor/core.h     |  6 +--
>  drivers/mtd/spi-nor/issi.c     |  3 +-
>  drivers/mtd/spi-nor/macronix.c |  3 +-
>  drivers/mtd/spi-nor/sfdp.c     | 87 +++++++++++++---------------------
>  drivers/mtd/spi-nor/sfdp.h     |  3 +-
>  drivers/mtd/spi-nor/spansion.c | 12 ++---
>  drivers/mtd/spi-nor/winbond.c  |  3 +-
>  8 files changed, 49 insertions(+), 78 deletions(-)
> 
[...]
> @@ -945,13 +935,11 @@ static int spi_nor_parse_smpt(struct spi_nor *nor,
>   * @nor:		pointer to a 'struct spi_nor'.
>   * @param_header:	pointer to the 'struct sfdp_parameter_header' describing
>   *			the 4-Byte Address Instruction Table length and version.
> - * @params:		pointer to the 'struct spi_nor_flash_parameter' to be.
>   *
>   * Return: 0 on success, -errno otherwise.
>   */
>  static int spi_nor_parse_4bait(struct spi_nor *nor,
> -			       const struct sfdp_parameter_header *param_header,
> -			       struct spi_nor_flash_parameter *params)
> +			       const struct sfdp_parameter_header *param_header)
>  {
>  	static const struct sfdp_4bait reads[] = {
>  		{ SNOR_HWCAPS_READ,		BIT(0) },
> @@ -975,8 +963,8 @@ static int spi_nor_parse_4bait(struct spi_nor *nor,
>  		{ 0u /* not used */,		BIT(11) },
>  		{ 0u /* not used */,		BIT(12) },
>  	};
> -	struct spi_nor_pp_command *params_pp = params->page_programs;
> -	struct spi_nor_erase_map *map = &params->erase_map;
> +	struct spi_nor_pp_command *params_pp = nor->params->page_programs;
> +	struct spi_nor_erase_map *map = &nor->params->erase_map;
>  	struct spi_nor_erase_type *erase_type = map->erase_type;
>  	u32 *dwords;
>  	size_t len;
> @@ -1013,7 +1001,7 @@ static int spi_nor_parse_4bait(struct spi_nor *nor,
>  		const struct sfdp_4bait *read = &reads[i];
>  
>  		discard_hwcaps |= read->hwcaps;
> -		if ((params->hwcaps.mask & read->hwcaps) &&
> +		if ((nor->params->hwcaps.mask & read->hwcaps) &&
>  		    (dwords[0] & read->supported_bit))
>  			read_hwcaps |= read->hwcaps;
>  	}
> @@ -1029,8 +1017,8 @@ static int spi_nor_parse_4bait(struct spi_nor *nor,
>  		/*
>  		 * The 4 Byte Address Instruction (Optional) Table is the only
>  		 * SFDP table that indicates support for Page Program Commands.
> -		 * Bypass the params->hwcaps.mask and consider 4BAIT the biggest
> -		 * authority for specifying Page Program support.
> +		 * Bypass the nor->params->hwcaps.mask and consider 4BAIT the
> +		 * biggest authority for specifying Page Program support.
>  		 */
>  		discard_hwcaps |= program->hwcaps;
>  		if (dwords[0] & program->supported_bit)
> @@ -1064,12 +1052,12 @@ static int spi_nor_parse_4bait(struct spi_nor *nor,
>  	 * Discard all operations from the 4-byte instruction set which are
>  	 * not supported by this memory.
>  	 */
> -	params->hwcaps.mask &= ~discard_hwcaps;
> -	params->hwcaps.mask |= (read_hwcaps | pp_hwcaps);
> +	nor->params->hwcaps.mask &= ~discard_hwcaps;
> +	nor->params->hwcaps.mask |= (read_hwcaps | pp_hwcaps);
>  
>  	/* Use the 4-byte address instruction set. */
>  	for (i = 0; i < SNOR_CMD_READ_MAX; i++) {
> -		struct spi_nor_read_command *read_cmd = &params->reads[i];
> +		struct spi_nor_read_command *read_cmd = &nor->params->reads[i];

Nitpick: 'nor->params' is used in multiple places in this function. 
Might be worth it to make it a local variable.

