From: Naga Sureshkumar Relli commit 46109648052fe778c75f199d72255c899578d6f7 upstream. Export spi_mem_default_supports_op(), so that controller drivers can use this. spi-mem driver already exports this using EXPORT_SYMBOL, but not declared it in spi-mem.h. This patch declares spi_mem_default_supports_op() in spi-mem.h and also removes the static from the function prototype. This patch also squashes upstream commit 72e6841608b9 ("spi: spi-mem: Fix build error without CONFIG_SPI_MEM")' in the current patch as commit 46109648052f ("spi: spi-mem: export spi_mem_default_supports_op()")' introduced below build error when built without CONFIG_SPI_MEM: drivers/spi/spi-zynq-qspi.o: In function `zynq_qspi_supports_op': spi-zynq-qspi.c:(.text+0x1da): undefined reference to `spi_mem_default_supports_op' Signed-off-by: Naga Sureshkumar Relli Signed-off-by: Mark Brown Signed-off-by: YueHaibing Signed-off-by: Mark Brown [PL: manually applied the changes, squashed commit 72e6841608b9 ("spi: spi-mem: Fix build error without CONFIG_SPI_MEM")' in current patch] Signed-off-by: Lad Prabhakar --- drivers/spi/spi-mem.c | 4 ++-- include/linux/spi/spi-mem.h | 11 +++++++++++ 2 files changed, 13 insertions(+), 2 deletions(-) diff --git a/drivers/spi/spi-mem.c b/drivers/spi/spi-mem.c index 967f581bca4f..b319a9f0138c 100644 --- a/drivers/spi/spi-mem.c +++ b/drivers/spi/spi-mem.c @@ -128,8 +128,8 @@ static int spi_check_buswidth_req(struct spi_mem *mem, u8 buswidth, bool tx) return -ENOTSUPP; } -static bool spi_mem_default_supports_op(struct spi_mem *mem, - const struct spi_mem_op *op) +bool spi_mem_default_supports_op(struct spi_mem *mem, + const struct spi_mem_op *op) { if (spi_check_buswidth_req(mem, op->cmd.buswidth, true)) return false; diff --git a/include/linux/spi/spi-mem.h b/include/linux/spi/spi-mem.h index 80db2de83402..253a8d451d4c 100644 --- a/include/linux/spi/spi-mem.h +++ b/include/linux/spi/spi-mem.h @@ -224,6 +224,10 @@ int spi_controller_dma_map_mem_op_data(struct spi_controller *ctlr, void spi_controller_dma_unmap_mem_op_data(struct spi_controller *ctlr, const struct spi_mem_op *op, struct sg_table *sg); + +bool spi_mem_default_supports_op(struct spi_mem *mem, + const struct spi_mem_op *op); + #else static inline int spi_controller_dma_map_mem_op_data(struct spi_controller *ctlr, @@ -239,6 +243,13 @@ spi_controller_dma_unmap_mem_op_data(struct spi_controller *ctlr, struct sg_table *sg) { } + +bool spi_mem_default_supports_op(struct spi_mem *mem, + const struct spi_mem_op *op) +{ + return false; +} + #endif /* CONFIG_SPI_MEM */ int spi_mem_adjust_op_size(struct spi_mem *mem, struct spi_mem_op *op); -- 2.17.1