This is a note to let you know that I've just added the patch titled
mtd: spi-nor: Fix mtd size for s3an flashes
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
mtd-spi-nor-fix-mtd-size-for-s3an-flashes.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 46dec7cabf3efe3fb6946e4a3f681f8d7d8f67c9
Author: Tudor Ambarus <tudor.ambarus@xxxxxxxxxxxxx>
Date: Tue Dec 7 16:02:41 2021 +0200
mtd: spi-nor: Fix mtd size for s3an flashes
[ Upstream commit f656b419d41aabafb6b526abc3988dfbf2e5c1ba ]
As it was before the blamed commit, s3an_nor_scan() was called
after mtd size was set with params->size, and it overwrote the mtd
size value with '8 * nor->page_size * nor->info->n_sectors' when
XSR_PAGESIZE was set. With the introduction of
s3an_post_sfdp_fixups(), we missed to update the mtd size for the
s3an flashes. Fix the mtd size by updating both nor->params->size,
(which will update the mtd_info size later on) and nor->mtd.size
(which is used in spi_nor_set_addr_width()).
Fixes: 641edddb4f43 ("mtd: spi-nor: Add s3an_post_sfdp_fixups()")
Signed-off-by: Tudor Ambarus <tudor.ambarus@xxxxxxxxxxxxx>
Reviewed-by: Pratyush Yadav <p.yadav@xxxxxx>
Link: https://lore.kernel.org/r/20211207140254.87681-2-tudor.ambarus@xxxxxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/mtd/spi-nor/xilinx.c b/drivers/mtd/spi-nor/xilinx.c
index 1138bdbf41998..75dd13a390404 100644
--- a/drivers/mtd/spi-nor/xilinx.c
+++ b/drivers/mtd/spi-nor/xilinx.c
@@ -66,7 +66,8 @@ static int xilinx_nor_setup(struct spi_nor *nor,
/* Flash in Power of 2 mode */
nor->page_size = (nor->page_size == 264) ? 256 : 512;
nor->mtd.writebufsize = nor->page_size;
- nor->mtd.size = 8 * nor->page_size * nor->info->n_sectors;
+ nor->params->size = 8 * nor->page_size * nor->info->n_sectors;
+ nor->mtd.size = nor->params->size;
nor->mtd.erasesize = 8 * nor->page_size;
} else {
/* Flash in Default addressing mode */
