kernel: delete Linux 5.4 config and patches

As the upcoming release will be based on Linux 5.10 only, remove all
kernel configuration as well as patches for Linux 5.4.
There were no targets still actively using Linux 5.4.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
(cherry picked from commit 3a14580411adfb75f9a44eded9f41245b9e44606)

1 files changed, 0 insertions, 220 deletions

diff --git a/target/linux/generic/hack-5.4/204-module_strip.patch b/target/linux/generic/hack-5.4/204-module_strip.patch
deleted file mode 100644
index d6e25f319b..0000000000
--- a/target/linux/generic/hack-5.4/204-module_strip.patch
+++ /dev/null
@@ -1,220 +0,0 @@
-From a779a482fb9b9f8fcdf8b2519c789b4b9bb5dd05 Mon Sep 17 00:00:00 2001
-From: Felix Fietkau <nbd@nbd.name>
-Date: Fri, 7 Jul 2017 16:56:48 +0200
-Subject: build: add a hack for removing non-essential module info
-
-Signed-off-by: Felix Fietkau <nbd@nbd.name>
----
- include/linux/module.h      | 13 ++++++++-----
- include/linux/moduleparam.h | 15 ++++++++++++---
- init/Kconfig                |  7 +++++++
- kernel/module.c             |  5 ++++-
- scripts/mod/modpost.c       | 12 ++++++++++++
- 5 files changed, 43 insertions(+), 9 deletions(-)
-
---- a/include/linux/module.h
-+++ b/include/linux/module.h
-@@ -157,6 +157,7 @@ extern void cleanup_module(void);
- 
- /* Generic info of form tag = "info" */
- #define MODULE_INFO(tag, info) __MODULE_INFO(tag, tag, info)
-+#define MODULE_INFO_STRIP(tag, info) __MODULE_INFO_STRIP(tag, tag, info)
- 
- /* For userspace: you can also call me... */
- #define MODULE_ALIAS(_alias) MODULE_INFO(alias, _alias)
-@@ -216,12 +217,12 @@ extern void cleanup_module(void);
-  * Author(s), use "Name <email>" or just "Name", for multiple
-  * authors use multiple MODULE_AUTHOR() statements/lines.
-  */
--#define MODULE_AUTHOR(_author) MODULE_INFO(author, _author)
-+#define MODULE_AUTHOR(_author) MODULE_INFO_STRIP(author, _author)
- 
- /* What your module does. */
--#define MODULE_DESCRIPTION(_description) MODULE_INFO(description, _description)
-+#define MODULE_DESCRIPTION(_description) MODULE_INFO_STRIP(description, _description)
- 
--#ifdef MODULE
-+#if defined(MODULE) && !defined(CONFIG_MODULE_STRIPPED)
- /* Creates an alias so file2alias.c can find device table. */
- #define MODULE_DEVICE_TABLE(type, name)					\
- extern typeof(name) __mod_##type##__##name##_device_table		\
-@@ -248,7 +249,9 @@ extern typeof(name) __mod_##type##__##na
-  */
- 
- #if defined(MODULE) || !defined(CONFIG_SYSFS)
--#define MODULE_VERSION(_version) MODULE_INFO(version, _version)
-+#define MODULE_VERSION(_version) MODULE_INFO_STRIP(version, _version)
-+#elif defined(CONFIG_MODULE_STRIPPED)
-+#define MODULE_VERSION(_version) __MODULE_INFO_DISABLED(version)
- #else
- #define MODULE_VERSION(_version)					\
- 	MODULE_INFO(version, _version);					\
-@@ -271,7 +274,7 @@ extern typeof(name) __mod_##type##__##na
- /* Optional firmware file (or files) needed by the module
-  * format is simply firmware file name.  Multiple firmware
-  * files require multiple MODULE_FIRMWARE() specifiers */
--#define MODULE_FIRMWARE(_firmware) MODULE_INFO(firmware, _firmware)
-+#define MODULE_FIRMWARE(_firmware) MODULE_INFO_STRIP(firmware, _firmware)
- 
- #define MODULE_IMPORT_NS(ns) MODULE_INFO(import_ns, #ns)
- 
---- a/include/linux/moduleparam.h
-+++ b/include/linux/moduleparam.h
-@@ -20,10 +20,24 @@
- /* Chosen so that structs with an unsigned long line up. */
- #define MAX_PARAM_PREFIX_LEN (64 - sizeof(unsigned long))
- 
-+/* This struct is here for syntactic coherency, it is not used */
-+#define __MODULE_INFO_DISABLED(name)					  \
-+  struct __UNIQUE_ID(name) {}
-+
-+#ifdef CONFIG_MODULE_STRIPPED
-+#define __MODULE_INFO_STRIP(tag, name, info) __MODULE_INFO_DISABLED(name)
-+#else
-+#define __MODULE_INFO_STRIP(tag, name, info) __MODULE_INFO(tag, name, info)
-+#endif
-+
-+#ifdef MODULE
- #define __MODULE_INFO(tag, name, info)					  \
- static const char __UNIQUE_ID(name)[]					  \
-   __used __attribute__((section(".modinfo"), unused, aligned(1)))	  \
-   = __MODULE_INFO_PREFIX __stringify(tag) "=" info
-+#else
