[PATCHv2 50/50] kernel: Rename show_stack_loglvl() => show_stack()

From: Dmitry Safonov
Date: Mon Mar 16 2020 - 10:43:33 EST

Now the last users of show_stack() got converted to use an explicit log
level, show_stack_loglvl() can drop it's redundant suffix and become
once again well known show_stack().

Signed-off-by: Dmitry Safonov <dima@xxxxxxxxxx>
---
arch/alpha/kernel/traps.c | 8 +-------
arch/arc/kernel/stacktrace.c | 8 +-------
arch/arm/kernel/traps.c | 8 +-------
arch/arm64/kernel/traps.c | 8 +-------
arch/c6x/kernel/traps.c | 7 +------
arch/csky/kernel/dumpstack.c | 7 +------
arch/csky/kernel/ptrace.c | 4 ++--
arch/h8300/kernel/traps.c | 8 +-------
arch/hexagon/kernel/traps.c | 8 +-------
arch/ia64/kernel/mca.c | 2 +-
arch/ia64/kernel/process.c | 11 ++---------
arch/m68k/kernel/traps.c | 11 +++--------
arch/microblaze/kernel/traps.c | 8 +-------
arch/mips/kernel/traps.c | 8 +-------
arch/nds32/kernel/traps.c | 8 +-------
arch/nios2/kernel/traps.c | 12 +++---------
arch/openrisc/kernel/traps.c | 10 ++--------
arch/parisc/kernel/traps.c | 8 +-------
arch/powerpc/kernel/process.c | 11 +++--------
arch/powerpc/kernel/stacktrace.c | 2 +-
arch/riscv/kernel/stacktrace.c | 8 +-------
arch/s390/kernel/dumpstack.c | 9 ++-------
arch/sh/kernel/dumpstack.c | 8 +-------
arch/sh/kernel/process_64.c | 3 +--
arch/sparc/kernel/process_32.c | 11 ++---------
arch/sparc/kernel/process_64.c | 2 +-
arch/um/drivers/mconsole_kern.c | 2 +-
arch/um/kernel/sysrq.c | 7 +------
arch/unicore32/kernel/traps.c | 7 +------
arch/x86/kernel/amd_gart_64.c | 2 +-
arch/x86/kernel/dumpstack.c | 7 +------
arch/xtensa/kernel/traps.c | 10 ++--------
drivers/base/power/main.c | 2 +-
drivers/tty/sysrq.c | 2 +-
include/linux/sched/debug.h | 5 ++---
kernel/debug/kdb/kdb_bt.c | 2 +-
kernel/locking/rtmutex-debug.c | 2 +-
kernel/sched/core.c | 2 +-
lib/dump_stack.c | 2 +-
39 files changed, 52 insertions(+), 198 deletions(-)

diff --git a/arch/alpha/kernel/traps.c b/arch/alpha/kernel/traps.c
index 2402f1777f54..8383ccfaccdc 100644
--- a/arch/alpha/kernel/traps.c
+++ b/arch/alpha/kernel/traps.c
@@ -144,8 +144,7 @@ dik_show_trace(unsigned long *sp, const char *loglvl)

static int kstack_depth_to_print = 24;

-void show_stack_loglvl(struct task_struct *task, unsigned long *sp,
- const char *loglvl)
+void show_stack(struct task_struct *task, unsigned long *sp, const char *loglvl)
{
unsigned long *stack;
int i;
@@ -174,11 +173,6 @@ void show_stack_loglvl(struct task_struct *task, unsigned long *sp,
dik_show_trace(sp, loglvl);
}

-void show_stack(struct task_struct *task, unsigned long *sp)
-{
- show_stack_loglvl(task, sp, KERN_DEFAULT);
-}
-
void
die_if_kernel(char * str, struct pt_regs *regs, long err, unsigned long *r9_15)
{
diff --git a/arch/arc/kernel/stacktrace.c b/arch/arc/kernel/stacktrace.c
index 24f9cd8a12c9..feba91c9d969 100644
--- a/arch/arc/kernel/stacktrace.c
+++ b/arch/arc/kernel/stacktrace.c
@@ -228,17 +228,11 @@ noinline void show_stacktrace(struct task_struct *tsk, struct pt_regs *regs,
EXPORT_SYMBOL(show_stacktrace);

