Merge branch 'fix/hda' into for-linus

[pandora-kernel.git] / arch / mn10300 / kernel / kprobes.c

diff --git a/arch/mn10300/kernel/kprobes.c b/arch/mn10300/kernel/kprobes.c
index dacafab..67e6389 100644 (file)
--- a/arch/mn10300/kernel/kprobes.c
+++ b/arch/mn10300/kernel/kprobes.c
@@ -31,13 +31,13 @@ const int kretprobe_blacklist_size = ARRAY_SIZE(kretprobe_blacklist);
 #define KPROBE_HIT_ACTIVE      0x00000001
 #define KPROBE_HIT_SS          0x00000002
 
-static struct kprobe *current_kprobe;
-static unsigned long current_kprobe_orig_pc;
-static unsigned long current_kprobe_next_pc;
-static int current_kprobe_ss_flags;
+static struct kprobe *cur_kprobe;
+static unsigned long cur_kprobe_orig_pc;
+static unsigned long cur_kprobe_next_pc;
+static int cur_kprobe_ss_flags;
 static unsigned long kprobe_status;
-static kprobe_opcode_t current_kprobe_ss_buf[MAX_INSN_SIZE + 2];
-static unsigned long current_kprobe_bp_addr;
+static kprobe_opcode_t cur_kprobe_ss_buf[MAX_INSN_SIZE + 2];
+static unsigned long cur_kprobe_bp_addr;
 
 DEFINE_PER_CPU(struct kprobe *, current_kprobe) = NULL;
 
@@ -399,26 +399,25 @@ void __kprobes prepare_singlestep(struct kprobe *p, struct pt_regs *regs)
 {
        unsigned long nextpc;
 
-       current_kprobe_orig_pc = regs->pc;
-       memcpy(current_kprobe_ss_buf, &p->ainsn.insn[0], MAX_INSN_SIZE);
-       regs->pc = (unsigned long) current_kprobe_ss_buf;
+       cur_kprobe_orig_pc = regs->pc;
+       memcpy(cur_kprobe_ss_buf, &p->ainsn.insn[0], MAX_INSN_SIZE);
+       regs->pc = (unsigned long) cur_kprobe_ss_buf;
 
-       nextpc = find_nextpc(regs, &current_kprobe_ss_flags);
-       if (current_kprobe_ss_flags & SINGLESTEP_PCREL)
-               current_kprobe_next_pc =
-                       current_kprobe_orig_pc + (nextpc - regs->pc);
+       nextpc = find_nextpc(regs, &cur_kprobe_ss_flags);
+       if (cur_kprobe_ss_flags & SINGLESTEP_PCREL)
+               cur_kprobe_next_pc = cur_kprobe_orig_pc + (nextpc - regs->pc);
        else
-               current_kprobe_next_pc = nextpc;
+               cur_kprobe_next_pc = nextpc;
 
        /* branching instructions need special handling */
-       if (current_kprobe_ss_flags & SINGLESTEP_BRANCH)
+       if (cur_kprobe_ss_flags & SINGLESTEP_BRANCH)
                nextpc = singlestep_branch_setup(regs);
 
-       current_kprobe_bp_addr = nextpc;
+       cur_kprobe_bp_addr = nextpc;
 
        *(u8 *) nextpc = BREAKPOINT_INSTRUCTION;
-       mn10300_dcache_flush_range2((unsigned) current_kprobe_ss_buf,
-                                   sizeof(current_kprobe_ss_buf));
+       mn10300_dcache_flush_range2((unsigned) cur_kprobe_ss_buf,
+                                   sizeof(cur_kprobe_ss_buf));
        mn10300_icache_inv();
 }
 
@@ -440,7 +439,7 @@ static inline int __kprobes kprobe_handler(struct pt_regs *regs)
                        disarm_kprobe(p, regs);
                        ret = 1;
                } else {
-                       p = current_kprobe;
+                       p = cur_kprobe;
                        if (p->break_handler && p->break_handler(p, regs))
                                goto ss_probe;
                }
@@ -464,7 +463,7 @@ static inline int __kprobes kprobe_handler(struct pt_regs *regs)
        }
 
        kprobe_status = KPROBE_HIT_ACTIVE;
-       current_kprobe = p;
+       cur_kprobe = p;
        if (p->pre_handler(p, regs)) {
                /* handler has already set things up, so skip ss setup */
                return 1;
@@ -491,8 +490,8 @@ no_kprobe:
 static void __kprobes resume_execution(struct kprobe *p, struct pt_regs *regs)
 {
        /* we may need to fixup regs/stack after singlestepping a call insn */
-       if (current_kprobe_ss_flags & SINGLESTEP_BRANCH) {
-               regs->pc = current_kprobe_orig_pc;
+       if (cur_kprobe_ss_flags & SINGLESTEP_BRANCH) {
+               regs->pc = cur_kprobe_orig_pc;
                switch (p->ainsn.insn[0]) {
                case 0xcd:      /* CALL (d16,PC) */
                        *(unsigned *) regs->sp = regs->mdr = regs->pc + 5;
@@ -523,8 +522,8 @@ static void __kprobes resume_execution(struct kprobe *p, struct pt_regs *regs)
                }
        }
 
-       regs->pc = current_kprobe_next_pc;
-       current_kprobe_bp_addr = 0;
+       regs->pc = cur_kprobe_next_pc;
+       cur_kprobe_bp_addr = 0;
 }
 
 static inline int __kprobes post_kprobe_handler(struct pt_regs *regs)
@@ -532,10 +531,10 @@ static inline int __kprobes post_kprobe_handler(struct pt_regs *regs)
        if (!kprobe_running())
                return 0;
 
-       if (current_kprobe->post_handler)
-               current_kprobe->post_handler(current_kprobe, regs, 0);
+       if (cur_kprobe->post_handler)
+               cur_kprobe->post_handler(cur_kprobe, regs, 0);
 
-       resume_execution(current_kprobe, regs);
+       resume_execution(cur_kprobe, regs);
        reset_current_kprobe();
        preempt_enable_no_resched();
        return 1;
@@ -545,12 +544,12 @@ static inline int __kprobes post_kprobe_handler(struct pt_regs *regs)
 static inline
 int __kprobes kprobe_fault_handler(struct pt_regs *regs, int trapnr)
 {
-       if (current_kprobe->fault_handler &&
-           current_kprobe->fault_handler(current_kprobe, regs, trapnr))
+       if (cur_kprobe->fault_handler &&
+           cur_kprobe->fault_handler(cur_kprobe, regs, trapnr))
                return 1;
 
        if (kprobe_status & KPROBE_HIT_SS) {
-               resume_execution(current_kprobe, regs);
+               resume_execution(cur_kprobe, regs);
                reset_current_kprobe();
                preempt_enable_no_resched();
        }
@@ -567,7 +566,7 @@ int __kprobes kprobe_exceptions_notify(struct notifier_block *self,
 
        switch (val) {
        case DIE_BREAKPOINT:
-               if (current_kprobe_bp_addr != args->regs->pc) {
+               if (cur_kprobe_bp_addr != args->regs->pc) {
                        if (kprobe_handler(args->regs))
                                return NOTIFY_STOP;
                } else {