diff options
Diffstat (limited to 'target/linux/generic/backport-5.15/828-v6.4-0004-of-Move-of_modalias-to-module.c.patch')
| -rw-r--r-- | target/linux/generic/backport-5.15/828-v6.4-0004-of-Move-of_modalias-to-module.c.patch | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/target/linux/generic/backport-5.15/828-v6.4-0004-of-Move-of_modalias-to-module.c.patch b/target/linux/generic/backport-5.15/828-v6.4-0004-of-Move-of_modalias-to-module.c.patch new file mode 100644 index 0000000000..a70c6f2eec --- /dev/null +++ b/target/linux/generic/backport-5.15/828-v6.4-0004-of-Move-of_modalias-to-module.c.patch @@ -0,0 +1,160 @@ +From bd7a7ed774afd1a4174df34227626c95573be517 Mon Sep 17 00:00:00 2001 +From: Miquel Raynal <miquel.raynal@bootlin.com> +Date: Tue, 4 Apr 2023 18:21:17 +0100 +Subject: [PATCH] of: Move of_modalias() to module.c + +Create a specific .c file for OF related module handling. +Move of_modalias() inside as a first step. + +The helper is exposed through of.h even though it is only used by core +files because the users from device.c will soon be split into an OF-only +helper in module.c as well as a device-oriented inline helper in +of_device.h. Putting this helper in of_private.h would require to +include of_private.h from of_device.h, which is not acceptable. + +Suggested-by: Rob Herring <robh+dt@kernel.org> +Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> +Reviewed-by: Rob Herring <robh@kernel.org> +Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> +Link: https://lore.kernel.org/r/20230404172148.82422-10-srinivas.kandagatla@linaro.org +Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> +--- + drivers/of/Makefile | 2 +- + drivers/of/device.c | 37 ------------------------------------- + drivers/of/module.c | 44 ++++++++++++++++++++++++++++++++++++++++++++ + include/linux/of.h | 9 +++++++++ + 4 files changed, 54 insertions(+), 38 deletions(-) + create mode 100644 drivers/of/module.c + +--- a/drivers/of/Makefile ++++ b/drivers/of/Makefile +@@ -1,5 +1,5 @@ + # SPDX-License-Identifier: GPL-2.0 +-obj-y = base.o device.o platform.o property.o ++obj-y = base.o device.o module.o platform.o property.o + obj-$(CONFIG_OF_KOBJ) += kobj.o + obj-$(CONFIG_OF_DYNAMIC) += dynamic.o + obj-$(CONFIG_OF_FLATTREE) += fdt.o +--- a/drivers/of/device.c ++++ b/drivers/of/device.c +@@ -1,5 +1,4 @@ + // SPDX-License-Identifier: GPL-2.0 +-#include <linux/string.h> + #include <linux/kernel.h> + #include <linux/of.h> + #include <linux/of_device.h> +@@ -241,42 +240,6 @@ const void *of_device_get_match_data(con + } + EXPORT_SYMBOL(of_device_get_match_data); + +-static ssize_t of_modalias(const struct device_node *np, char *str, ssize_t len) +-{ +- const char *compat; +- char *c; +- struct property *p; +- ssize_t csize; +- ssize_t tsize; +- +- /* Name & Type */ +- /* %p eats all alphanum characters, so %c must be used here */ +- csize = snprintf(str, len, "of:N%pOFn%c%s", np, 'T', +- of_node_get_device_type(np)); +- tsize = csize; +- len -= csize; +- if (str) +- str += csize; +- +- of_property_for_each_string(np, "compatible", p, compat) { +- csize = strlen(compat) + 1; +- tsize += csize; +- if (csize > len) +- continue; +- +- csize = snprintf(str, len, "C%s", compat); +- for (c = str; c; ) { +- c = strchr(c, ' '); +- if (c) +- *c++ = '_'; +- } +- len -= csize; +- str += csize; +- } +- +- return tsize; +-} +- + int of_device_request_module(struct device *dev) + { + char *str; +--- /dev/null ++++ b/drivers/of/module.c +@@ -0,0 +1,44 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * Linux kernel module helpers. ++ */ ++ ++#include <linux/of.h> ++#include <linux/slab.h> ++#include <linux/string.h> ++ ++ssize_t of_modalias(const struct device_node *np, char *str, ssize_t len) ++{ ++ const char *compat; ++ char *c; ++ struct property *p; ++ ssize_t csize; ++ ssize_t tsize; ++ ++ /* Name & Type */ ++ /* %p eats all alphanum characters, so %c must be used here */ ++ csize = snprintf(str, len, "of:N%pOFn%c%s", np, 'T', ++ of_node_get_device_type(np)); ++ tsize = csize; ++ len -= csize; ++ if (str) ++ str += csize; ++ ++ of_property_for_each_string(np, "compatible", p, compat) { ++ csize = strlen(compat) + 1; ++ tsize += csize; ++ if (csize > len) ++ continue; ++ ++ csize = snprintf(str, len, "C%s", compat); ++ for (c = str; c; ) { ++ c = strchr(c, ' '); ++ if (c) ++ *c++ = '_'; ++ } ++ len -= csize; ++ str += csize; ++ } ++ ++ return tsize; ++} +--- a/include/linux/of.h ++++ b/include/linux/of.h +@@ -373,6 +373,9 @@ extern int of_parse_phandle_with_args_ma + extern int of_count_phandle_with_args(const struct device_node *np, + const char *list_name, const char *cells_name); + ++/* module functions */ ++extern ssize_t of_modalias(const struct device_node *np, char *str, ssize_t len); ++ + /* phandle iterator functions */ + extern int of_phandle_iterator_init(struct of_phandle_iterator *it, + const struct device_node *np, +@@ -885,6 +888,12 @@ static inline int of_count_phandle_with_ + return -ENOSYS; + } + ++static inline ssize_t of_modalias(const struct device_node *np, char *str, ++ ssize_t len) ++{ ++ return -ENODEV; ++} ++ + static inline int of_phandle_iterator_init(struct of_phandle_iterator *it, + const struct device_node *np, + const char *list_name, |