mtd: spi-nor: remove WARN_ONCE() message in spi_nor_write()

This patch removes the WARN_ONCE() test in spi_nor_write().
This macro triggers the display of a warning message almost every time we
use a UBI file-system because a write operation is performed at offset 64,
which is in the middle of the SPI NOR memory page. This is a valid
operation for ubifs.

Hence this warning is pretty annoying and useless so we just remove it.

Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
Suggested-by: Richard Weinberger <richard@nod.at>
Suggested-by: Andras Szemzo <szemzo.andras@gmail.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>

diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c
index 4e35917..8610765 100644 (file)
--- a/drivers/mtd/spi-nor/spi-nor.c
+++ b/drivers/mtd/spi-nor/spi-nor.c
@@ -1263,9 +1263,6 @@ static int spi_nor_write(struct mtd_info *mtd, loff_t to, size_t len,
 
                        page_offset = do_div(aux, nor->page_size);
                }
-               WARN_ONCE(page_offset,
-                         "Writing at offset %zu into a NOR page. Writing partial pages may decrease reliability and increase wear of NOR flash.",
-                         page_offset);
                /* the size of data remaining on the first page */
                page_remain = min_t(size_t,
                                    nor->page_size - page_offset, len - i);