/* Expected by sched Code */
-void show_stack_loglvl(struct task_struct *tsk, unsigned long *sp,
- const char *loglvl)
+void show_stack(struct task_struct *tsk, unsigned long *sp, const char *loglvl)
{
show_stacktrace(tsk, NULL, loglvl);
}

-void show_stack(struct task_struct *tsk, unsigned long *sp)
-{
- show_stack_loglvl(tsk, sp, KERN_DEFAULT);
-}
-
/* Another API expected by schedular, shows up in "ps" as Wait Channel
* Of course just returning schedule( ) would be pointless so unwind until
* the function is not in schedular code
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index 00455b5bbf8a..09faa0efe47b 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -247,18 +247,12 @@ static void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk,
}
#endif

-void show_stack_loglvl(struct task_struct *tsk, unsigned long *sp,
- const char *loglvl)
+void show_stack(struct task_struct *tsk, unsigned long *sp, const char *loglvl)
{
dump_backtrace(NULL, tsk, loglvl);
barrier();
}

-void show_stack(struct task_struct *tsk, unsigned long *sp)
-{
- show_stack_loglvl(tsk, sp, KERN_DEFAULT);
-}
-
#ifdef CONFIG_PREEMPT
#define S_PREEMPT " PREEMPT"
#elif defined(CONFIG_PREEMPT_RT)
diff --git a/arch/arm64/kernel/traps.c b/arch/arm64/kernel/traps.c
index 516e92332fd0..4857e9d60359 100644
--- a/arch/arm64/kernel/traps.c
+++ b/arch/arm64/kernel/traps.c
@@ -137,18 +137,12 @@ void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk,
put_task_stack(tsk);
}

-void show_stack_loglvl(struct task_struct *tsk, unsigned long *sp,
- const char *loglvl)
+void show_stack(struct task_struct *tsk, unsigned long *sp, const char *loglvl)
{
dump_backtrace(NULL, tsk, loglvl);
barrier();
}

-void show_stack(struct task_struct *tsk, unsigned long *sp)
-{
- show_stack_loglvl(tsk, sp, KERN_DEFAULT);
-}
-
#ifdef CONFIG_PREEMPT
#define S_PREEMPT " PREEMPT"
#elif defined(CONFIG_PREEMPT_RT)
diff --git a/arch/c6x/kernel/traps.c b/arch/c6x/kernel/traps.c
index 4afbf48f1ce0..2b9121c755be 100644
--- a/arch/c6x/kernel/traps.c
+++ b/arch/c6x/kernel/traps.c
@@ -374,7 +374,7 @@ static void show_trace(unsigned long *stack, unsigned long *endstack,
printk("%s\n", loglvl);
}

-void show_stack_loglvl(struct task_struct *task, unsigned long *stack,
+void show_stack(struct task_struct *task, unsigned long *stack,
const char *loglvl)
{
unsigned long *p, *endstack;
@@ -403,11 +403,6 @@ void show_stack_loglvl(struct task_struct *task, unsigned long *stack,
show_trace(stack, endstack, loglvl);
}

-void show_stack(struct task_struct *task, unsigned long *stack)
-{
- show_stack_loglvl(task, stack, KERN_DEBUG);
-}
-
int is_valid_bugaddr(unsigned long addr)
{
return __kernel_text_address(addr);
diff --git a/arch/csky/kernel/dumpstack.c b/arch/csky/kernel/dumpstack.c
index c500837390d3..b9660b1944a1 100644
--- a/arch/csky/kernel/dumpstack.c
+++ b/arch/csky/kernel/dumpstack.c
@@ -32,7 +32,7 @@ static void show_trace(unsigned long *stack, const char *loglvl)
pr_cont("\n");
}

