MIPS: Remove addinitrd and CONFIG_PROBE_INITRD_HEADER

Addinitrd has been superseded by initramfs ages ago.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/Kconfig

@@ -2041,15 +2041,6 @@ config STACKTRACE_SUPPORT
 
 source "init/Kconfig"
 
-config PROBE_INITRD_HEADER
-	bool "Probe initrd header created by addinitrd"
-	depends on BLK_DEV_INITRD
-	help
-	  Probe initrd header at the last page of kernel image.
-	  Say Y here if you are using arch/mips/boot/addinitrd.c to
-	  add initrd or initramfs image to the kernel image.
-	  Otherwise, say N.
-
 source "kernel/Kconfig.freezer"
 
 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"

arch/mips/boot/Makefile

@@ -25,7 +25,7 @@ strip-flags	= $(addprefix --remove-section=,$(drop-sections))
 
 VMLINUX = vmlinux
 
-all: vmlinux.ecoff vmlinux.srec addinitrd
+all: vmlinux.ecoff vmlinux.srec
 
 vmlinux.ecoff: $(obj)/elf2ecoff $(VMLINUX)
 	$(obj)/elf2ecoff $(VMLINUX) vmlinux.ecoff $(E2EFLAGS)
@@ -39,11 +39,7 @@ vmlinux.bin: $(VMLINUX)
 vmlinux.srec: $(VMLINUX)
 	$(OBJCOPY) -S -O srec $(strip-flags) $(VMLINUX) $(obj)/vmlinux.srec
 
-$(obj)/addinitrd: $(obj)/addinitrd.c
-	$(HOSTCC) -o $@ $^
-
-clean-files += addinitrd \
-	       elf2ecoff \
+clean-files += elf2ecoff \
 	       vmlinux.bin \
 	       vmlinux.ecoff \
 	       vmlinux.srec

arch/mips/boot/addinitrd.c

-/*
- * addinitrd - program to add a initrd image to an ecoff kernel
- *
- * (C) 1999 Thomas Bogendoerfer
- * minor modifications, cleanup: Guido Guenther <agx@sigxcpu.org>
- * further cleanup: Maciej W. Rozycki
- */
-
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <stdio.h>
-#include <netinet/in.h>
-
-#include "ecoff.h"
-
-#define MIPS_PAGE_SIZE	4096
-#define MIPS_PAGE_MASK	(MIPS_PAGE_SIZE-1)
-
-#define swab16(x) \
-        ((unsigned short)( \
-                (((unsigned short)(x) & (unsigned short)0x00ffU) << 8) | \
-                (((unsigned short)(x) & (unsigned short)0xff00U) >> 8) ))
-
-#define swab32(x) \
-        ((unsigned int)( \
-                (((unsigned int)(x) & (unsigned int)0x000000ffUL) << 24) | \
-                (((unsigned int)(x) & (unsigned int)0x0000ff00UL) <<  8) | \
-                (((unsigned int)(x) & (unsigned int)0x00ff0000UL) >>  8) | \
-                (((unsigned int)(x) & (unsigned int)0xff000000UL) >> 24) ))
-
-#define SWAB(a)	(swab ? swab32(a) : (a))
-
-void die(char *s)
-{
-	perror(s);
-	exit(1);
-}
-
-int main(int argc, char *argv[])
-{
-	int fd_vmlinux, fd_initrd, fd_outfile;
-	FILHDR efile;
-	AOUTHDR eaout;
-	SCNHDR esecs[3];
-	struct stat st;
-	char buf[1024];
-	unsigned long loadaddr;
-	unsigned long initrd_header[2];
-	int i, cnt;
-	int swab = 0;
-
-	if (argc != 4) {
-		printf("Usage: %s <vmlinux> <initrd> <outfile>\n", argv[0]);
-		exit(1);
-	}
-
-	if ((fd_vmlinux = open (argv[1], O_RDONLY)) < 0)
-		 die("open vmlinux");
-	if (read (fd_vmlinux, &efile, sizeof efile) != sizeof efile)
-		die("read file header");
-	if (read (fd_vmlinux, &eaout, sizeof eaout) != sizeof eaout)
-		die("read aout header");
-	if (read (fd_vmlinux, esecs, sizeof esecs) != sizeof esecs)
-		die("read section headers");
-	/*
-	 * check whether the file is good for us
-	 */
-	/* TBD */
-
-	/*
-	 * check, if we have to swab words
-	 */
-	if (ntohs(0xaa55) == 0xaa55) {
-		if (efile.f_magic == swab16(MIPSELMAGIC))
-			swab = 1;
-	} else {
-		if (efile.f_magic == swab16(MIPSEBMAGIC))
-			swab = 1;
-	}
-
-	/* make sure we have an empty data segment for the initrd */
-	if (eaout.dsize || esecs[1].s_size) {
-		fprintf(stderr, "Data segment not empty. Giving up!\n");
-		exit(1);
-	}
-	if ((fd_initrd = open (argv[2], O_RDONLY)) < 0)
-		die("open initrd");
-	if (fstat (fd_initrd, &st) < 0)
-		die("fstat initrd");
-	loadaddr = ((SWAB(esecs[2].s_vaddr) + SWAB(esecs[2].s_size)
-			+ MIPS_PAGE_SIZE-1) & ~MIPS_PAGE_MASK) - 8;
-	if (loadaddr < (SWAB(esecs[2].s_vaddr) + SWAB(esecs[2].s_size)))
-		loadaddr += MIPS_PAGE_SIZE;
-	initrd_header[0] = SWAB(0x494E5244);
-	initrd_header[1] = SWAB(st.st_size);
-	eaout.dsize = esecs[1].s_size = initrd_header[1] = SWAB(st.st_size+8);
-	eaout.data_start = esecs[1].s_vaddr = esecs[1].s_paddr = SWAB(loadaddr);
-
-	if ((fd_outfile = open (argv[3], O_RDWR|O_CREAT|O_TRUNC, 0666)) < 0)
-		die("open outfile");
-	if (write (fd_outfile, &efile, sizeof efile) != sizeof efile)
-		die("write file header");
-	if (write (fd_outfile, &eaout, sizeof eaout) != sizeof eaout)
-		die("write aout header");
-	if (write (fd_outfile, esecs, sizeof esecs) != sizeof esecs)
-		die("write section headers");
-	/* skip padding */
-	if(lseek(fd_vmlinux, SWAB(esecs[0].s_scnptr), SEEK_SET) == (off_t)-1)
-		die("lseek vmlinux");
-	if(lseek(fd_outfile, SWAB(esecs[0].s_scnptr), SEEK_SET) == (off_t)-1)
-		die("lseek outfile");
-	/* copy text segment */
-	cnt = SWAB(eaout.tsize);
-	while (cnt) {
-		if ((i = read (fd_vmlinux, buf, sizeof buf)) <= 0)
-			die("read vmlinux");
-		if (write (fd_outfile, buf, i) != i)
-			die("write vmlinux");
-		cnt -= i;
-	}
-	if (write (fd_outfile, initrd_header, sizeof initrd_header) != sizeof initrd_header)
-		die("write initrd header");
-	while ((i = read (fd_initrd, buf, sizeof buf)) > 0)
-		if (write (fd_outfile, buf, i) != i)
-			die("write initrd");
-	close(fd_vmlinux);
-	close(fd_initrd);
-	return 0;
-}

