From a0bb6c91fee399fd2008bff571ec77fd57742f27 Mon Sep 17 00:00:00 2001 From: Jonas Gorski Date: Wed, 5 Jul 2017 10:53:00 +0200 Subject: [PATCH] brcm63xx: remove misleading warning about partial SPI NOR writes The warning will be triggered by jffs2 or UBI, and partial writes are no issue for most flash chips. Fixes: 2a2b16210bbc ("brcm63xx: backport upstream solution for SPI message size limits") Signed-off-by: Jonas Gorski --- ...ve-WARN_ONCE-message-in-spi_nor_writ.patch | 33 +++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 target/linux/brcm63xx/patches-4.4/001-4.11-02-mtd-spi-nor-remove-WARN_ONCE-message-in-spi_nor_writ.patch diff --git a/target/linux/brcm63xx/patches-4.4/001-4.11-02-mtd-spi-nor-remove-WARN_ONCE-message-in-spi_nor_writ.patch b/target/linux/brcm63xx/patches-4.4/001-4.11-02-mtd-spi-nor-remove-WARN_ONCE-message-in-spi_nor_writ.patch new file mode 100644 index 0000000000..7c70d20a43 --- /dev/null +++ b/target/linux/brcm63xx/patches-4.4/001-4.11-02-mtd-spi-nor-remove-WARN_ONCE-message-in-spi_nor_writ.patch @@ -0,0 +1,33 @@ +From bc0e151514d09cadb56e473a10c783e64e48ce0b Mon Sep 17 00:00:00 2001 +From: Cyrille Pitchen +Date: Tue, 6 Dec 2016 18:14:24 +0100 +Subject: [PATCH] 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 +Suggested-by: Richard Weinberger +Suggested-by: Andras Szemzo +Acked-by: Boris Brezillon +--- + drivers/mtd/spi-nor/spi-nor.c | 3 --- + 1 file changed, 3 deletions(-) + +--- a/drivers/mtd/spi-nor/spi-nor.c ++++ b/drivers/mtd/spi-nor/spi-nor.c +@@ -1014,9 +1014,6 @@ static int spi_nor_write(struct mtd_info + ssize_t written; + + page_offset = (to + i) & (nor->page_size - 1); +- 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);