-+#define __MODULE_INFO(tag, name, info) __MODULE_INFO_DISABLED(name)
-+#endif
- 
- #define __MODULE_PARM_TYPE(name, _type)					  \
-   __MODULE_INFO(parmtype, name##type, #name ":" _type)
-@@ -31,7 +45,7 @@ static const char __UNIQUE_ID(name)[]
- /* One for each parameter, describing how to use it.  Some files do
-    multiple of these per line, so can't just use MODULE_INFO. */
- #define MODULE_PARM_DESC(_parm, desc) \
--	__MODULE_INFO(parm, _parm, #_parm ":" desc)
-+	__MODULE_INFO_STRIP(parm, _parm, #_parm ":" desc)
- 
- struct kernel_param;
- 
---- a/init/Kconfig
-+++ b/init/Kconfig
-@@ -2198,6 +2198,13 @@ config TRIM_UNUSED_KSYMS
- 
- 	  If unsure, or if you need to build out-of-tree modules, say N.
- 
-+config MODULE_STRIPPED
-+	bool "Reduce module size"
-+	depends on MODULES
-+	help
-+	  Remove module parameter descriptions, author info, version, aliases,
-+	  device tables, etc.
-+
- endif # MODULES
- 
- config MODULES_TREE_LOOKUP
---- a/kernel/module.c
-+++ b/kernel/module.c
-@@ -1281,6 +1281,7 @@ static struct module_attribute *modinfo_
- 
- static const char vermagic[] = VERMAGIC_STRING;
- 
-+#if defined(CONFIG_MODVERSIONS) || !defined(CONFIG_MODULE_STRIPPED)
- static int try_to_force_load(struct module *mod, const char *reason)
- {
- #ifdef CONFIG_MODULE_FORCE_LOAD
-@@ -1292,6 +1293,7 @@ static int try_to_force_load(struct modu
- 	return -ENOEXEC;
- #endif
- }
-+#endif
- 
- #ifdef CONFIG_MODVERSIONS
- 
-@@ -3256,9 +3258,11 @@ static int setup_load_info(struct load_i
- 
- static int check_modinfo(struct module *mod, struct load_info *info, int flags)
- {
--	const char *modmagic = get_modinfo(info, "vermagic");
- 	int err;
- 
-+#ifndef CONFIG_MODULE_STRIPPED
-+	const char *modmagic = get_modinfo(info, "vermagic");
-+
- 	if (flags & MODULE_INIT_IGNORE_VERMAGIC)
- 		modmagic = NULL;
- 
-@@ -3279,6 +3283,7 @@ static int check_modinfo(struct module *
- 				mod->name);
- 		add_taint_module(mod, TAINT_OOT_MODULE, LOCKDEP_STILL_OK);
- 	}
-+#endif
- 
- 	check_modinfo_retpoline(mod, info);
- 
---- a/scripts/mod/modpost.c
-+++ b/scripts/mod/modpost.c
-@@ -2056,7 +2056,9 @@ static void read_symbols(const char *mod
- 		symname = remove_dot(info.strtab + sym->st_name);
- 
- 		handle_modversions(mod, &info, sym, symname);
-+#ifndef CONFIG_MODULE_STRIPPED
- 		handle_moddevtable(mod, &info, sym, symname);
-+#endif
- 	}
- 
- 	/* Apply symbol namespaces from __kstrtabns_<symbol> entries. */
-@@ -2270,8 +2272,10 @@ static void add_header(struct buffer *b,
- 	buf_printf(b, "\n");
- 	buf_printf(b, "BUILD_SALT;\n");
- 	buf_printf(b, "\n");
-+#ifndef CONFIG_MODULE_STRIPPED
- 	buf_printf(b, "MODULE_INFO(vermagic, VERMAGIC_STRING);\n");
- 	buf_printf(b, "MODULE_INFO(name, KBUILD_MODNAME);\n");
-+#endif
- 	buf_printf(b, "\n");
- 	buf_printf(b, "__visible struct module __this_module\n");
- 	buf_printf(b, "__section(.gnu.linkonce.this_module) = {\n");
-@@ -2288,8 +2292,10 @@ static void add_header(struct buffer *b,
- 
- static void add_intree_flag(struct buffer *b, int is_intree)
- {
-+#ifndef CONFIG_MODULE_STRIPPED
- 	if (is_intree)
- 		buf_printf(b, "\nMODULE_INFO(intree, \"Y\");\n");
-+#endif
- }
- 
- /* Cannot check for assembler */
-@@ -2302,8 +2308,10 @@ static void add_retpoline(struct buffer
- 
- static void add_staging_flag(struct buffer *b, const char *name)
- {
-+#ifndef CONFIG_MODULE_STRIPPED
- 	if (strstarts(name, "drivers/staging"))
- 		buf_printf(b, "\nMODULE_INFO(staging, \"Y\");\n");
-+#endif
- }
- 
- /**
-@@ -2387,11 +2395,13 @@ static void add_depends(struct buffer *b
- 
- static void add_srcversion(struct buffer *b, struct module *mod)
- {
-+#ifndef CONFIG_MODULE_STRIPPED
- 	if (mod->srcversion[0]) {
- 		buf_printf(b, "\n");
- 		buf_printf(b, "MODULE_INFO(srcversion, \"%s\");\n",
- 			   mod->srcversion);
- 	}
-+#endif
- }
- 
- static void write_if_changed(struct buffer *b, const char *fname)
-@@ -2661,7 +2671,9 @@ int main(int argc, char **argv)
- 		add_staging_flag(&buf, mod->name);
- 		err |= add_versions(&buf, mod);
- 		add_depends(&buf, mod);
-+#ifndef CONFIG_MODULE_STRIPPED
- 		add_moddevtable(&buf, mod);
-+#endif
- 		add_srcversion(&buf, mod);
- 
- 		sprintf(fname, "%s.mod.c", mod->name);