-void show_stack_loglvl(struct task_struct *task, unsigned long *stack,
+void show_stack(struct task_struct *task, unsigned long *stack,
const char *loglvl)
{
if (!stack) {
@@ -48,8 +48,3 @@ void show_stack_loglvl(struct task_struct *task, unsigned long *stack,

show_trace(stack, loglvl);
}
-
-void show_stack(struct task_struct *task, unsigned long *stack)
-{
- show_stack_loglvl(task, stack, KERN_INFO);
-}
diff --git a/arch/csky/kernel/ptrace.c b/arch/csky/kernel/ptrace.c
index 313623a19ecb..7fa7202e025f 100644
--- a/arch/csky/kernel/ptrace.c
+++ b/arch/csky/kernel/ptrace.c
@@ -235,7 +235,7 @@ asmlinkage void syscall_trace_exit(struct pt_regs *regs)
trace_sys_exit(regs, syscall_get_return_value(current, regs));
}

-extern void show_stack(struct task_struct *task, unsigned long *stack);
+extern void show_stack(struct task_struct *task, unsigned long *stack, const char *loglvl);
void show_regs(struct pt_regs *fp)
{
unsigned long *sp;
@@ -311,6 +311,6 @@ void show_regs(struct pt_regs *fp)
}
pr_cont("\n");

- show_stack(NULL, (unsigned long *)fp->regs[4]);
+ show_stack(NULL, (unsigned long *)fp->regs[4], KERN_INFO);
return;
}
diff --git a/arch/h8300/kernel/traps.c b/arch/h8300/kernel/traps.c
index 6362446563d6..5d8b969cd8f3 100644
--- a/arch/h8300/kernel/traps.c
+++ b/arch/h8300/kernel/traps.c
@@ -115,8 +115,7 @@ void die(const char *str, struct pt_regs *fp, unsigned long err)

static int kstack_depth_to_print = 24;

-void show_stack_loglvl(struct task_struct *task, unsigned long *esp,
- const char *loglvl)
+void show_stack(struct task_struct *task, unsigned long *esp, const char *loglvl)
{
unsigned long *stack, addr;
int i;
@@ -158,8 +157,3 @@ void show_stack_loglvl(struct task_struct *task, unsigned long *esp,
}
printk("%s\n", loglvl);
}
-
-void show_stack(struct task_struct *task, unsigned long *esp)
-{
- show_stack_loglvl(task, esp, KERN_INFO);
-}
diff --git a/arch/hexagon/kernel/traps.c b/arch/hexagon/kernel/traps.c
index a8a3a210d781..904134b37232 100644
--- a/arch/hexagon/kernel/traps.c
+++ b/arch/hexagon/kernel/traps.c
@@ -175,18 +175,12 @@ static void do_show_stack(struct task_struct *task, unsigned long *fp,
}
}

-void show_stack_loglvl(struct task_struct *task, unsigned long *fp,
- const char *loglvl)
+void show_stack(struct task_struct *task, unsigned long *fp, const char *loglvl)
{
/* Saved link reg is one word above FP */
do_show_stack(task, fp, 0, loglvl);
}

-void show_stack(struct task_struct *task, unsigned long *fp)
-{
- show_stack_loglvl(task, fp, 0, KERN_INFO);
-}
-
int die(const char *str, struct pt_regs *regs, long err)
{
static struct {
diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c
index bf2cb9294795..1d4b8f619fd2 100644
--- a/arch/ia64/kernel/mca.c
+++ b/arch/ia64/kernel/mca.c
@@ -1630,7 +1630,7 @@ default_monarch_init_process(struct notifier_block *self, unsigned long val, voi
if (read_trylock(&tasklist_lock)) {
do_each_thread (g, t) {
printk("\nBacktrace of pid %d (%s)\n", t->pid, t->comm);
- show_stack(t, NULL);
+ show_stack(t, NULL, KERN_DEFAULT);
} while_each_thread (g, t);
read_unlock(&tasklist_lock);
}
diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c
index b0eeb19bdd8d..aaabf515cef5 100644
--- a/arch/ia64/kernel/process.c
+++ b/arch/ia64/kernel/process.c
@@ -85,8 +85,7 @@ ia64_do_show_stack (struct unw_frame_info *info, void *arg)
}

void
-show_stack_loglvl (struct task_struct *task, unsigned long *sp,
- const char *loglvl)
+show_stack (struct task_struct *task, unsigned long *sp, const char *loglvl)
{
if (!task)
unw_init_running(ia64_do_show_stack, (void *)loglvl);
@@ -98,12 +97,6 @@ show_stack_loglvl (struct task_struct *task, unsigned long *sp,
}
}

