linux-kernel - [PATCH v3 1/2] nvmem: core: add root_only member to nvmem device struct

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Date:   Wed, 25 Mar 2020 12:21:15 +0000
From:   Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
To:     gregkh@...uxfoundation.org
Cc:     linux-kernel@...r.kernel.org,
        nicholas.johnson-opensource@...look.com.au,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Subject: [PATCH v3 1/2] nvmem: core: add root_only member to nvmem device struct

As we are planning to move to use sysfs is_bin_visible callback,
having root_only as part of nvmem_device will help decide correct
permissions.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
---
 drivers/nvmem/core.c  | 1 +
 drivers/nvmem/nvmem.h | 1 +
 2 files changed, 2 insertions(+)

diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c
index e8f7bea93abf..7d28e1cca4e0 100644
--- a/drivers/nvmem/core.c
+++ b/drivers/nvmem/core.c
@@ -377,6 +377,7 @@ struct nvmem_device *nvmem_register(const struct nvmem_config *config)
 	nvmem->dev.type = &nvmem_provider_type;
 	nvmem->dev.bus = &nvmem_bus_type;
 	nvmem->dev.parent = config->dev;
+	nvmem->root_only = config->root_only;
 	nvmem->priv = config->priv;
 	nvmem->type = config->type;
 	nvmem->reg_read = config->reg_read;
diff --git a/drivers/nvmem/nvmem.h b/drivers/nvmem/nvmem.h
index be0d66d75c8a..16c0d3ad6679 100644
--- a/drivers/nvmem/nvmem.h
+++ b/drivers/nvmem/nvmem.h
@@ -20,6 +20,7 @@ struct nvmem_device {
 	struct kref		refcnt;
 	size_t			size;
 	bool			read_only;
+	bool			root_only;
 	int			flags;
 	enum nvmem_type		type;
 	struct bin_attribute	eeprom;
-- 
2.21.0