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, 281 deletions

diff --git a/target/linux/generic/pending-5.4/330-MIPS-kexec-Accept-command-line-parameters-from-users.patch b/target/linux/generic/pending-5.4/330-MIPS-kexec-Accept-command-line-parameters-from-users.patch
deleted file mode 100644
index 2808c95322..0000000000
--- a/target/linux/generic/pending-5.4/330-MIPS-kexec-Accept-command-line-parameters-from-users.patch
+++ /dev/null
@@ -1,281 +0,0 @@
-From: Yousong Zhou <yszhou4tech@gmail.com>
-Subject: MIPS: kexec: Accept command line parameters from userspace.
-
-Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
----
- arch/mips/kernel/machine_kexec.c   |  153 +++++++++++++++++++++++++++++++-----
- arch/mips/kernel/machine_kexec.h   |   20 +++++
- arch/mips/kernel/relocate_kernel.S |   21 +++--
- 3 files changed, 167 insertions(+), 27 deletions(-)
- create mode 100644 arch/mips/kernel/machine_kexec.h
-
---- a/arch/mips/kernel/machine_kexec.c
-+++ b/arch/mips/kernel/machine_kexec.c
-@@ -9,14 +9,11 @@
- #include <linux/delay.h>
- #include <linux/libfdt.h>
- 
-+#include <asm/bootinfo.h>
- #include <asm/cacheflush.h>
- #include <asm/page.h>
--
--extern const unsigned char relocate_new_kernel[];
--extern const size_t relocate_new_kernel_size;
--
--extern unsigned long kexec_start_address;
--extern unsigned long kexec_indirection_page;
-+#include <linux/uaccess.h>
-+#include "machine_kexec.h"
- 
- static unsigned long reboot_code_buffer;
- 
-@@ -30,6 +27,101 @@ void (*_crash_smp_send_stop)(void) = NUL
- void (*_machine_kexec_shutdown)(void) = NULL;
- void (*_machine_crash_shutdown)(struct pt_regs *regs) = NULL;
- 
-+static void machine_kexec_print_args(void)
-+{
-+	unsigned long argc = (int)kexec_args[0];
-+	int i;
-+
-+	pr_info("kexec_args[0] (argc): %lu\n", argc);
-+	pr_info("kexec_args[1] (argv): %p\n", (void *)kexec_args[1]);
-+	pr_info("kexec_args[2] (env ): %p\n", (void *)kexec_args[2]);
-+	pr_info("kexec_args[3] (desc): %p\n", (void *)kexec_args[3]);
-+
-+	for (i = 0; i < argc; i++) {
-+		pr_info("kexec_argv[%d] = %p, %s\n",
-+				i, kexec_argv[i], kexec_argv[i]);
-+	}
-+}
-+
-+static void machine_kexec_init_argv(struct kimage *image)
-+{
-+	void __user *buf = NULL;
-+	size_t bufsz;
-+	size_t size;
-+	int i;
-+
-+	bufsz = 0;
-+	for (i = 0; i < image->nr_segments; i++) {
-+		struct kexec_segment *seg;
-+
-+		seg = &image->segment[i];
-+		if (seg->bufsz < 6)
-+			continue;
-+
-+		if (strncmp((char *) seg->buf, "kexec ", 6))
-+			continue;
-+
-+		buf = seg->buf;
-+		bufsz = seg->bufsz;
-+		break;
-+	}
-+
-+	if (!buf)
-+		return;
-+
-+	size = KEXEC_COMMAND_LINE_SIZE;
-+	size = min(size, bufsz);
-+	if (size < bufsz)
-+		pr_warn("kexec command line truncated to %zd bytes\n", size);
-+
-+	/* Copy to kernel space */
-+	if (copy_from_user(kexec_argv_buf, buf, size))
-+		pr_warn("kexec command line copy to kernel space failed\n");
-+
-+	kexec_argv_buf[size - 1] = 0;
-+}
-+
-+static void machine_kexec_parse_argv(struct kimage *image)
-+{
-+	char *reboot_code_buffer;
-+	int reloc_delta;
-+	char *ptr;
-+	int argc;
-+	int i;
-+
-+	ptr = kexec_argv_buf;
-+	argc = 0;
-+
-+	/*
-+	 * convert command line string to array of parameters
-+	 * (as bootloader does).
