From a4aec0f3f506ae5435e03aa9ed4fca31019985d0 Mon Sep 17 00:00:00 2001 From: Paul Cercueil Date: Sun, 26 Jul 2020 18:58:28 +0200 Subject: [PATCH] MIPS: Remove legacy MIPS_MACHINE option The CONFIG_MIPS_MACHINE option is dead code that hasn't been used in years. The Kconfig option is not selected anywhere, and the is not included anywhere either. To make things worse, for years it co-existed with a separate MIPS machine implementation as . The two defined the 'mips_machine' structure with different fields, and the 'MIPS_MACHINE' macro with different parameters. The two used the same memory area (defined by the linker script) to store data, and you could totally use the two at the same time for all kinds of funny results. Signed-off-by: Paul Cercueil Signed-off-by: Thomas Bogendoerfer --- arch/mips/Kconfig | 3 -- arch/mips/include/asm/mips_machine.h | 46 --------------------- arch/mips/kernel/Makefile | 1 - arch/mips/kernel/mips_machine.c | 62 ---------------------------- 4 files changed, 112 deletions(-) delete mode 100644 arch/mips/include/asm/mips_machine.h delete mode 100644 arch/mips/kernel/mips_machine.c diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 3d4a3a7d83a2..f6bb446d30f0 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -1150,9 +1150,6 @@ config MIPS_MSC config SYNC_R4K bool -config MIPS_MACHINE - def_bool n - config NO_IOPORT_MAP def_bool n diff --git a/arch/mips/include/asm/mips_machine.h b/arch/mips/include/asm/mips_machine.h deleted file mode 100644 index 4efecb70c24e..000000000000 --- a/arch/mips/include/asm/mips_machine.h +++ /dev/null @@ -1,46 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ -/* - * Copyright (C) 2008-2010 Gabor Juhos - */ - -#ifndef __ASM_MIPS_MACHINE_H -#define __ASM_MIPS_MACHINE_H - -#include -#include - -#include - -struct mips_machine { - unsigned long mach_type; - const char *mach_id; - const char *mach_name; - void (*mach_setup)(void); -}; - -#define MIPS_MACHINE(_type, _id, _name, _setup) \ -static const char machine_name_##_type[] __initconst \ - __aligned(1) = _name; \ -static const char machine_id_##_type[] __initconst \ - __aligned(1) = _id; \ -static struct mips_machine machine_##_type \ - __used __section(.mips.machines.init) = \ -{ \ - .mach_type = _type, \ - .mach_id = machine_id_##_type, \ - .mach_name = machine_name_##_type, \ - .mach_setup = _setup, \ -}; - -extern long __mips_machines_start; -extern long __mips_machines_end; - -#ifdef CONFIG_MIPS_MACHINE -int mips_machtype_setup(char *id) __init; -void mips_machine_setup(void) __init; -#else -static inline int mips_machtype_setup(char *id) { return 1; } -static inline void mips_machine_setup(void) { } -#endif /* CONFIG_MIPS_MACHINE */ - -#endif /* __ASM_MIPS_MACHINE_H */ diff --git a/arch/mips/kernel/Makefile b/arch/mips/kernel/Makefile index 8c7a043295ed..13a26d254829 100644 --- a/arch/mips/kernel/Makefile +++ b/arch/mips/kernel/Makefile @@ -93,7 +93,6 @@ obj-$(CONFIG_CRASH_DUMP) += crash_dump.o obj-$(CONFIG_EARLY_PRINTK) += early_printk.o obj-$(CONFIG_EARLY_PRINTK_8250) += early_printk_8250.o obj-$(CONFIG_SPINLOCK_TEST) += spinlock_test.o -obj-$(CONFIG_MIPS_MACHINE) += mips_machine.o obj-$(CONFIG_MIPSR2_TO_R6_EMULATOR) += mips-r2-to-r6-emul.o CFLAGS_cpu-bugs64.o = $(shell if $(CC) $(KBUILD_CFLAGS) -Wa,-mdaddi -c -o /dev/null -x c /dev/null >/dev/null 2>&1; then echo "-DHAVE_AS_SET_DADDI"; fi) diff --git a/arch/mips/kernel/mips_machine.c b/arch/mips/kernel/mips_machine.c deleted file mode 100644 index 4c509641723c..000000000000 --- a/arch/mips/kernel/mips_machine.c +++ /dev/null @@ -1,62 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Copyright (C) 2008-2010 Gabor Juhos - */ -#include -#include -#include - -#include -#include - -static struct mips_machine *mips_machine __initdata; - -#define for_each_machine(mach) \ - for ((mach) = (struct mips_machine *)&__mips_machines_start; \ - (mach) && \ - (unsigned long)(mach) < (unsigned long)&__mips_machines_end; \ - (mach)++) - -__init int mips_machtype_setup(char *id) -{ - struct mips_machine *mach; - - for_each_machine(mach) { - if (mach->mach_id == NULL) - continue; - - if (strcmp(mach->mach_id, id) == 0) { - mips_machtype = mach->mach_type; - return 0; - } - } - - pr_err("MIPS: no machine found for id '%s', supported machines:\n", id); - pr_err("%-24s %s\n", "id", "name"); - for_each_machine(mach) - pr_err("%-24s %s\n", mach->mach_id, mach->mach_name); - - return 1; -} - -__setup("machtype=", mips_machtype_setup); - -__init void mips_machine_setup(void) -{ - struct mips_machine *mach; - - for_each_machine(mach) { - if (mips_machtype == mach->mach_type) { - mips_machine = mach; - break; - } - } - - if (!mips_machine) - return; - - mips_set_machine_name(mips_machine->mach_name); - - if (mips_machine->mach_setup) - mips_machine->mach_setup(); -} -- 2.20.1