Either way,

Reviewed-by: Pratyush Yadav <p.yadav@ti.com>

>  
>  		read_cmd->opcode = spi_nor_convert_3to4_read(read_cmd->opcode);
>  	}
[...]
diff mbox series

Patch

diff --git a/drivers/mtd/spi-nor/core.c b/drivers/mtd/spi-nor/core.c
index c50b30fbb912..2b3b977626af 100644
--- a/drivers/mtd/spi-nor/core.c
+++ b/drivers/mtd/spi-nor/core.c
@@ -2624,22 +2624,20 @@  void spi_nor_init_uniform_erase_map(struct spi_nor_erase_map *map,
 
 int spi_nor_post_bfpt_fixups(struct spi_nor *nor,
 			     const struct sfdp_parameter_header *bfpt_header,
-			     const struct sfdp_bfpt *bfpt,
-			     struct spi_nor_flash_parameter *params)
+			     const struct sfdp_bfpt *bfpt)
 {
 	int ret;
 
 	if (nor->manufacturer && nor->manufacturer->fixups &&
 	    nor->manufacturer->fixups->post_bfpt) {
 		ret = nor->manufacturer->fixups->post_bfpt(nor, bfpt_header,
-							   bfpt, params);
+							   bfpt);
 		if (ret)
 			return ret;
 	}
 
 	if (nor->info->fixups && nor->info->fixups->post_bfpt)
-		return nor->info->fixups->post_bfpt(nor, bfpt_header, bfpt,
-						    params);
+		return nor->info->fixups->post_bfpt(nor, bfpt_header, bfpt);
 
 	return 0;
 }
@@ -2894,7 +2892,7 @@  static void spi_nor_sfdp_init_params(struct spi_nor *nor)
 
 	memcpy(&sfdp_params, nor->params, sizeof(sfdp_params));
 
-	if (spi_nor_parse_sfdp(nor, nor->params)) {
+	if (spi_nor_parse_sfdp(nor)) {
 		memcpy(nor->params, &sfdp_params, sizeof(*nor->params));
 		nor->addr_width = 0;
 		nor->flags &= ~SNOR_F_4B_OPCODES;
diff --git a/drivers/mtd/spi-nor/core.h b/drivers/mtd/spi-nor/core.h
index 4a3f7f150b5d..db07832ee66c 100644
--- a/drivers/mtd/spi-nor/core.h
+++ b/drivers/mtd/spi-nor/core.h
@@ -261,8 +261,7 @@  struct spi_nor_fixups {
 	void (*default_init)(struct spi_nor *nor);
 	int (*post_bfpt)(struct spi_nor *nor,
 			 const struct sfdp_parameter_header *bfpt_header,
-			 const struct sfdp_bfpt *bfpt,
-			 struct spi_nor_flash_parameter *params);
+			 const struct sfdp_bfpt *bfpt);
 	void (*post_sfdp)(struct spi_nor *nor);
 };
 
@@ -470,8 +469,7 @@  void spi_nor_init_uniform_erase_map(struct spi_nor_erase_map *map,
 
 int spi_nor_post_bfpt_fixups(struct spi_nor *nor,
 			     const struct sfdp_parameter_header *bfpt_header,
-			     const struct sfdp_bfpt *bfpt,
-			     struct spi_nor_flash_parameter *params);
+			     const struct sfdp_bfpt *bfpt);
 
