[PATCH linux dev-5.15 03/26] mtd: spi-nor: core: Use container_of to get the pointer to struct spi_nor

[Potin Lai]

From: Tudor Ambarus <tudor.ambarus at microchip.com>

"struct mtd_info mtd" is member of "struct spi_nor", there's no need
to use "mtd->priv". Get the pointer to the containing struct spi_nor
by using container_of. While here, make the function inline and
get rid of the __maybe_unused.

Signed-off-by: Tudor Ambarus <tudor.ambarus at microchip.com>
Reviewed-by: Michael Walle <michael at walle.cc>
Reviewed-by: Pratyush Yadav <p.yadav at ti.com>
Link: https://lore.kernel.org/r/20211029172633.886453-3-tudor.ambarus@microchip.com
---
 drivers/mtd/spi-nor/core.c | 1 -
 drivers/mtd/spi-nor/core.h | 4 ++--
 2 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/mtd/spi-nor/core.c b/drivers/mtd/spi-nor/core.c
index cc08bd707378..277d1fde84c8 100644
--- a/drivers/mtd/spi-nor/core.c
+++ b/drivers/mtd/spi-nor/core.c
@@ -3134,7 +3134,6 @@ int spi_nor_scan(struct spi_nor *nor, const char *name,
 
 	if (!mtd->name)
 		mtd->name = dev_name(dev);
-	mtd->priv = nor;
 	mtd->type = MTD_NORFLASH;
 	mtd->writesize = nor->params->writesize;
 	mtd->flags = MTD_CAP_NORFLASH;
diff --git a/drivers/mtd/spi-nor/core.h b/drivers/mtd/spi-nor/core.h
index da3fd3636d3c..223a03769950 100644
--- a/drivers/mtd/spi-nor/core.h
+++ b/drivers/mtd/spi-nor/core.h
@@ -551,9 +551,9 @@ void spi_nor_try_unlock_all(struct spi_nor *nor);
 void spi_nor_register_locking_ops(struct spi_nor *nor);
 void spi_nor_otp_init(struct spi_nor *nor);
 
-static struct spi_nor __maybe_unused *mtd_to_spi_nor(struct mtd_info *mtd)
+static inline struct spi_nor *mtd_to_spi_nor(struct mtd_info *mtd)
 {
-	return mtd->priv;
+	return container_of(mtd, struct spi_nor, mtd);
 }
 
 #endif /* __LINUX_MTD_SPI_NOR_INTERNAL_H */
-- 
2.17.1