-void
-show_stack (struct task_struct *task, unsigned long *sp)
-{
- show_stack_loglvl(task, sp, KERN_DEFAULT);
-}
-
void
show_regs (struct pt_regs *regs)
{
@@ -158,7 +151,7 @@ show_regs (struct pt_regs *regs)
((i == sof - 1) || (i % 3) == 2) ? "\n" : " ");
}
} else
- show_stack(NULL, NULL);
+ show_stack(NULL, NULL, KERN_DEFAULT);
}

/* local support for deprecated console_print */
diff --git a/arch/m68k/kernel/traps.c b/arch/m68k/kernel/traps.c
index ffcc5ec4fac3..df6fc782754f 100644
--- a/arch/m68k/kernel/traps.c
+++ b/arch/m68k/kernel/traps.c
@@ -916,7 +916,7 @@ void show_registers(struct pt_regs *regs)
default:
pr_cont("\n");
}
- show_stack(NULL, (unsigned long *)addr);
+ show_stack(NULL, (unsigned long *)addr, KERN_INFO);

pr_info("Code:");
set_fs(KERNEL_DS);
@@ -935,8 +935,8 @@ void show_registers(struct pt_regs *regs)
pr_cont("\n");
}

-void show_stack_loglvl(struct task_struct *task, unsigned long *stack,
- const char *loglvl)
+void show_stack(struct task_struct *task, unsigned long *stack,
+ const char *loglvl)
{
unsigned long *p;
unsigned long *endstack;
@@ -963,11 +963,6 @@ void show_stack_loglvl(struct task_struct *task, unsigned long *stack,
show_trace(stack, loglvl);
}

-void show_stack(struct task_struct *task, unsigned long *stack)
-{
- show_stack_loglvl(task, stack, KERN_INFO);
-}
-
/*
* The vector number returned in the frame pointer may also contain
* the "fs" (Fault Status) bits on ColdFire. These are in the bottom
diff --git a/arch/microblaze/kernel/traps.c b/arch/microblaze/kernel/traps.c
index 149ae534937e..94b6fe93147d 100644
--- a/arch/microblaze/kernel/traps.c
+++ b/arch/microblaze/kernel/traps.c
@@ -31,8 +31,7 @@ static int __init kstack_setup(char *s)
}
__setup("kstack=", kstack_setup);

-void show_stack_loglvl(struct task_struct *task, unsigned long *sp,
- const char *loglvl)
+void show_stack(struct task_struct *task, unsigned long *sp, const char *loglvl)
{
unsigned long words_to_show;
u32 fp = (u32) sp;
@@ -77,8 +76,3 @@ void show_stack_loglvl(struct task_struct *task, unsigned long *sp,

debug_show_held_locks(task);
}
-
-void show_stack(struct task_struct *task, unsigned long *sp)
-{
- show_stack_loglvl(task, sp, KERN_INFO);
-}
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index 077aabbd6b9f..4522902228b5 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -196,8 +196,7 @@ static void show_stacktrace(struct task_struct *task,
show_backtrace(task, regs, loglvl);
}

-void show_stack_loglvl(struct task_struct *task, unsigned long *sp,
- const char *loglvl)
+void show_stack(struct task_struct *task, unsigned long *sp, const char *loglvl)
{
struct pt_regs regs;
mm_segment_t old_fs = get_fs();
@@ -225,11 +224,6 @@ void show_stack_loglvl(struct task_struct *task, unsigned long *sp,
set_fs(old_fs);
}

-void show_stack(struct task_struct *task, unsigned long *sp)
-{
- show_stack_loglvl(task, sp, KERN_DEFAULT)
-}
-
static void show_code(unsigned int __user *pc)
{
long i;
diff --git a/arch/nds32/kernel/traps.c b/arch/nds32/kernel/traps.c
index 90f12582c218..6a9772ba7392 100644
--- a/arch/nds32/kernel/traps.c
+++ b/arch/nds32/kernel/traps.c
@@ -135,8 +135,7 @@ static void __dump(struct task_struct *tsk, unsigned long *base_reg,
printk("%s\n", loglvl);
}