 static struct spi_nor __maybe_unused *mtd_to_spi_nor(struct mtd_info *mtd)
 {
diff --git a/drivers/mtd/spi-nor/issi.c b/drivers/mtd/spi-nor/issi.c
index ffcb60e54a80..1e5bb5408b68 100644
--- a/drivers/mtd/spi-nor/issi.c
+++ b/drivers/mtd/spi-nor/issi.c
@@ -11,8 +11,7 @@ 
 static int
 is25lp256_post_bfpt_fixups(struct spi_nor *nor,
 			   const struct sfdp_parameter_header *bfpt_header,
-			   const struct sfdp_bfpt *bfpt,
-			   struct spi_nor_flash_parameter *params)
+			   const struct sfdp_bfpt *bfpt)
 {
 	/*
 	 * IS25LP256 supports 4B opcodes, but the BFPT advertises a
diff --git a/drivers/mtd/spi-nor/macronix.c b/drivers/mtd/spi-nor/macronix.c
index 9203abaac229..6c2680b4cdad 100644
--- a/drivers/mtd/spi-nor/macronix.c
+++ b/drivers/mtd/spi-nor/macronix.c
@@ -11,8 +11,7 @@ 
 static int
 mx25l25635_post_bfpt_fixups(struct spi_nor *nor,
 			    const struct sfdp_parameter_header *bfpt_header,
-			    const struct sfdp_bfpt *bfpt,
-			    struct spi_nor_flash_parameter *params)
+			    const struct sfdp_bfpt *bfpt)
 {
 	/*
 	 * MX25L25635F supports 4B opcodes but MX25L25635E does not.
diff --git a/drivers/mtd/spi-nor/sfdp.c b/drivers/mtd/spi-nor/sfdp.c
index 6ee7719e5903..f6fe38ea000f 100644
--- a/drivers/mtd/spi-nor/sfdp.c
+++ b/drivers/mtd/spi-nor/sfdp.c
@@ -405,8 +405,6 @@  static void spi_nor_regions_sort_erase_types(struct spi_nor_erase_map *map)
  * @nor:		pointer to a 'struct spi_nor'
  * @bfpt_header:	pointer to the 'struct sfdp_parameter_header' describing
  *			the Basic Flash Parameter Table length and version
- * @params:		pointer to the 'struct spi_nor_flash_parameter' to be
- *			filled
  *
  * The Basic Flash Parameter Table is the main and only mandatory table as
  * defined by the SFDP (JESD216) specification.
@@ -431,9 +429,9 @@  static void spi_nor_regions_sort_erase_types(struct spi_nor_erase_map *map)
  * Return: 0 on success, -errno otherwise.
  */
 static int spi_nor_parse_bfpt(struct spi_nor *nor,
-			      const struct sfdp_parameter_header *bfpt_header,
-			      struct spi_nor_flash_parameter *params)
+			      const struct sfdp_parameter_header *bfpt_header)
 {
+	struct spi_nor_flash_parameter *params = nor->params;
 	struct spi_nor_erase_map *map = &params->erase_map;
 	struct spi_nor_erase_type *erase_type = map->erase_type;
 	struct sfdp_bfpt bfpt;
@@ -552,8 +550,7 @@  static int spi_nor_parse_bfpt(struct spi_nor *nor,
 
 	/* Stop here if not JESD216 rev A or later. */
 	if (bfpt_header->length == BFPT_DWORD_MAX_JESD216)
-		return spi_nor_post_bfpt_fixups(nor, bfpt_header, &bfpt,
-						params);
+		return spi_nor_post_bfpt_fixups(nor, bfpt_header, &bfpt);
 
 	/* Page size: this field specifies 'N' so the page size = 2^N bytes. */
 	val = bfpt.dwords[BFPT_DWORD(11)];
@@ -614,8 +611,8 @@  static int spi_nor_parse_bfpt(struct spi_nor *nor,
 
