diff options
Diffstat (limited to 'arch')
82 files changed, 234 insertions, 205 deletions
diff --git a/arch/Kconfig b/arch/Kconfig index 8c8901f80586..5ca66aad0d08 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -301,17 +301,8 @@ config ARCH_HAS_DMA_CLEAR_UNCACHED config ARCH_HAS_CPU_FINALIZE_INIT bool -# Select if arch init_task must go in the __init_task_data section -config ARCH_TASK_STRUCT_ON_STACK - bool - -# Select if arch has its private alloc_task_struct() function -config ARCH_TASK_STRUCT_ALLOCATOR - bool - config HAVE_ARCH_THREAD_STRUCT_WHITELIST bool - depends on !ARCH_TASK_STRUCT_ALLOCATOR help An architecture should select this to provide hardened usercopy knowledge about what region of the thread_struct should be @@ -320,10 +311,6 @@ config HAVE_ARCH_THREAD_STRUCT_WHITELIST should be implemented. Without this, the entire thread_struct field in task_struct will be left whitelisted. -# Select if arch has its private alloc_thread_stack() function -config ARCH_THREAD_STACK_ALLOCATOR - bool - # Select if arch wants to size task_struct dynamically via arch_task_struct_size: config ARCH_WANTS_DYNAMIC_TASK_STRUCT bool diff --git a/arch/alpha/lib/Makefile b/arch/alpha/lib/Makefile index 1cc74f7b50ef..6a779b9018fd 100644 --- a/arch/alpha/lib/Makefile +++ b/arch/alpha/lib/Makefile @@ -4,7 +4,6 @@ # asflags-y := $(KBUILD_CFLAGS) -ccflags-y := -Werror # Many of these routines have implementations tuned for ev6. # Choose them iff we're targeting ev6 specifically. diff --git a/arch/alpha/mm/Makefile b/arch/alpha/mm/Makefile index bd770302eb82..101dbd06b4ce 100644 --- a/arch/alpha/mm/Makefile +++ b/arch/alpha/mm/Makefile @@ -3,6 +3,4 @@ # Makefile for the linux alpha-specific parts of the memory manager. # -ccflags-y := -Werror - obj-y := init.o fault.o diff --git a/arch/arm64/kernel/kexec_image.c b/arch/arm64/kernel/kexec_image.c index 636be6715155..532d72ea42ee 100644 --- a/arch/arm64/kernel/kexec_image.c +++ b/arch/arm64/kernel/kexec_image.c @@ -122,9 +122,9 @@ static void *image_load(struct kimage *image, kernel_segment->memsz -= text_offset; image->start = kernel_segment->mem; - pr_debug("Loaded kernel at 0x%lx bufsz=0x%lx memsz=0x%lx\n", - kernel_segment->mem, kbuf.bufsz, - kernel_segment->memsz); + kexec_dprintk("Loaded kernel at 0x%lx bufsz=0x%lx memsz=0x%lx\n", + kernel_segment->mem, kbuf.bufsz, + kernel_segment->memsz); return NULL; } diff --git a/arch/arm64/kernel/machine_kexec.c b/arch/arm64/kernel/machine_kexec.c index 078910db77a4..b38aae5b488d 100644 --- a/arch/arm64/kernel/machine_kexec.c +++ b/arch/arm64/kernel/machine_kexec.c @@ -32,26 +32,12 @@ static void _kexec_image_info(const char *func, int line, const struct kimage *kimage) { - unsigned long i; - - pr_debug("%s:%d:\n", func, line); - pr_debug(" kexec kimage info:\n"); - pr_debug(" type: %d\n", kimage->type); - pr_debug(" start: %lx\n", kimage->start); - pr_debug(" head: %lx\n", kimage->head); - pr_debug(" nr_segments: %lu\n", kimage->nr_segments); - pr_debug(" dtb_mem: %pa\n", &kimage->arch.dtb_mem); - pr_debug(" kern_reloc: %pa\n", &kimage->arch.kern_reloc); - pr_debug(" el2_vectors: %pa\n", &kimage->arch.el2_vectors); - - for (i = 0; i < kimage->nr_segments; i++) { - pr_debug(" segment[%lu]: %016lx - %016lx, 0x%lx bytes, %lu pages\n", - i, - kimage->segment[i].mem, - kimage->segment[i].mem + kimage->segment[i].memsz, - kimage->segment[i].memsz, - kimage->segment[i].memsz / PAGE_SIZE); - } + kexec_dprintk("%s:%d:\n", func, line); + kexec_dprintk(" kexec kimage info:\n"); + kexec_dprintk(" type: %d\n", kimage->type); + kexec_dprintk(" head: %lx\n", kimage->head); + kexec_dprintk(" kern_reloc: %pa\n", &kimage->arch.kern_reloc); + kexec_dprintk(" el2_vectors: %pa\n", &kimage->arch.el2_vectors); } void machine_kexec_cleanup(struct kimage *kimage) diff --git a/arch/arm64/kernel/machine_kexec_file.c b/arch/arm64/kernel/machine_kexec_file.c index a11a6e14ba89..0e017358f4ba 100644 --- a/arch/arm64/kernel/machine_kexec_file.c +++ b/arch/arm64/kernel/machine_kexec_file.c @@ -127,8 +127,8 @@ int load_other_segments(struct kimage *image, image->elf_load_addr = kbuf.mem; image->elf_headers_sz = headers_sz; - pr_debug("Loaded elf core header at 0x%lx bufsz=0x%lx memsz=0x%lx\n", - image->elf_load_addr, kbuf.bufsz, kbuf.memsz); + kexec_dprintk("Loaded elf core header at 0x%lx bufsz=0x%lx memsz=0x%lx\n", + image->elf_load_addr, kbuf.bufsz, kbuf.memsz); } /* load initrd */ @@ -148,8 +148,8 @@ int load_other_segments(struct kimage *image, goto out_err; initrd_load_addr = kbuf.mem; - pr_debug("Loaded initrd at 0x%lx bufsz=0x%lx memsz=0x%lx\n", - initrd_load_addr, kbuf.bufsz, kbuf.memsz); + kexec_dprintk("Loaded initrd at 0x%lx bufsz=0x%lx memsz=0x%lx\n", + initrd_load_addr, kbuf.bufsz, kbuf.memsz); } /* load dtb */ @@ -179,8 +179,8 @@ int load_other_segments(struct kimage *image, image->arch.dtb = dtb; image->arch.dtb_mem = kbuf.mem; - pr_debug("Loaded dtb at 0x%lx bufsz=0x%lx memsz=0x%lx\n", - kbuf.mem, kbuf.bufsz, kbuf.memsz); + kexec_dprintk("Loaded dtb at 0x%lx bufsz=0x%lx memsz=0x%lx\n", + kbuf.mem, kbuf.bufsz, kbuf.memsz); return 0; diff --git a/arch/hexagon/include/asm/irq.h b/arch/hexagon/include/asm/irq.h index 1f7f1292f701..a60d26754caa 100644 --- a/arch/hexagon/include/asm/irq.h +++ b/arch/hexagon/include/asm/irq.h @@ -20,4 +20,7 @@ #include <asm-generic/irq.h> +struct pt_regs; +void arch_do_IRQ(struct pt_regs *); + #endif diff --git a/arch/hexagon/kernel/process.c b/arch/hexagon/kernel/process.c index dd7f74ea2c20..2a77bfd75694 100644 --- a/arch/hexagon/kernel/process.c +++ b/arch/hexagon/kernel/process.c @@ -5,6 +5,7 @@ * Copyright (c) 2010-2012, The Linux Foundation. All rights reserved. */ +#include <linux/cpu.h> #include <linux/sched.h> #include <linux/sched/debug.h> #include <linux/sched/task.h> @@ -152,6 +153,7 @@ unsigned long __get_wchan(struct task_struct *p) * Returns 0 if there's no need to re-check for more work. */ +int do_work_pending(struct pt_regs *regs, u32 thread_info_flags); int do_work_pending(struct pt_regs *regs, u32 thread_info_flags) { if (!