-void show_stack_loglvl(struct task_struct *tsk, unsigned long *sp,
- const char *loglvl)
+void show_stack(struct task_struct *tsk, unsigned long *sp, const char *loglvl)
{
unsigned long *base_reg;

@@ -157,11 +156,6 @@ void show_stack_loglvl(struct task_struct *tsk, unsigned long *sp,
barrier();
}

-void show_stack(struct task_struct *tsk, unsigned long *sp)
-{
- show_stack_loglvl(tsk, sp, KERN_EMERG);
-}
-
DEFINE_SPINLOCK(die_lock);

/*
diff --git a/arch/nios2/kernel/traps.c b/arch/nios2/kernel/traps.c
index 08071caa9b36..b172da4eb1a9 100644
--- a/arch/nios2/kernel/traps.c
+++ b/arch/nios2/kernel/traps.c
@@ -52,14 +52,13 @@ void _exception(int signo, struct pt_regs *regs, int code, unsigned long addr)
}

/*
- * The show_stack(), show_stack_loglvl() are external API
- * which we do not use ourselves.
+ * The show_stack() is external API which we do not use ourselves.
*/

int kstack_depth_to_print = 48;

-void show_stack_loglvl(struct task_struct *task, unsigned long *stack,
- const char *loglvl)
+void show_stack(struct task_struct *task, unsigned long *stack,
+ const char *loglvl)
{
unsigned long *endstack, addr;
int i;
@@ -106,11 +105,6 @@ void show_stack_loglvl(struct task_struct *task, unsigned long *stack,
printk("%s\n", loglvl);
}

-void show_stack(struct task_struct *task, unsigned long *stack)
-{
- show_stack_loglvl(task, stack, KERN_EMERG);
-}
-
void __init trap_init(void)
{
/* Nothing to do here */
diff --git a/arch/openrisc/kernel/traps.c b/arch/openrisc/kernel/traps.c
index 9d5a85dd1992..97163815bbc5 100644
--- a/arch/openrisc/kernel/traps.c
+++ b/arch/openrisc/kernel/traps.c
@@ -48,8 +48,7 @@ void print_trace(void *data, unsigned long addr, int reliable)
}

/* displays a short stack trace */
-void show_stack_loglvl(struct task_struct *task, unsigned long *esp,
- const char *loglvl)
+void show_stack(struct task_struct *task, unsigned long *esp, const char *loglvl)
{
if (esp == NULL)
esp = (unsigned long *)&esp;
@@ -58,11 +57,6 @@ void show_stack_loglvl(struct task_struct *task, unsigned long *esp,
unwind_stack((void *)loglvl, esp, print_trace);
}

-void show_stack(struct task_struct *task, unsigned long *esp)
-{
- show_stack_loglvl(task, esp, KERN_EMERG);
-}
-
void show_trace_task(struct task_struct *tsk)
{
/*
@@ -111,7 +105,7 @@ void show_registers(struct pt_regs *regs)
if (in_kernel) {

printk("\nStack: ");
- show_stack(NULL, (unsigned long *)esp);
+ show_stack(NULL, (unsigned long *)esp, KERN_EMERG);

printk("\nCode: ");
if (regs->pc < PAGE_OFFSET)
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index c2411de3730f..0a89899f154a 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -198,17 +198,11 @@ static void parisc_show_stack(struct task_struct *task,
do_show_stack(&info, loglvl);
}

-void show_stack_loglvl(struct task_struct *t, unsigned long *sp,
- const char *loglvl)
+void show_stack(struct task_struct *t, unsigned long *sp, const char *loglvl)
{
parisc_show_stack(t, NULL, loglvl);
}