 	/* Stop here if not JESD216 rev C or later. */
 	if (bfpt_header->length == BFPT_DWORD_MAX_JESD216B)
-		return spi_nor_post_bfpt_fixups(nor, bfpt_header, &bfpt,
-						params);
+		return spi_nor_post_bfpt_fixups(nor, bfpt_header, &bfpt);
+
 	/* 8D-8D-8D command extension. */
 	switch (bfpt.dwords[BFPT_DWORD(18)] & BFPT_DWORD18_CMD_EXT_MASK) {
 	case BFPT_DWORD18_CMD_EXT_REP:
@@ -635,7 +632,7 @@  static int spi_nor_parse_bfpt(struct spi_nor *nor,
 		return -EOPNOTSUPP;
 	}
 
-	return spi_nor_post_bfpt_fixups(nor, bfpt_header, &bfpt, params);
+	return spi_nor_post_bfpt_fixups(nor, bfpt_header, &bfpt);
 }
 
 /**
@@ -800,18 +797,14 @@  spi_nor_region_check_overlay(struct spi_nor_erase_region *region,
 /**
  * spi_nor_init_non_uniform_erase_map() - initialize the non-uniform erase map
  * @nor:	pointer to a 'struct spi_nor'
- * @params:     pointer to a duplicate 'struct spi_nor_flash_parameter' that is
- *              used for storing SFDP parsed data
  * @smpt:	pointer to the sector map parameter table
  *
  * Return: 0 on success, -errno otherwise.
  */
-static int
-spi_nor_init_non_uniform_erase_map(struct spi_nor *nor,
-				   struct spi_nor_flash_parameter *params,
-				   const u32 *smpt)
+static int spi_nor_init_non_uniform_erase_map(struct spi_nor *nor,
+					      const u32 *smpt)
 {
-	struct spi_nor_erase_map *map = &params->erase_map;
+	struct spi_nor_erase_map *map = &nor->params->erase_map;
 	struct spi_nor_erase_type *erase = map->erase_type;
 	struct spi_nor_erase_region *region;
 	u64 offset;
@@ -890,8 +883,6 @@  spi_nor_init_non_uniform_erase_map(struct spi_nor *nor,
  * spi_nor_parse_smpt() - parse Sector Map Parameter Table
  * @nor:		pointer to a 'struct spi_nor'
  * @smpt_header:	sector map parameter table header
- * @params:		pointer to a duplicate 'struct spi_nor_flash_parameter'
- *                      that is used for storing SFDP parsed data
  *
  * This table is optional, but when available, we parse it to identify the
  * location and size of sectors within the main data array of the flash memory
@@ -900,8 +891,7 @@  spi_nor_init_non_uniform_erase_map(struct spi_nor *nor,
  * Return: 0 on success, -errno otherwise.
  */
 static int spi_nor_parse_smpt(struct spi_nor *nor,
-			      const struct sfdp_parameter_header *smpt_header,
-			      struct spi_nor_flash_parameter *params)
+			      const struct sfdp_parameter_header *smpt_header)
 {
 	const u32 *sector_map;
 	u32 *smpt;
@@ -929,11 +919,11 @@  static int spi_nor_parse_smpt(struct spi_nor *nor,
 		goto out;
 	}
 
-	ret = spi_nor_init_non_uniform_erase_map(nor, params, sector_map);
+	ret = spi_nor_init_non_uniform_erase_map(nor, sector_map);
 	if (ret)
 		goto out;
 
