Write support is optional with the CONFIG_MTD_WRITE option. Bail out early in the write functions to save some binary space. Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx> --- drivers/mtd/spi-nor/spi-nor.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c index 350b82a6be..bd748ff5b4 100644 --- a/drivers/mtd/spi-nor/spi-nor.c +++ b/drivers/mtd/spi-nor/spi-nor.c @@ -470,6 +470,9 @@ static int spi_nor_erase(struct mtd_info *mtd, struct erase_info *instr) uint32_t rem; int ret; + if (!IS_ENABLED(CONFIG_MTD_WRITE)) + return -ENOSYS; + dev_dbg(nor->dev, "at 0x%llx, len %lld\n", (long long)instr->addr, (long long)instr->len); @@ -928,6 +931,9 @@ static int sst_write(struct mtd_info *mtd, loff_t to, size_t len, size_t actual; int ret; + if (!IS_ENABLED(CONFIG_MTD_WRITE)) + return -ENOSYS; + dev_dbg(nor->dev, "to 0x%08x, len %zd\n", (u32)to, len); ret = spi_nor_lock_and_prep(nor, SPI_NOR_OPS_WRITE); @@ -1000,6 +1006,9 @@ static int spi_nor_write(struct mtd_info *mtd, loff_t to, size_t len, size_t retval; int ret; + if (!IS_ENABLED(CONFIG_MTD_WRITE)) + return -ENOSYS; + dev_dbg(nor->dev, "to 0x%08x, len %zd\n", (u32)to, len); ret = spi_nor_lock_and_prep(nor, SPI_NOR_OPS_WRITE); -- 2.20.1 _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
