ipq806x: remove v4.4 support

[openwrt/openwrt.git] / target / linux / ipq806x / patches-4.4 / 019-3-nvmem-Add-flag-to-export-NVMEM-to-root-only.patch

diff --git a/target/linux/ipq806x/patches-4.4/019-3-nvmem-Add-flag-to-export-NVMEM-to-root-only.patch b/target/linux/ipq806x/patches-4.4/019-3-nvmem-Add-flag-to-export-NVMEM-to-root-only.patch
deleted file mode 100644 (file)
index 77136ea..0000000
--- a/target/linux/ipq806x/patches-4.4/019-3-nvmem-Add-flag-to-export-NVMEM-to-root-only.patch
+++ /dev/null
@@ -1,101 +0,0 @@
-From 811b0d6538b9f26f3eb0f90fe4e6118f2480ec6f Mon Sep 17 00:00:00 2001
-From: Andrew Lunn <andrew@lunn.ch>
-Date: Fri, 26 Feb 2016 20:59:18 +0100
-Subject: nvmem: Add flag to export NVMEM to root only
-
-Legacy AT24, AT25 EEPROMs are exported in sys so that only root can
-read the contents. The EEPROMs may contain sensitive information. Add
-a flag so the provide can indicate that NVMEM should also restrict
-access to root only.
-
-Signed-off-by: Andrew Lunn <andrew@lunn.ch>
-Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
----
- drivers/nvmem/core.c           | 57 ++++++++++++++++++++++++++++++++++++++++--
- include/linux/nvmem-provider.h |  1 +
- 2 files changed, 56 insertions(+), 2 deletions(-)
-
---- a/drivers/nvmem/core.c
-+++ b/drivers/nvmem/core.c
-@@ -161,6 +161,53 @@ static const struct attribute_group *nvm
-       NULL,
- };
- 
-+/* default read/write permissions, root only */
-+static struct bin_attribute bin_attr_rw_root_nvmem = {
-+      .attr   = {
-+              .name   = "nvmem",
-+              .mode   = S_IWUSR | S_IRUSR,
-+      },
-+      .read   = bin_attr_nvmem_read,
-+      .write  = bin_attr_nvmem_write,
-+};
-+
-+static struct bin_attribute *nvmem_bin_rw_root_attributes[] = {
-+      &bin_attr_rw_root_nvmem,
-+      NULL,
-+};
-+
-+static const struct attribute_group nvmem_bin_rw_root_group = {
-+      .bin_attrs      = nvmem_bin_rw_root_attributes,
-+};
-+
-+static const struct attribute_group *nvmem_rw_root_dev_groups[] = {
-+      &nvmem_bin_rw_root_group,
-+      NULL,
-+};
-+
-+/* read only permission, root only */
-+static struct bin_attribute bin_attr_ro_root_nvmem = {
-+      .attr   = {
-+              .name   = "nvmem",
-+              .mode   = S_IRUSR,
-+      },
-+      .read   = bin_attr_nvmem_read,
-+};
-+
-+static struct bin_attribute *nvmem_bin_ro_root_attributes[] = {
-+      &bin_attr_ro_root_nvmem,
-+      NULL,
-+};
-+
-+static const struct attribute_group nvmem_bin_ro_root_group = {
-+      .bin_attrs      = nvmem_bin_ro_root_attributes,
-+};
-+
-+static const struct attribute_group *nvmem_ro_root_dev_groups[] = {
-+      &nvmem_bin_ro_root_group,
-+      NULL,
-+};
-+
- static void nvmem_release(struct device *dev)
- {
-       struct nvmem_device *nvmem = to_nvmem_device(dev);
-@@ -355,8 +402,14 @@ struct nvmem_device *nvmem_register(cons
-       nvmem->read_only = of_property_read_bool(np, "read-only") |
-                          config->read_only;
- 
--      nvmem->dev.groups = nvmem->read_only ? nvmem_ro_dev_groups :
--                                             nvmem_rw_dev_groups;
-+      if (config->root_only)
-+              nvmem->dev.groups = nvmem->read_only ?
-+                      nvmem_ro_root_dev_groups :
-+                      nvmem_rw_root_dev_groups;
-+      else
-+              nvmem->dev.groups = nvmem->read_only ?
-+                      nvmem_ro_dev_groups :
-+                      nvmem_rw_dev_groups;
- 
-       device_initialize(&nvmem->dev);
- 
---- a/include/linux/nvmem-provider.h
-+++ b/include/linux/nvmem-provider.h
-@@ -23,6 +23,7 @@ struct nvmem_config {
-       const struct nvmem_cell_info    *cells;
-       int                     ncells;
-       bool                    read_only;
-+      bool                    root_only;
- };
- 
- #if IS_ENABLED(CONFIG_NVMEM)