-	spi_nor_regions_sort_erase_types(&params->erase_map);
+	spi_nor_regions_sort_erase_types(&nor->params->erase_map);
 	/* fall through */
 out:
 	kfree(smpt);
@@ -945,13 +935,11 @@  static int spi_nor_parse_smpt(struct spi_nor *nor,
  * @nor:		pointer to a 'struct spi_nor'.
  * @param_header:	pointer to the 'struct sfdp_parameter_header' describing
  *			the 4-Byte Address Instruction Table length and version.
- * @params:		pointer to the 'struct spi_nor_flash_parameter' to be.
  *
  * Return: 0 on success, -errno otherwise.
  */
 static int spi_nor_parse_4bait(struct spi_nor *nor,
-			       const struct sfdp_parameter_header *param_header,
-			       struct spi_nor_flash_parameter *params)
+			       const struct sfdp_parameter_header *param_header)
 {
 	static const struct sfdp_4bait reads[] = {
 		{ SNOR_HWCAPS_READ,		BIT(0) },
@@ -975,8 +963,8 @@  static int spi_nor_parse_4bait(struct spi_nor *nor,
 		{ 0u /* not used */,		BIT(11) },
 		{ 0u /* not used */,		BIT(12) },
 	};
-	struct spi_nor_pp_command *params_pp = params->page_programs;
-	struct spi_nor_erase_map *map = &params->erase_map;
+	struct spi_nor_pp_command *params_pp = nor->params->page_programs;
+	struct spi_nor_erase_map *map = &nor->params->erase_map;
 	struct spi_nor_erase_type *erase_type = map->erase_type;
 	u32 *dwords;
 	size_t len;
@@ -1013,7 +1001,7 @@  static int spi_nor_parse_4bait(struct spi_nor *nor,
 		const struct sfdp_4bait *read = &reads[i];
 
 		discard_hwcaps |= read->hwcaps;
-		if ((params->hwcaps.mask & read->hwcaps) &&
+		if ((nor->params->hwcaps.mask & read->hwcaps) &&
 		    (dwords[0] & read->supported_bit))
 			read_hwcaps |= read->hwcaps;
 	}
@@ -1029,8 +1017,8 @@  static int spi_nor_parse_4bait(struct spi_nor *nor,
 		/*
 		 * The 4 Byte Address Instruction (Optional) Table is the only
 		 * SFDP table that indicates support for Page Program Commands.
-		 * Bypass the params->hwcaps.mask and consider 4BAIT the biggest
-		 * authority for specifying Page Program support.
+		 * Bypass the nor->params->hwcaps.mask and consider 4BAIT the
+		 * biggest authority for specifying Page Program support.
 		 */
 		discard_hwcaps |= program->hwcaps;
 		if (dwords[0] & program->supported_bit)
@@ -1064,12 +1052,12 @@  static int spi_nor_parse_4bait(struct spi_nor *nor,
 	 * Discard all operations from the 4-byte instruction set which are
 	 * not supported by this memory.
 	 */
-	params->hwcaps.mask &= ~discard_hwcaps;
-	params->hwcaps.mask |= (read_hwcaps | pp_hwcaps);
+	nor->params->hwcaps.mask &= ~discard_hwcaps;
+	nor->params->hwcaps.mask |= (read_hwcaps | pp_hwcaps);
 
 	/* Use the 4-byte address instruction set. */
 	for (i = 0; i < SNOR_CMD_READ_MAX; i++) {
-		struct spi_nor_read_command *read_cmd = &params->reads[i];
+		struct spi_nor_read_command *read_cmd = &nor->params->reads[i];
 
 		read_cmd->opcode = spi_nor_convert_3to4_read(read_cmd->opcode);
 	}
@@ -1131,13 +1119,11 @@  static int spi_nor_parse_4bait(struct spi_nor *nor,
  * @nor:		pointer to a 'struct spi_nor'
  * @profile1_header:	pointer to the 'struct sfdp_parameter_header' describing
  *			the Profile 1.0 Table length and version.
- * @params:		pointer to the 'struct spi_nor_flash_parameter' to be.
  *
  * Return: 0 on success, -errno otherwise.
  */
 static int spi_nor_parse_profile1(struct spi_nor *nor,
-				  const struct sfdp_parameter_header *profile1_header,
-				  struct spi_nor_flash_parameter *params)
+				  const struct sfdp_parameter_header *profile1_header)
 {
 	u32 *dwords, addr;
 	size_t len;
@@ -1161,14 +1147,14 @@  static int spi_nor_parse_profile1(struct spi_nor *nor,
 