-+	 */
-+	while (ptr && *ptr && (KEXEC_MAX_ARGC > argc)) {
-+		if (*ptr == ' ') {
-+			*ptr++ = '\0';
-+			continue;
-+		}
-+
-+		kexec_argv[argc++] = ptr;
-+		ptr = strchr(ptr, ' ');
-+	}
-+
-+	if (!argc)
-+		return;
-+
-+	kexec_args[0] = argc;
-+	kexec_args[1] = (unsigned long)kexec_argv;
-+	kexec_args[2] = 0;
-+	kexec_args[3] = 0;
-+
-+	reboot_code_buffer = page_address(image->control_code_page);
-+	reloc_delta = reboot_code_buffer - (char *)kexec_relocate_new_kernel;
-+
-+	kexec_args[1] += reloc_delta;
-+	for (i = 0; i < argc; i++)
-+		kexec_argv[i] += reloc_delta;
-+}
-+
- static void kexec_image_info(const struct kimage *kimage)
- {
- 	unsigned long i;
-@@ -99,6 +191,18 @@ machine_kexec_prepare(struct kimage *kim
- #endif
- 
- 	kexec_image_info(kimage);
-+	/*
-+	 * Whenever arguments passed from kexec-tools, Init the arguments as
-+	 * the original ones to try avoiding booting failure.
-+	 */
-+
-+	kexec_args[0] = fw_arg0;
-+	kexec_args[1] = fw_arg1;
-+	kexec_args[2] = fw_arg2;
-+	kexec_args[3] = fw_arg3;
-+
-+	machine_kexec_init_argv(kimage);
-+	machine_kexec_parse_argv(kimage);
- 
- 	if (_machine_kexec_prepare)
- 		return _machine_kexec_prepare(kimage);
-@@ -161,7 +265,7 @@ machine_crash_shutdown(struct pt_regs *r
- void kexec_nonboot_cpu_jump(void)
- {
- 	local_flush_icache_range((unsigned long)relocated_kexec_smp_wait,
--				 reboot_code_buffer + relocate_new_kernel_size);
-+				 reboot_code_buffer + KEXEC_RELOCATE_NEW_KERNEL_SIZE);
- 
- 	relocated_kexec_smp_wait(NULL);
- }
-@@ -199,7 +303,7 @@ void kexec_reboot(void)
- 	 * machine_kexec() CPU.
- 	 */
- 	local_flush_icache_range(reboot_code_buffer,
--				 reboot_code_buffer + relocate_new_kernel_size);
-+				 reboot_code_buffer + KEXEC_RELOCATE_NEW_KERNEL_SIZE);
- 
- 	do_kexec = (void *)reboot_code_buffer;
- 	do_kexec();
-@@ -212,10 +316,12 @@ machine_kexec(struct kimage *image)
- 	unsigned long *ptr;
- 
- 	reboot_code_buffer =
--	  (unsigned long)page_address(image->control_code_page);
-+		(unsigned long)page_address(image->control_code_page);
-+	pr_info("reboot_code_buffer = %p\n", (void *)reboot_code_buffer);
- 
- 	kexec_start_address =
- 		(unsigned long) phys_to_virt(image->start);
-+	pr_info("kexec_start_address = %p\n", (void *)kexec_start_address);
- 
- 	if (image->type == KEXEC_TYPE_DEFAULT) {
- 		kexec_indirection_page =
-@@ -223,9 +329,19 @@ machine_kexec(struct kimage *image)
- 	} else {
- 		kexec_indirection_page = (unsigned long)&image->head;
- 	}
-+	pr_info("kexec_indirection_page = %p\n", (void *)kexec_indirection_page);
- 
--	memcpy((void*)reboot_code_buffer, relocate_new_kernel,
--	       relocate_new_kernel_size);
-+	pr_info("Where is memcpy: %p\n", memcpy);
-+	pr_info("kexec_relocate_new_kernel = %p, kexec_relocate_new_kernel_end = %p\n",
