MIPS: Remove asm/user.h

The struct user definition in this file is not used anywhere (the ELF
core dumper does not use that format). Therefore, remove the header and
instead enable the asm-generic user.h which is an empty header to
satisfy a few generic headers which still try to include user.h.
Signed-off-by: Alex Smith <alex@alex-smith.me.uk>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/7459/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/include/asm/Kbuild

@@ -15,4 +15,5 @@ generic-y += segment.h
 generic-y += serial.h
 generic-y += trace_clock.h
 generic-y += ucontext.h
+generic-y += user.h
 generic-y += xor.h

arch/mips/include/asm/user.h

-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 1994, 1995, 1996, 1999 by Ralf Baechle
- */
-#ifndef _ASM_USER_H
-#define _ASM_USER_H
-
-#include <asm/page.h>
-#include <asm/reg.h>
-
-/*
- * Core file format: The core file is written in such a way that gdb
- * can understand it and provide useful information to the user (under
- * linux we use the `trad-core' bfd, NOT the irix-core).  The file
- * contents are as follows:
- *
- *  upage: 1 page consisting of a user struct that tells gdb
- *	what is present in the file.  Directly after this is a
- *	copy of the task_struct, which is currently not used by gdb,
- *	but it may come in handy at some point.	 All of the registers
- *	are stored as part of the upage.  The upage should always be
- *	only one page long.
- *  data: The data segment follows next.  We use current->end_text to
- *	current->brk to pick up all of the user variables, plus any memory
- *	that may have been sbrk'ed.  No attempt is made to determine if a
- *	page is demand-zero or if a page is totally unused, we just cover
- *	the entire range.  All of the addresses are rounded in such a way
- *	that an integral number of pages is written.
- *  stack: We need the stack information in order to get a meaningful
- *	backtrace.  We need to write the data from usp to
- *	current->start_stack, so we round each of these in order to be able
- *	to write an integer number of pages.
- */
-struct user {
-	unsigned long	regs[EF_SIZE /		/* integer and fp regs */
-			sizeof(unsigned long) + 64];
-	size_t		u_tsize;		/* text size (pages) */
-	size_t		u_dsize;		/* data size (pages) */
-	size_t		u_ssize;		/* stack size (pages) */
-	unsigned long	start_code;		/* text starting address */
-	unsigned long	start_data;		/* data starting address */
-	unsigned long	start_stack;		/* stack starting address */
-	long int	signal;			/* signal causing core dump */
-	unsigned long	u_ar0;			/* help gdb find registers */
-	unsigned long	magic;			/* identifies a core file */
-	char		u_comm[32];		/* user command name */
-};
-
-#define NBPG			PAGE_SIZE
-#define UPAGES			1
-#define HOST_TEXT_START_ADDR	(u.start_code)
-#define HOST_DATA_START_ADDR	(u.start_data)
-#define HOST_STACK_END_ADDR	(u.start_stack + u.u_ssize * NBPG)
-
-#endif /* _ASM_USER_H */

arch/mips/kernel/process.c

@@ -21,7 +21,6 @@
 #include <linux/mman.h>
 #include <linux/personality.h>
 #include <linux/sys.h>
-#include <linux/user.h>
 #include <linux/init.h>
 #include <linux/completion.h>
 #include <linux/kallsyms.h>
@@ -36,6 +35,7 @@
 #include <asm/pgtable.h>
 #include <asm/mipsregs.h>
 #include <asm/processor.h>
+#include <asm/reg.h>
 #include <asm/uaccess.h>
 #include <asm/io.h>
 #include <asm/elf.h>

arch/mips/kernel/ptrace.c

@@ -24,7 +24,6 @@
 #include <linux/ptrace.h>
 #include <linux/regset.h>
 #include <linux/smp.h>
-#include <linux/user.h>
 #include <linux/security.h>
 #include <linux/tracehook.h>
 #include <linux/audit.h>

arch/mips/kernel/ptrace32.c

@@ -22,7 +22,6 @@
 #include <linux/errno.h>
 #include <linux/ptrace.h>
 #include <linux/smp.h>
-#include <linux/user.h>
 #include <linux/security.h>
 
 #include <asm/cpu.h>
@@ -32,6 +31,7 @@
 #include <asm/mipsmtregs.h>
 #include <asm/pgtable.h>
 #include <asm/page.h>
+#include <asm/reg.h>
 #include <asm/uaccess.h>
 #include <asm/bootinfo.h>