 	 /* Set the Read Status Register dummy cycles and dummy address bytes. */
 	if (dwords[0] & PROFILE1_DWORD1_RDSR_DUMMY)
-		params->rdsr_dummy = 8;
+		nor->params->rdsr_dummy = 8;
 	else
-		params->rdsr_dummy = 4;
+		nor->params->rdsr_dummy = 4;
 
 	if (dwords[0] & PROFILE1_DWORD1_RDSR_ADDR_BYTES)
-		params->rdsr_addr_nbytes = 4;
+		nor->params->rdsr_addr_nbytes = 4;
 	else
-		params->rdsr_addr_nbytes = 0;
+		nor->params->rdsr_addr_nbytes = 0;
 
 	/*
 	 * We don't know what speed the controller is running at. Find the
@@ -1194,7 +1180,7 @@  static int spi_nor_parse_profile1(struct spi_nor *nor,
 	dummy = round_up(dummy, 2);
 
 	/* Update the fast read settings. */
-	spi_nor_set_read_settings(&params->reads[SNOR_CMD_READ_8_8_8_DTR],
+	spi_nor_set_read_settings(&nor->params->reads[SNOR_CMD_READ_8_8_8_DTR],
 				  0, dummy, opcode,
 				  SNOR_PROTO_8_8_8_DTR);
 
@@ -1211,13 +1197,11 @@  static int spi_nor_parse_profile1(struct spi_nor *nor,
  * @nor:		pointer to a 'struct spi_nor'
  * @sccr_header:	pointer to the 'struct sfdp_parameter_header' describing
  *			the SCCR Map table length and version.
- * @params:		pointer to the 'struct spi_nor_flash_parameter' to be.
  *
  * Return: 0 on success, -errno otherwise.
  */
 static int spi_nor_parse_sccr(struct spi_nor *nor,
-			      const struct sfdp_parameter_header *sccr_header,
-			      struct spi_nor_flash_parameter *params)
+			      const struct sfdp_parameter_header *sccr_header)
 {
 	u32 *dwords, addr;
 	size_t len;
@@ -1246,8 +1230,6 @@  static int spi_nor_parse_sccr(struct spi_nor *nor,
 /**
  * spi_nor_parse_sfdp() - parse the Serial Flash Discoverable Parameters.
  * @nor:		pointer to a 'struct spi_nor'
- * @params:		pointer to the 'struct spi_nor_flash_parameter' to be
- *			filled
  *
  * The Serial Flash Discoverable Parameters are described by the JEDEC JESD216
  * specification. This is a standard which tends to supported by almost all
@@ -1257,8 +1239,7 @@  static int spi_nor_parse_sccr(struct spi_nor *nor,
  *
  * Return: 0 on success, -errno otherwise.
  */
-int spi_nor_parse_sfdp(struct spi_nor *nor,
-		       struct spi_nor_flash_parameter *params)
+int spi_nor_parse_sfdp(struct spi_nor *nor)
 {
 	const struct sfdp_parameter_header *param_header, *bfpt_header;
 	struct sfdp_parameter_header *param_headers = NULL;
@@ -1327,7 +1308,7 @@  int spi_nor_parse_sfdp(struct spi_nor *nor,
 			bfpt_header = param_header;
 	}
 
-	err = spi_nor_parse_bfpt(nor, bfpt_header, params);
+	err = spi_nor_parse_bfpt(nor, bfpt_header);
 	if (err)
 		goto exit;
 
@@ -1337,19 +1318,19 @@  int spi_nor_parse_sfdp(struct spi_nor *nor,
 
 		switch (SFDP_PARAM_HEADER_ID(param_header)) {
 		case SFDP_SECTOR_MAP_ID:
-			err = spi_nor_parse_smpt(nor, param_header, params);
+			err = spi_nor_parse_smpt(nor, param_header);
 			break;
 
 		case SFDP_4BAIT_ID:
-			err = spi_nor_parse_4bait(nor, param_header, params);
+			err = spi_nor_parse_4bait(nor, param_header);
 			break;
 