-void show_stack(struct task_struct *t, unsigned long *sp)
-{
- show_stack_loglvl(t, sp, KERN_CRIT)
-}
-
int is_valid_bugaddr(unsigned long iaoq)
{
return 1;
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index c1ab7f613da4..c4cf9274b2b3 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -1437,7 +1437,7 @@ void show_regs(struct pt_regs * regs)
printk("NIP ["REG"] %pS\n", regs->nip, (void *)regs->nip);
printk("LR ["REG"] %pS\n", regs->link, (void *)regs->link);
#endif
- show_stack(current, (unsigned long *) regs->gpr[1]);
+ show_stack(current, (unsigned long *) regs->gpr[1], KERN_DEFAULT);
if (!user_mode(regs))
show_instructions(regs);
}
@@ -2034,8 +2034,8 @@ unsigned long get_wchan(struct task_struct *p)

static int kstack_depth_to_print = CONFIG_PRINT_STACK_DEPTH;

-void show_stack_loglvl(struct task_struct *tsk, unsigned long *stack,
- const char *loglvl)
+void show_stack(struct task_struct *tsk, unsigned long *stack,
+ const char *loglvl)
{
unsigned long sp, ip, lr, newsp;
int count = 0;
@@ -2104,11 +2104,6 @@ void show_stack_loglvl(struct task_struct *tsk, unsigned long *stack,
put_task_stack(tsk);
}

-void show_stack(struct task_struct *tsk, unsigned long *stack)
-{
- show_stack_loglvl(tsk, stack, KERN_DEFAULT);
-}
-
#ifdef CONFIG_PPC64
/* Called with hard IRQs off */
void notrace __ppc64_runlatch_on(void)
diff --git a/arch/powerpc/kernel/stacktrace.c b/arch/powerpc/kernel/stacktrace.c
index e2a46cfed5fd..5efef8f35ad3 100644
--- a/arch/powerpc/kernel/stacktrace.c
+++ b/arch/powerpc/kernel/stacktrace.c
@@ -260,7 +260,7 @@ static void raise_backtrace_ipi(cpumask_t *mask)
pr_cont(" current pointer corrupt? (%px)\n", p->__current);

pr_warn("Back trace of paca->saved_r1 (0x%016llx) (possibly stale):\n", p->saved_r1);
- show_stack(p->__current, (unsigned long *)p->saved_r1);
+ show_stack(p->__current, (unsigned long *)p->saved_r1, KERN_WARNING);
}
}

diff --git a/arch/riscv/kernel/stacktrace.c b/arch/riscv/kernel/stacktrace.c
index 5b414ba9848b..7d60aa44598e 100644
--- a/arch/riscv/kernel/stacktrace.c
+++ b/arch/riscv/kernel/stacktrace.c
@@ -104,18 +104,12 @@ static bool print_trace_address(unsigned long pc, void *arg)
return false;
}

-void show_stack_loglvl(struct task_struct *task, unsigned long *sp,
- const char *loglvl)
+void show_stack(struct task_struct *task, unsigned long *sp, const char *loglvl)
{
pr_cont("Call Trace:\n");
walk_stackframe(task, NULL, print_trace_address, (void *)loglvl);
}

-void show_stack(struct task_struct *task, unsigned long *sp)
-{
- show_stack_loglvl(task, sp, KERN_DEFAULT);
-}
-
static bool save_wchan(unsigned long pc, void *arg)
{
if (!in_sched_functions(pc)) {
diff --git a/arch/s390/kernel/dumpstack.c b/arch/s390/kernel/dumpstack.c
index 887a054919fc..0dc4b258b98d 100644
--- a/arch/s390/kernel/dumpstack.c
+++ b/arch/s390/kernel/dumpstack.c
@@ -126,7 +126,7 @@ int get_stack_info(unsigned long sp, struct task_struct *task,
return -EINVAL;
}

-void show_stack_loglvl(struct task_struct *task, unsigned long *stack,
+void show_stack(struct task_struct *task, unsigned long *stack,
const char *loglvl)
{
struct unwind_state state;
@@ -139,11 +139,6 @@ void show_stack_loglvl(struct task_struct *task, unsigned long *stack,
debug_show_held_locks(task ? : current);
}

