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mtd: concat: use container_of_const() in CONCAT()

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CONCAT() currently recovers the enclosing struct mtd_concat by casting
its embedded struct mtd_info pointer. This assumes mtd remains the first
member of the structure.

Use container_of_const() with the named member to make the relationship
explicit and preserve any const qualifier.

Suggested-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
This commit is contained in:
Harshit Mogalapalli 2026-09-24 14:14:11 -07:00 committed by Miquel Raynal
parent c4f64a86a2
commit 2e566a6830
1 changed files with 1 additions and 1 deletions
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2
drivers/mtd/mtdconcat.c
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@ -31,7 +31,7 @@
* Given a pointer to the MTD object in the mtd_concat structure,
* we can retrieve the pointer to that structure with this macro.
*/
#define CONCAT(x) ((struct mtd_concat *)(x))
#define CONCAT(x) container_of_const(x, struct mtd_concat, mtd)
/*
* MTD methods which look up the relevant subdevice, translate the