 		case SFDP_PROFILE1_ID:
-			err = spi_nor_parse_profile1(nor, param_header, params);
+			err = spi_nor_parse_profile1(nor, param_header);
 			break;
 
 		case SFDP_SCCR_MAP_ID:
-			err = spi_nor_parse_sccr(nor, param_header, params);
+			err = spi_nor_parse_sccr(nor, param_header);
 			break;
 
 		default:
diff --git a/drivers/mtd/spi-nor/sfdp.h b/drivers/mtd/spi-nor/sfdp.h
index 89152ae1cf3e..bbf80d2990ab 100644
--- a/drivers/mtd/spi-nor/sfdp.h
+++ b/drivers/mtd/spi-nor/sfdp.h
@@ -107,7 +107,6 @@  struct sfdp_parameter_header {
 	u8		id_msb;
 };
 
-int spi_nor_parse_sfdp(struct spi_nor *nor,
-		       struct spi_nor_flash_parameter *params);
+int spi_nor_parse_sfdp(struct spi_nor *nor);
 
 #endif /* __LINUX_MTD_SFDP_H */
diff --git a/drivers/mtd/spi-nor/spansion.c b/drivers/mtd/spi-nor/spansion.c
index b0c5521c1e27..ee82dcd75310 100644
--- a/drivers/mtd/spi-nor/spansion.c
+++ b/drivers/mtd/spi-nor/spansion.c
@@ -142,8 +142,7 @@  static void s28hs512t_post_sfdp_fixup(struct spi_nor *nor)
 
 static int s28hs512t_post_bfpt_fixup(struct spi_nor *nor,
 				     const struct sfdp_parameter_header *bfpt_header,
-				     const struct sfdp_bfpt *bfpt,
-				     struct spi_nor_flash_parameter *params)
+				     const struct sfdp_bfpt *bfpt)
 {
 	/*
 	 * The BFPT table advertises a 512B page size but the page size is
@@ -162,9 +161,9 @@  static int s28hs512t_post_bfpt_fixup(struct spi_nor *nor,
 		return ret;
 
 	if (nor->bouncebuf[0] & SPINOR_REG_CYPRESS_CFR3V_PGSZ)
-		params->page_size = 512;
+		nor->params->page_size = 512;
 	else
-		params->page_size = 256;
+		nor->params->page_size = 256;
 
 	return 0;
 }
@@ -178,8 +177,7 @@  static struct spi_nor_fixups s28hs512t_fixups = {
 static int
 s25fs_s_post_bfpt_fixups(struct spi_nor *nor,
 			 const struct sfdp_parameter_header *bfpt_header,
-			 const struct sfdp_bfpt *bfpt,
-			 struct spi_nor_flash_parameter *params)
+			 const struct sfdp_bfpt *bfpt)
 {
 	/*
 	 * The S25FS-S chip family reports 512-byte pages in BFPT but
@@ -187,7 +185,7 @@  s25fs_s_post_bfpt_fixups(struct spi_nor *nor,
 	 * of 256 bytes.  Overwrite the page size advertised by BFPT
 	 * to get the writes working.
 	 */
-	params->page_size = 256;
+	nor->params->page_size = 256;
 
 	return 0;
 }
diff --git a/drivers/mtd/spi-nor/winbond.c b/drivers/mtd/spi-nor/winbond.c
index e5dfa786f190..5d5240fb9a32 100644
--- a/drivers/mtd/spi-nor/winbond.c
+++ b/drivers/mtd/spi-nor/winbond.c
@@ -11,8 +11,7 @@ 
 static int
 w25q256_post_bfpt_fixups(struct spi_nor *nor,
 			 const struct sfdp_parameter_header *bfpt_header,
-			 const struct sfdp_bfpt *bfpt,
-			 struct spi_nor_flash_parameter *params)
+			 const struct sfdp_bfpt *bfpt)
 {
 	/*
 	 * W25Q256JV supports 4B opcodes but W25Q256FV does not.