-+		(void *)kexec_relocate_new_kernel, &kexec_relocate_new_kernel_end);
-+	pr_info("Copy %lu bytes from %p to %p\n", KEXEC_RELOCATE_NEW_KERNEL_SIZE,
-+		(void *)kexec_relocate_new_kernel, (void *)reboot_code_buffer);
-+	memcpy((void*)reboot_code_buffer, kexec_relocate_new_kernel,
-+	       KEXEC_RELOCATE_NEW_KERNEL_SIZE);
-+
-+	pr_info("Before _print_args().\n");
-+	machine_kexec_print_args();
-+	pr_info("Before eval loop.\n");
- 
- 	/*
- 	 * The generic kexec code builds a page list with physical
-@@ -256,7 +372,7 @@ machine_kexec(struct kimage *image)
- #ifdef CONFIG_SMP
- 	/* All secondary cpus now may jump to kexec_wait cycle */
- 	relocated_kexec_smp_wait = reboot_code_buffer +
--		(void *)(kexec_smp_wait - relocate_new_kernel);
-+		(void *)(kexec_smp_wait - kexec_relocate_new_kernel);
- 	smp_wmb();
- 	atomic_set(&kexec_ready_to_reboot, 1);
- #endif
---- /dev/null
-+++ b/arch/mips/kernel/machine_kexec.h
-@@ -0,0 +1,20 @@
-+#ifndef _MACHINE_KEXEC_H
-+#define _MACHINE_KEXEC_H
-+
-+#ifndef __ASSEMBLY__
-+extern const unsigned char kexec_relocate_new_kernel[];
-+extern unsigned long kexec_relocate_new_kernel_end;
-+extern unsigned long kexec_start_address;
-+extern unsigned long kexec_indirection_page;
-+
-+extern char kexec_argv_buf[];
-+extern char *kexec_argv[];
-+
-+#define KEXEC_RELOCATE_NEW_KERNEL_SIZE	((unsigned long)&kexec_relocate_new_kernel_end - (unsigned long)kexec_relocate_new_kernel)
-+#endif /* !__ASSEMBLY__ */
-+
-+#define KEXEC_COMMAND_LINE_SIZE		256
-+#define KEXEC_ARGV_SIZE			(KEXEC_COMMAND_LINE_SIZE / 16)
-+#define KEXEC_MAX_ARGC			(KEXEC_ARGV_SIZE / sizeof(long))
-+
-+#endif
---- a/arch/mips/kernel/relocate_kernel.S
-+++ b/arch/mips/kernel/relocate_kernel.S
-@@ -10,8 +10,9 @@
- #include <asm/mipsregs.h>
- #include <asm/stackframe.h>
- #include <asm/addrspace.h>
-+#include "machine_kexec.h"
- 
--LEAF(relocate_new_kernel)
-+LEAF(kexec_relocate_new_kernel)
- 	PTR_L a0,	arg0
- 	PTR_L a1,	arg1
- 	PTR_L a2,	arg2
-@@ -96,7 +97,7 @@ done:
- #endif
- 	/* jump to kexec_start_address */
- 	j		s1
--	END(relocate_new_kernel)
-+	END(kexec_relocate_new_kernel)
- 
- #ifdef CONFIG_SMP
- /*
-@@ -182,9 +183,15 @@ kexec_indirection_page:
- 	PTR		0
- 	.size		kexec_indirection_page, PTRSIZE
- 
--relocate_new_kernel_end:
-+kexec_argv_buf:
-+	EXPORT(kexec_argv_buf)
-+	.skip		KEXEC_COMMAND_LINE_SIZE
-+	.size		kexec_argv_buf, KEXEC_COMMAND_LINE_SIZE
-+
-+kexec_argv:
-+	EXPORT(kexec_argv)
-+	.skip		KEXEC_ARGV_SIZE
-+	.size		kexec_argv, KEXEC_ARGV_SIZE
- 
--relocate_new_kernel_size:
--	EXPORT(relocate_new_kernel_size)
--	PTR		relocate_new_kernel_end - relocate_new_kernel
--	.size		relocate_new_kernel_size, PTRSIZE
-+kexec_relocate_new_kernel_end:
-+	EXPORT(kexec_relocate_new_kernel_end)