(thread_info_flags & _TIF_WORK_MASK)) { diff --git a/arch/hexagon/kernel/reset.c b/arch/hexagon/kernel/reset.c index da36114d928f..efd70a8d2526 100644 --- a/arch/hexagon/kernel/reset.c +++ b/arch/hexagon/kernel/reset.c @@ -3,6 +3,7 @@ * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved. */ +#include <linux/reboot.h> #include <linux/smp.h> #include <asm/hexagon_vm.h> diff --git a/arch/hexagon/kernel/signal.c b/arch/hexagon/kernel/signal.c index bcba31e9e0ae..d301f4621553 100644 --- a/arch/hexagon/kernel/signal.c +++ b/arch/hexagon/kernel/signal.c @@ -220,7 +220,7 @@ no_restart: * Architecture-specific wrappers for signal-related system calls */ -asmlinkage int sys_rt_sigreturn(void) +SYSCALL_DEFINE0(rt_sigreturn) { struct pt_regs *regs = current_pt_regs(); struct rt_sigframe __user *frame; diff --git a/arch/hexagon/kernel/smp.c b/arch/hexagon/kernel/smp.c index 4e8bee25b8c6..608884bc3396 100644 --- a/arch/hexagon/kernel/smp.c +++ b/arch/hexagon/kernel/smp.c @@ -79,7 +79,7 @@ void smp_vm_unmask_irq(void *info) * Specifically, first arg is irq, second is the irq_desc. */ -irqreturn_t handle_ipi(int irq, void *desc) +static irqreturn_t handle_ipi(int irq, void *desc) { int cpu = smp_processor_id(); struct ipi_data *ipi = &per_cpu(ipi_data, cpu); @@ -124,7 +124,7 @@ void __init smp_prepare_boot_cpu(void) * to point to current thread info */ -void start_secondary(void) +static void start_secondary(void) { unsigned long thread_ptr; unsigned int cpu, irq; diff --git a/arch/hexagon/kernel/time.c b/arch/hexagon/kernel/time.c index febc95714d75..f0f207e2a694 100644 --- a/arch/hexagon/kernel/time.c +++ b/arch/hexagon/kernel/time.c @@ -17,7 +17,9 @@ #include <linux/of_irq.h> #include <linux/module.h> +#include <asm/delay.h> #include <asm/hexagon_vm.h> +#include <asm/time.h> #define TIMER_ENABLE BIT(0) @@ -160,7 +162,7 @@ static irqreturn_t timer_interrupt(int irq, void *devid) * This runs just before the delay loop is calibrated, and * is used for delay calibration. */ -void __init time_init_deferred(void) +static void __init time_init_deferred(void) { struct resource *resource = NULL; struct clock_event_device *ce_dev = &hexagon_clockevent_dev; diff --git a/arch/hexagon/kernel/traps.c b/arch/hexagon/kernel/traps.c index 6447763ce5a9..75e062722d28 100644 --- a/arch/hexagon/kernel/traps.c +++ b/arch/hexagon/kernel/traps.c @@ -281,6 +281,7 @@ static void cache_error(struct pt_regs *regs) /* * General exception handler */ +void do_genex(struct pt_regs *regs); void do_genex(struct pt_regs *regs) { /* @@ -331,13 +332,7 @@ void do_genex(struct pt_regs *regs) } } -/* Indirect system call dispatch */ -long sys_syscall(void) -{ - printk(KERN_ERR "sys_syscall invoked!\n"); - return -ENOSYS; -} - +void do_trap0(struct pt_regs *regs); void do_trap0(struct pt_regs *regs) { syscall_fn syscall; @@ -415,6 +410,7 @@ void do_trap0(struct pt_regs *regs) /* * Machine check exception handler */ +void do_machcheck(struct pt_regs *regs); void do_machcheck(struct pt_regs *regs) { /* Halt and catch fire */ @@ -425,6 +421,7 @@ void do_machcheck(struct pt_regs *regs) * Treat this like the old 0xdb trap. */ +void do_debug_exception(struct pt_regs *regs); void do_debug_exception(struct pt_regs *regs) { regs->hvmer.vmest &= ~HVM_VMEST_CAUSE_MSK; diff --git a/arch/hexagon/kernel/vdso.c b/arch/hexagon/kernel/vdso.c index b70970ac809f..2e4872d62124 100644 --- a/arch/hexagon/kernel/vdso.c +++ b/arch/hexagon/kernel/vdso.c @@ -10,6 +10,7 @@ #include <linux/vmalloc.h> #include <linux/binfmts.h> +#include <asm/elf.h> #include <asm/vdso.h> static struct page *vdso_page; diff --git a/arch/hexagon/kernel/vm_events.c b/arch/hexagon/kernel/vm_events.c index 59ef72e4a4e5..2b881a89b206 100644 --- a/arch/hexagon/kernel/vm_events.c +++ b/arch/hexagon/kernel/vm_events.c @@ -73,13 +73,6 @@ void show_regs(struct pt_regs *regs) pt_psp(regs), pt_badva(regs), ints_enabled(regs)); } -void dummy_handler(struct pt_regs *regs) -{ - unsigned int elr = pt_elr(regs); - printk(KERN_ERR "Unimplemented handler; ELR=0x%08x\n", elr); -} - - void arch_do_IRQ(struct pt_regs *regs) { int irq = pt_cause(regs); diff --git a/arch/hexagon/mm/init.c b/arch/hexagon/mm/init.c index 146115c9de61..3458f39ca2ac 100644 --- a/arch/hexagon/mm/init.c +++ b/arch/hexagon/mm/init.c @@ -12,6 +12,7 @@ #include <linux/highmem.h> #include <asm/tlb.h> #include <asm/sections.h> +#include <asm/setup.h> #include <asm/vm_mmu.h> /* @@ -86,7 +87,7 @@ void sync_icache_dcache(pte_t pte) * In this mode, we only have one pg_data_t * structure: contig_mem_data. */ -void __init paging_init(void) +static void __init paging_init(void) { unsigned long max_zone_pfn[MAX_NR_ZONES] = {0, }; diff --git a/arch/hexagon/mm/uaccess.c b/arch/hexagon/mm/uaccess.c index 650bca92f0b7..3204e9ba6d6f 100644 --- a/arch/hexagon/mm/uaccess.c +++ b/arch/hexagon/mm/uaccess.c @@ -35,11 +35,3 @@ __kernel_size_t __clear_user_hexagon(void __user *dest, unsigned long count) return count; } - -unsigned long clear_user_hexagon(void __user *dest, unsigned long count) -{ - if (!access_ok(dest, count)) - return count; - else - return __clear_user_hexagon(dest, count); -} diff --git a/arch/hexagon/mm/vm_fault.c b/arch/hexagon/mm/vm_fault.c index 7295ea3f8cc8..3771fb453898 100644 --- a/arch/hexagon/mm/vm_fault.c +++ b/arch/hexagon/mm/vm_fault.c @@ -12,6 +12,7 @@ */ #include <asm/traps.h> +#include <asm/vm_fault.h> #include <linux/uaccess.h> #include <linux/mm.h> #include <linux/sched/signal.h> @@ -33,7 +34,7 @@ /* * Canonical page fault handler */ -void do_page_fault(unsigned long address, long cause, struct pt_regs *regs) +static void do_page_fault(unsigned long address, long cause, struct pt_regs *regs) { struct vm_area_struct *vma; struct mm_struct *mm = current->mm; diff --git a/arch/hexagon/mm/vm_tlb.c b/arch/hexagon/mm/vm_tlb.c index 53482f2a9ff9..8b6405e2234b 100644 --- a/arch/hexagon/mm/vm_tlb.c +++ b/arch/hexagon/mm/vm_tlb.c @@ -14,6 +14,7 @@ #include <linux/sched.h> #include <asm/page.h> #include <asm/hexagon_vm.h> +#include <asm/tlbflush.h> /* * Initial VM implementation has only one map active at a time, with diff --git a/arch/mips/Kbuild b/arch/mips/Kbuild index af2967bffb73..e2d623621a00 100644 --- a/arch/mips/Kbuild +++ b/arch/mips/Kbuild @@ -1,10 +1,4 @@ # SPDX-License-Identifier: GPL-2.0 -# Fail on warnings - also for files referenced in subdirs -# -Werror can be disabled for specific files using: -# CFLAGS_<file.o> := -Wno-error -ifeq ($(W),) -subdir-ccflags-y := -Werror -endif # platform specific definitions include $(srctree)/arch/mips/Kbuild.platforms diff --git a/arch/mips/boot/compressed/dbg.c b/arch/mips/boot/compressed/dbg.c index f6728a8fd1c3..2f1ac38fe1cc 100644 --- a/arch/mips/boot/compressed/dbg.c +++ b/ |