-void show_stack(struct task_struct *task, unsigned long *stack)
-{
- show_stack_loglvl(task, stack, KERN_DEFAULT);
-}
-
static void show_last_breaking_event(struct pt_regs *regs)
{
printk("Last Breaking-Event-Address:\n");
@@ -181,7 +176,7 @@ void show_regs(struct pt_regs *regs)
show_registers(regs);
/* Show stack backtrace if pt_regs is from kernel mode */
if (!user_mode(regs))
- show_stack(NULL, (unsigned long *) regs->gprs[15]);
+ show_stack(NULL, (unsigned long *) regs->gprs[15], KERN_DEFAULT);
show_last_breaking_event(regs);
}

diff --git a/arch/sh/kernel/dumpstack.c b/arch/sh/kernel/dumpstack.c
index cc51e9d74667..a13c045804ed 100644
--- a/arch/sh/kernel/dumpstack.c
+++ b/arch/sh/kernel/dumpstack.c
@@ -144,8 +144,7 @@ void show_trace(struct task_struct *tsk, unsigned long *sp,
debug_show_held_locks(tsk);
}

-void show_stack_loglvl(struct task_struct *tsk, unsigned long *sp,
- const char *loglvl)
+void show_stack(struct task_struct *tsk, unsigned long *sp, const char *loglvl)
{
unsigned long stack;

@@ -161,8 +160,3 @@ void show_stack_loglvl(struct task_struct *tsk, unsigned long *sp,
(unsigned long)task_stack_page(tsk));
show_trace(tsk, sp, NULL, loglvl);
}
-
-void show_stack(struct task_struct *task, unsigned long *sp)
-{
- show_stack_loglvl(task, sp, KERN_DEFAULT);
-}
diff --git a/arch/sh/kernel/process_64.c b/arch/sh/kernel/process_64.c
index c2844a2e18cd..4c2144225c8e 100644
--- a/arch/sh/kernel/process_64.c
+++ b/arch/sh/kernel/process_64.c
@@ -275,13 +275,12 @@ void show_regs(struct pt_regs *regs)
* If we're in kernel mode, dump the stack too..
*/
if (!user_mode(regs)) {
- void show_stack(struct task_struct *tsk, unsigned long *sp);
unsigned long sp = regs->regs[15] & 0xffffffff;
struct task_struct *tsk = get_current();

tsk->thread.kregs = regs;

- show_stack(tsk, (unsigned long *)sp);
+ show_stack(tsk, (unsigned long *)sp, KERN_DEFAULT);
}
}

diff --git a/arch/sparc/kernel/process_32.c b/arch/sparc/kernel/process_32.c
index 0b07de5618e5..65c0d5207b0c 100644
--- a/arch/sparc/kernel/process_32.c
+++ b/arch/sparc/kernel/process_32.c
@@ -145,12 +145,10 @@ void show_regs(struct pt_regs *r)
}

/*
- * The show_stack(), show_stack_loglvl() are external APIs which
- * we do not use ourselves.
+ * The show_stack() is external API which we do not use ourselves.
* The oops is printed in die_if_kernel.
*/
-void show_stack_loglvl(struct task_struct *tsk, unsigned long *_ksp,
- const char *loglvl)
+void show_stack(struct task_struct *tsk, unsigned long *_ksp, const char *loglvl)
{
unsigned long pc, fp;
unsigned long task_base;
@@ -179,11 +177,6 @@ void show_stack_loglvl(struct task_struct *tsk, unsigned long *_ksp,
printk("%s\n", loglvl);
}

-void show_stack(struct task_struct *task, unsigned long *sp)
-{
- show_stack_loglvl(task, sp, KERN_DEFAULT);
-}
-
/*
* Free current thread data structures etc..
*/
diff --git a/arch/sparc/kernel/process_64.c b/arch/sparc/kernel/process_64.c
index 4282116e28e7..b2e3fe729b7e 100644
--- a/arch/sparc/kernel/process_64.c
+++ b/arch/sparc/kernel/process_64.c
@@ -195,7 +195,7 @@ void show_regs(struct pt_regs *regs)
regs->u_regs[15]);
printk("RPC: <%pS>\n", (void *) regs->u_regs[15]);
show_regwindow(regs);
- show_stack(current, (unsigned long *) regs->u_regs[UREG_FP]);
+ show_stack(current, (unsigned long *)regs->u_regs[UREG_FP], KERN_DEFAULT);
}

union global_cpu_snapshot global_cpu_snapshot[NR_CPUS];
diff --git a/arch/um/drivers/mconsole_kern.c b/arch/um/drivers/mconsole_kern.c
index b80a1d616e4e..697722fc58bd 100644
--- a/arch/um/drivers/mconsole_kern.c
+++ b/arch/um/drivers/mconsole_kern.c
@@ -642,7 +642,7 @@ static void stack_proc(void *arg)
{
struct task_struct *task = arg;

