6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Rafał Miłecki <rafal@xxxxxxxxxx> [ Upstream commit 33cf42e68efc8ff529a7eee08a4f0ba8c8d0a207 ] This is required by layouts that need to read whole NVMEM content. It's especially useful for NVMEM devices without hardcoded layout (like U-Boot environment data block). Signed-off-by: Rafał Miłecki <rafal@xxxxxxxxxx> Reviewed-by: Miquel Raynal <miquel.raynal@xxxxxxxxxxx> Link: https://lore.kernel.org/r/20231221173421.13737-2-zajec5@xxxxxxxxx Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> Stable-dep-of: 8679e8b4a1eb ("nvmem: u-boot-env: error if NVMEM device is too small") Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- drivers/nvmem/core.c | 13 +++++++++++++ include/linux/nvmem-consumer.h | 1 + 2 files changed, 14 insertions(+) diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c index e7fd1315d7ed..f28c005c2bb2 100644 --- a/drivers/nvmem/core.c +++ b/drivers/nvmem/core.c @@ -2131,6 +2131,19 @@ const char *nvmem_dev_name(struct nvmem_device *nvmem) } EXPORT_SYMBOL_GPL(nvmem_dev_name); +/** + * nvmem_dev_size() - Get the size of a given nvmem device. + * + * @nvmem: nvmem device. + * + * Return: size of the nvmem device. + */ +size_t nvmem_dev_size(struct nvmem_device *nvmem) +{ + return nvmem->size; +} +EXPORT_SYMBOL_GPL(nvmem_dev_size); + static int __init nvmem_init(void) { return bus_register(&nvmem_bus_type); diff --git a/include/linux/nvmem-consumer.h b/include/linux/nvmem-consumer.h index 4523e4e83319..526025561df1 100644 --- a/include/linux/nvmem-consumer.h +++ b/include/linux/nvmem-consumer.h @@ -81,6 +81,7 @@ int nvmem_device_cell_write(struct nvmem_device *nvmem, struct nvmem_cell_info *info, void *buf); const char *nvmem_dev_name(struct nvmem_device *nvmem); +size_t nvmem_dev_size(struct nvmem_device *nvmem); void nvmem_add_cell_lookups(struct nvmem_cell_lookup *entries, size_t nentries); -- 2.43.0
