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, 109 deletions

diff --git a/target/linux/generic/hack-5.4/221-module_exports.patch b/target/linux/generic/hack-5.4/221-module_exports.patch
deleted file mode 100644
index 47f40ac5e1..0000000000
--- a/target/linux/generic/hack-5.4/221-module_exports.patch
+++ /dev/null
@@ -1,109 +0,0 @@
-From b14784e7883390c20ed3ff904892255404a5914b Mon Sep 17 00:00:00 2001
-From: Felix Fietkau <nbd@nbd.name>
-Date: Fri, 7 Jul 2017 17:05:53 +0200
-Subject: add an optional config option for stripping all unnecessary symbol exports from the kernel image
-
-lede-commit: bb5a40c64b7c4f4848509fa0a6625055fc9e66cc
-Signed-off-by: Felix Fietkau <nbd@nbd.name>
----
- include/asm-generic/vmlinux.lds.h | 18 +++++++++++++++---
- include/linux/export.h            |  9 ++++++++-
- scripts/Makefile.build            |  2 +-
- 3 files changed, 24 insertions(+), 5 deletions(-)
-
---- a/include/asm-generic/vmlinux.lds.h
-+++ b/include/asm-generic/vmlinux.lds.h
-@@ -54,6 +54,16 @@
- #define LOAD_OFFSET 0
- #endif
- 
-+#ifndef SYMTAB_KEEP
-+#define SYMTAB_KEEP KEEP(*(SORT(___ksymtab+*)))
-+#define SYMTAB_KEEP_GPL KEEP(*(SORT(___ksymtab_gpl+*)))
-+#endif
-+
-+#ifndef SYMTAB_DISCARD
-+#define SYMTAB_DISCARD
-+#define SYMTAB_DISCARD_GPL
-+#endif
-+
- /* Align . to a 8 byte boundary equals to maximum function alignment. */
- #define ALIGN_FUNCTION()  . = ALIGN(8)
- 
-@@ -407,14 +417,14 @@
- 	/* Kernel symbol table: Normal symbols */			\
- 	__ksymtab         : AT(ADDR(__ksymtab) - LOAD_OFFSET) {		\
- 		__start___ksymtab = .;					\
--		KEEP(*(SORT(___ksymtab+*)))				\
-+		SYMTAB_KEEP						\
- 		__stop___ksymtab = .;					\
- 	}								\
- 									\
- 	/* Kernel symbol table: GPL-only symbols */			\
- 	__ksymtab_gpl     : AT(ADDR(__ksymtab_gpl) - LOAD_OFFSET) {	\
- 		__start___ksymtab_gpl = .;				\
--		KEEP(*(SORT(___ksymtab_gpl+*)))				\
-+		SYMTAB_KEEP_GPL						\
- 		__stop___ksymtab_gpl = .;				\
- 	}								\
- 									\
-@@ -476,7 +486,7 @@
- 									\
- 	/* Kernel symbol table: strings */				\
-         __ksymtab_strings : AT(ADDR(__ksymtab_strings) - LOAD_OFFSET) {	\
--		*(__ksymtab_strings)					\
-+		*(__ksymtab_strings+*)					\
- 	}								\
- 									\
- 	/* __*init sections */						\
-@@ -905,6 +915,8 @@
- 	EXIT_TEXT							\
- 	EXIT_DATA							\
- 	EXIT_CALL							\
-+	SYMTAB_DISCARD							\
-+	SYMTAB_DISCARD_GPL						\
- 	*(.discard)							\
- 	*(.discard.*)							\
- 	*(.modinfo)							\
---- a/include/linux/export.h
-+++ b/include/linux/export.h
-@@ -98,18 +98,26 @@ struct kernel_symbol {
- 
- #else
- 
-+#ifdef MODULE
-+#define __EXPORT_SUFFIX(sym)
-+#else
-+#define __EXPORT_SUFFIX(sym) "+" #sym
-+#endif
-+
- #define ___export_symbol_common(sym, sec)				\
- 	extern typeof(sym) sym;						\
- 	__CRC_SYMBOL(sym, sec);						\
- 	static const char __kstrtab_##sym[]				\
--	__attribute__((section("__ksymtab_strings"), used, aligned(1)))	\
-+	__attribute__((section("__ksymtab_strings"			\
-+	  __EXPORT_SUFFIX(sym)), used, aligned(1)))			\
- 	= #sym								\
- 
- /* For every exported symbol, place a struct in the __ksymtab section */
- #define ___EXPORT_SYMBOL_NS(sym, sec, ns)				\
- 	___export_symbol_common(sym, sec);				\
- 	static const char __kstrtabns_##sym[]				\
--	__attribute__((section("__ksymtab_strings"), used, aligned(1)))	\
-+	__attribute__((section("__ksymtab_strings"			\
-+	  __EXPORT_SUFFIX(sym)), used, aligned(1)))			\
- 	= #ns;								\
- 	__KSYMTAB_ENTRY_NS(sym, sec)
- 
---- a/scripts/Makefile.build
-+++ b/scripts/Makefile.build
-@@ -350,7 +350,7 @@ targets += $(extra-y) $(MAKECMDGOALS) $(
- # Linker scripts preprocessor (.lds.S -> .lds)
- # ---------------------------------------------------------------------------
- quiet_cmd_cpp_lds_S = LDS     $@
--      cmd_cpp_lds_S = $(CPP) $(cpp_flags) -P -U$(ARCH) \
-+      cmd_cpp_lds_S = $(CPP) $(EXTRA_LDSFLAGS) $(cpp_flags) -P -U$(ARCH) \
- 	                     -D__ASSEMBLY__ -DLINKER_SCRIPT -o $@ $<
- 
- $(obj)/%.lds: $(src)/%.lds.S FORCE