arch/mips/configs/ar7_defconfig

@@ -265,7 +265,6 @@ CONFIG_DEFAULT_DEADLINE=y
 # CONFIG_DEFAULT_CFQ is not set
 # CONFIG_DEFAULT_NOOP is not set
 CONFIG_DEFAULT_IOSCHED="deadline"
-CONFIG_PROBE_INITRD_HEADER=y
 # CONFIG_FREEZER is not set
 
 #

arch/mips/configs/cavium-octeon_defconfig

@@ -269,7 +269,6 @@ CONFIG_DEFAULT_CFQ=y
 # CONFIG_DEFAULT_NOOP is not set
 CONFIG_DEFAULT_IOSCHED="cfq"
 CONFIG_CLASSIC_RCU=y
-# CONFIG_PROBE_INITRD_HEADER is not set
 # CONFIG_FREEZER is not set
 
 #

arch/mips/configs/rbtx49xx_defconfig

@@ -284,7 +284,6 @@ CONFIG_DEFAULT_AS=y
 # CONFIG_DEFAULT_CFQ is not set
 # CONFIG_DEFAULT_NOOP is not set
 CONFIG_DEFAULT_IOSCHED="anticipatory"
-# CONFIG_PROBE_INITRD_HEADER is not set
 # CONFIG_FREEZER is not set
 
 #

arch/mips/kernel/setup.c

@@ -166,26 +166,8 @@ static unsigned long __init init_initrd(void)
 	 * already set up initrd_start and initrd_end. In these cases
 	 * perfom sanity checks and use them if all looks good.
 	 */
-	if (!initrd_start || initrd_end <= initrd_start) {
-#ifdef CONFIG_PROBE_INITRD_HEADER
-		u32 *initrd_header;
-
-		/*
-		 * See if initrd has been added to the kernel image by
-		 * arch/mips/boot/addinitrd.c. In that case a header is
-		 * prepended to initrd and is made up by 8 bytes. The first
-		 * word is a magic number and the second one is the size of
-		 * initrd.  Initrd start must be page aligned in any cases.
-		 */
-		initrd_header = __va(PAGE_ALIGN(__pa_symbol(&_end) + 8)) - 8;
-		if (initrd_header[0] != 0x494E5244)
-			goto disable;
-		initrd_start = (unsigned long)(initrd_header + 2);
-		initrd_end = initrd_start + initrd_header[1];
-#else
+	if (!initrd_start || initrd_end <= initrd_start)
 		goto disable;
-#endif
-	}
 
 	if (initrd_start & ~PAGE_MASK) {
 		pr_err("initrd start must be page aligned\n");