diff options
Diffstat (limited to 'arch/arm')
-rw-r--r-- | arch/arm/common/rtctime.c | 1 | ||||
-rw-r--r-- | arch/arm/kernel/apm.c | 1 | ||||
-rw-r--r-- | arch/arm/kernel/process.c | 13 | ||||
-rw-r--r-- | arch/arm/kernel/ptrace.c | 37 | ||||
-rw-r--r-- | arch/arm/kernel/smp.c | 4 | ||||
-rw-r--r-- | arch/arm/kernel/traps.c | 4 | ||||
-rw-r--r-- | arch/arm/plat-omap/dma.c | 2 |
7 files changed, 23 insertions, 39 deletions
diff --git a/arch/arm/common/rtctime.c b/arch/arm/common/rtctime.c index 00f6278f42b..48b1e19b131 100644 --- a/arch/arm/common/rtctime.c +++ b/arch/arm/common/rtctime.c @@ -17,6 +17,7 @@ #include <linux/proc_fs.h> #include <linux/miscdevice.h> #include <linux/spinlock.h> +#include <linux/capability.h> #include <linux/device.h> #include <linux/mutex.h> diff --git a/arch/arm/kernel/apm.c b/arch/arm/kernel/apm.c index b9df1b782bb..766b6c05c6d 100644 --- a/arch/arm/kernel/apm.c +++ b/arch/arm/kernel/apm.c @@ -18,6 +18,7 @@ #include <linux/proc_fs.h> #include <linux/miscdevice.h> #include <linux/apm_bios.h> +#include <linux/capability.h> #include <linux/sched.h> #include <linux/pm.h> #include <linux/device.h> diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c index 54a21bdcba5..4b4e4cf79c8 100644 --- a/arch/arm/kernel/process.c +++ b/arch/arm/kernel/process.c @@ -342,10 +342,10 @@ void flush_thread(void) void release_thread(struct task_struct *dead_task) { #if defined(CONFIG_VFP) - vfp_release_thread(&dead_task->thread_info->vfpstate); + vfp_release_thread(&task_thread_info(dead_task)->vfpstate); #endif #if defined(CONFIG_IWMMXT) - iwmmxt_task_release(dead_task->thread_info); + iwmmxt_task_release(task_thread_info(dead_task)); #endif } @@ -355,10 +355,9 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long stack_start, unsigned long stk_sz, struct task_struct *p, struct pt_regs *regs) { - struct thread_info *thread = p->thread_info; - struct pt_regs *childregs; + struct thread_info *thread = task_thread_info(p); + struct pt_regs *childregs = task_pt_regs(p); - childregs = (void *)thread + THREAD_START_SP - sizeof(*regs); *childregs = *regs; childregs->ARM_r0 = 0; childregs->ARM_sp = stack_start; @@ -460,8 +459,8 @@ unsigned long get_wchan(struct task_struct *p) if (!p || p == current || p->state == TASK_RUNNING) return 0; - stack_start = (unsigned long)(p->thread_info + 1); - stack_end = ((unsigned long)p->thread_info) + THREAD_SIZE; + stack_start = (unsigned long)end_of_stack(p); + stack_end = (unsigned long)task_stack_page(p) + THREAD_SIZE; fp = thread_saved_fp(p); do { diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c index 2b84f78d7b0..e591f72bcde 100644 --- a/arch/arm/kernel/ptrace.c +++ b/arch/arm/kernel/ptrace.c @@ -55,23 +55,6 @@ #endif /* - * Get the address of the live pt_regs for the specified task. - * These are saved onto the top kernel stack when the process - * is not running. - * - * Note: if a user thread is execve'd from kernel space, the - * kernel stack will not be empty on entry to the kernel, so - * ptracing these tasks will fail. - */ -static inline struct pt_regs * -get_user_regs(struct task_struct *task) -{ - return (struct pt_regs *) - ((unsigned long)task->thread_info + THREAD_SIZE - - 8 - sizeof(struct pt_regs)); -} - -/* * this routine will get a word off of the processes privileged stack. * the offset is how far from the base addr as stored in the THREAD. * this routine assumes that all the privileged stacks are in our @@ -79,7 +62,7 @@ get_user_regs(struct task_struct *task) */ static inline long get_user_reg(struct task_struct *task, int offset) { - return get_user_regs(task)->uregs[offset]; + return task_pt_regs(task)->uregs[offset]; } /* @@ -91,7 +74,7 @@ static inline long get_user_reg(struct task_struct *task, int offset) static inline int put_user_reg(struct task_struct *task, int offset, long data) { - struct pt_regs newregs, *regs = get_user_regs(task); + struct pt_regs newregs, *regs = task_pt_regs(task); int ret = -EINVAL; newregs = *regs; @@ -421,7 +404,7 @@ void ptrace_set_bpt(struct task_struct *child) u32 insn; int res; - regs = get_user_regs(child); + regs = task_pt_regs(child); pc = instruction_pointer(regs); if (thumb_mode(regs)) { @@ -572,7 +555,7 @@ static int ptrace_write_user(struct task_struct *tsk, unsigned long off, */ static int ptrace_getregs(struct task_struct *tsk, void __user *uregs) { - struct pt_regs *regs = get_user_regs(tsk); + struct pt_regs *regs = task_pt_regs(tsk); return copy_to_user(uregs, regs, sizeof(struct pt_regs)) ? -EFAULT : 0; } @@ -587,7 +570,7 @@ static int ptrace_setregs(struct task_struct *tsk, void __user *uregs) ret = -EFAULT; if (copy_from_user(&newregs, uregs, sizeof(struct pt_regs)) == 0) { - struct pt_regs *regs = get_user_regs(tsk); + struct pt_regs *regs = task_pt_regs(tsk); ret = -EINVAL; if (valid_user_regs(&newregs)) { @@ -604,7 +587,7 @@ static int ptrace_setregs(struct task_struct *tsk, void __user *uregs) */ static int ptrace_getfpregs(struct task_struct *tsk, void __user *ufp) { - return copy_to_user(ufp, &tsk->thread_info->fpstate, + return copy_to_user(ufp, &task_thread_info(tsk)->fpstate, sizeof(struct user_fp)) ? -EFAULT : 0; } @@ -613,7 +596,7 @@ static int ptrace_getfpregs(struct task_struct *tsk, void __user *ufp) */ static int ptrace_setfpregs(struct task_struct *tsk, void __user *ufp) { - struct thread_info *thread = tsk->thread_info; + struct thread_info *thread = task_thread_info(tsk); thread->used_cp[1] = thread->used_cp[2] = 1; return copy_from_user(&thread->fpstate, ufp, sizeof(struct user_fp)) ? -EFAULT : 0; @@ -626,7 +609,7 @@ static int ptrace_setfpregs(struct task_struct *tsk, void __user *ufp) */ static int ptrace_getwmmxregs(struct task_struct *tsk, void __user *ufp) { - struct thread_info *thread = tsk->thread_info; + struct thread_info *thread = task_thread_info(tsk); void *ptr = &thread->fpstate; if (!test_ti_thread_flag(thread, TIF_USING_IWMMXT)) @@ -643,7 +626,7 @@ static int ptrace_getwmmxregs(struct task_struct *tsk, void __user *ufp) */ static int ptrace_setwmmxregs(struct task_struct *tsk, void __user *ufp) { - struct thread_info *thread = tsk->thread_info; + struct thread_info *thread = task_thread_info(tsk); void *ptr = &thread->fpstate; if (!test_ti_thread_flag(thread, TIF_USING_IWMMXT)) @@ -779,7 +762,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) #endif case PTRACE_GET_THREAD_AREA: - ret = put_user(child->thread_info->tp_value, + ret = put_user(task_thread_info(child)->tp_value, (unsigned long __user *) data); break; diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c index 373c0959bc2..7338948bd7d 100644 --- a/arch/arm/kernel/smp.c +++ b/arch/arm/kernel/smp.c @@ -114,7 +114,7 @@ int __cpuinit __cpu_up(unsigned int cpu) * We need to tell the secondary core where to find * its stack and the page tables. */ - secondary_data.stack = (void *)idle->thread_info + THREAD_START_SP; + secondary_data.stack = task_stack_page(idle) + THREAD_START_SP; secondary_data.pgdir = virt_to_phys(pgd); wmb(); @@ -245,7 +245,7 @@ void __cpuexit cpu_die(void) __asm__("mov sp, %0\n" " b secondary_start_kernel" : - : "r" ((void *)current->thread_info + THREAD_SIZE - 8)); + : "r" (task_stack_page(current) + THREAD_SIZE - 8)); } #endif /* CONFIG_HOTPLUG_CPU */ diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c index c9fe6f5f7ee..93cfd3ffcc7 100644 --- a/arch/arm/kernel/traps.c +++ b/arch/arm/kernel/traps.c @@ -164,7 +164,7 @@ static void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk) } else if (verify_stack(fp)) { printk("invalid frame pointer 0x%08x", fp); ok = 0; - } else if (fp < (unsigned long)(tsk->thread_info + 1)) + } else if (fp < (unsigned long)end_of_stack(tsk)) printk("frame pointer underflow"); printk("\n"); @@ -210,7 +210,7 @@ static void __die(const char *str, int err, struct thread_info *thread, struct p if (!user_mode(regs) || in_interrupt()) { dump_mem("Stack: ", regs->ARM_sp, - THREAD_SIZE + (unsigned long)tsk->thread_info); + THREAD_SIZE + (unsigned long)task_stack_page(tsk)); dump_backtrace(regs, tsk); dump_instr(regs); } diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c index f5cc21ad095..a4e5ac77f6d 100644 --- a/arch/arm/plat-omap/dma.c +++ b/arch/arm/plat-omap/dma.c @@ -64,7 +64,7 @@ static int dma_chan_count; static spinlock_t dma_chan_lock; static struct omap_dma_lch dma_chan[OMAP_LOGICAL_DMA_CH_COUNT]; -const static u8 omap1_dma_irq[OMAP_LOGICAL_DMA_CH_COUNT] = { +static const u8 omap1_dma_irq[OMAP_LOGICAL_DMA_CH_COUNT] = { INT_DMA_CH0_6, INT_DMA_CH1_7, INT_DMA_CH2_8, INT_DMA_CH3, INT_DMA_CH4, INT_DMA_CH5, INT_1610_DMA_CH6, INT_1610_DMA_CH7, INT_1610_DMA_CH8, INT_1610_DMA_CH9, INT_1610_DMA_CH10, |