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, 107 deletions

diff --git a/target/linux/generic/backport-5.4/311-MIPS-Fix-exception-handler-memcpy.patch b/target/linux/generic/backport-5.4/311-MIPS-Fix-exception-handler-memcpy.patch
deleted file mode 100644
index 5a6725c7a0..0000000000
--- a/target/linux/generic/backport-5.4/311-MIPS-Fix-exception-handler-memcpy.patch
+++ /dev/null
@@ -1,107 +0,0 @@
-From e01c91a360793298c9e1656a61faceff01487a43 Mon Sep 17 00:00:00 2001
-From: Ben Hutchings <ben@decadent.org.uk>
-Date: Sat, 23 May 2020 23:50:34 +0800
-Subject: [PATCH] MIPS: Fix exception handler memcpy()
-
-The exception handler subroutines are declared as a single char, but
-when copied to the required addresses the copy length is 0x80.
-
-When range checks are enabled for memcpy() this results in a build
-failure, with error messages such as:
-
-In file included from arch/mips/mti-malta/malta-init.c:15:
-In function 'memcpy',
-    inlined from 'mips_nmi_setup' at arch/mips/mti-malta/malta-init.c:98:2:
-include/linux/string.h:376:4: error: call to '__read_overflow2' declared with attribute error: detected read beyond size of object passed as 2nd parameter
-  376 |    __read_overflow2();
-      |    ^~~~~~~~~~~~~~~~~~
-
-Change the declarations to use type char[].
-
-Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
-Signed-off-by: YunQiang Su <syq@debian.org>
-Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
----
- arch/mips/loongson64/common/init.c | 4 ++--
- arch/mips/mti-malta/malta-init.c   | 8 ++++----
- arch/mips/pistachio/init.c         | 8 ++++----
- 3 files changed, 10 insertions(+), 10 deletions(-)
-
---- a/arch/mips/loongson64/common/init.c
-+++ b/arch/mips/loongson64/common/init.c
-@@ -18,10 +18,10 @@ unsigned long __maybe_unused _loongson_a
- static void __init mips_nmi_setup(void)
- {
- 	void *base;
--	extern char except_vec_nmi;
-+	extern char except_vec_nmi[];
- 
- 	base = (void *)(CAC_BASE + 0x380);
--	memcpy(base, &except_vec_nmi, 0x80);
-+	memcpy(base, except_vec_nmi, 0x80);
- 	flush_icache_range((unsigned long)base, (unsigned long)base + 0x80);
- }
- 
---- a/arch/mips/mti-malta/malta-init.c
-+++ b/arch/mips/mti-malta/malta-init.c
-@@ -90,24 +90,24 @@ static void __init console_config(void)
- static void __init mips_nmi_setup(void)
- {
- 	void *base;
--	extern char except_vec_nmi;
-+	extern char except_vec_nmi[];
- 
- 	base = cpu_has_veic ?
- 		(void *)(CAC_BASE + 0xa80) :
- 		(void *)(CAC_BASE + 0x380);
--	memcpy(base, &except_vec_nmi, 0x80);
-+	memcpy(base, except_vec_nmi, 0x80);
- 	flush_icache_range((unsigned long)base, (unsigned long)base + 0x80);
- }
- 
- static void __init mips_ejtag_setup(void)
- {
- 	void *base;
--	extern char except_vec_ejtag_debug;
-+	extern char except_vec_ejtag_debug[];
- 
- 	base = cpu_has_veic ?
- 		(void *)(CAC_BASE + 0xa00) :
- 		(void *)(CAC_BASE + 0x300);
--	memcpy(base, &except_vec_ejtag_debug, 0x80);
-+	memcpy(base, except_vec_ejtag_debug, 0x80);
- 	flush_icache_range((unsigned long)base, (unsigned long)base + 0x80);
- }
- 
---- a/arch/mips/pistachio/init.c
-+++ b/arch/mips/pistachio/init.c
-@@ -83,12 +83,12 @@ phys_addr_t mips_cdmm_phys_base(void)
- static void __init mips_nmi_setup(void)
- {
- 	void *base;
--	extern char except_vec_nmi;
-+	extern char except_vec_nmi[];
- 
- 	base = cpu_has_veic ?
- 		(void *)(CAC_BASE + 0xa80) :
- 		(void *)(CAC_BASE + 0x380);
--	memcpy(base, &except_vec_nmi, 0x80);
-+	memcpy(base, except_vec_nmi, 0x80);
- 	flush_icache_range((unsigned long)base,
- 			   (unsigned long)base + 0x80);
- }
-@@ -96,12 +96,12 @@ static void __init mips_nmi_setup(void)
- static void __init mips_ejtag_setup(void)
- {
- 	void *base;
--	extern char except_vec_ejtag_debug;
-+	extern char except_vec_ejtag_debug[];
- 
- 	base = cpu_has_veic ?
- 		(void *)(CAC_BASE + 0xa00) :
- 		(void *)(CAC_BASE + 0x300);
--	memcpy(base, &except_vec_ejtag_debug, 0x80);
-+	memcpy(base, except_vec_ejtag_debug, 0x80);
- 	flush_icache_range((unsigned long)base,
- 			   (unsigned long)base + 0x80);
- }