- show_stack(task, NULL);
+ show_stack(task, NULL, KERN_INFO);
}

/*
diff --git a/arch/um/kernel/sysrq.c b/arch/um/kernel/sysrq.c
index 1b54b6431499..acbc879d2773 100644
--- a/arch/um/kernel/sysrq.c
+++ b/arch/um/kernel/sysrq.c
@@ -27,7 +27,7 @@ static const struct stacktrace_ops stackops = {
.address = _print_addr
};

-void show_stack_loglvl(struct task_struct *task, unsigned long *stack,
+void show_stack(struct task_struct *task, unsigned long *stack,
const char *loglvl)
{
struct pt_regs *segv_regs = current->thread.segv_regs;
@@ -56,8 +56,3 @@ void show_stack_loglvl(struct task_struct *task, unsigned long *stack,
dump_trace(current, &stackops, (void *)loglvl);
printk("%s\n", loglvl);
}
-
-void show_stack(struct task_struct *task, unsigned long *stack)
-{
- show_stack_loglvl(task, stack, KERN_INFO);
-}
diff --git a/arch/unicore32/kernel/traps.c b/arch/unicore32/kernel/traps.c
index 8b1335997f50..a3ac01df1a2e 100644
--- a/arch/unicore32/kernel/traps.c
+++ b/arch/unicore32/kernel/traps.c
@@ -167,18 +167,13 @@ static void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk,
c_backtrace(fp, loglvl);
}

-void show_stack_loglvl(struct task_struct *tsk, unsigned long *sp,
+void show_stack(struct task_struct *tsk, unsigned long *sp,
const char *loglvl)
{
dump_backtrace(NULL, tsk, loglvl);
barrier();
}

-void show_stack(struct task_struct *tsk, unsigned long *sp)
-{
- show_stack_loglvl(tsk, sp, KERN_DEFAULT)
-}
-
static int __die(const char *str, int err, struct thread_info *thread,
struct pt_regs *regs)
{
diff --git a/arch/x86/kernel/amd_gart_64.c b/arch/x86/kernel/amd_gart_64.c
index c0fdf594709e..584016ff59b8 100644
--- a/arch/x86/kernel/amd_gart_64.c
+++ b/arch/x86/kernel/amd_gart_64.c
@@ -159,7 +159,7 @@ static void dump_leak(void)
return;
dump = 1;

- show_stack_loglvl(NULL, NULL, KERN_ERR);
+ show_stack(NULL, NULL, KERN_ERR);
debug_dma_dump_mappings(NULL);
}
#endif
diff --git a/arch/x86/kernel/dumpstack.c b/arch/x86/kernel/dumpstack.c
index 4396f2cfad19..456511b2284e 100644
--- a/arch/x86/kernel/dumpstack.c
+++ b/arch/x86/kernel/dumpstack.c
@@ -279,7 +279,7 @@ void show_trace_log_lvl(struct task_struct *task, struct pt_regs *regs,
}
}

-void show_stack_loglvl(struct task_struct *task, unsigned long *sp,
+void show_stack(struct task_struct *task, unsigned long *sp,
const char *loglvl)
{
task = task ? : current;
@@ -294,11 +294,6 @@ void show_stack_loglvl(struct task_struct *task, unsigned long *sp,
show_trace_log_lvl(task, NULL, sp, loglvl);
}

-void show_stack(struct task_struct *task, unsigned long *sp)
-{
- show_stack_loglvl(task, sp, KERN_DEFAULT);
-}
-
void show_stack_regs(struct pt_regs *regs)
{
show_trace_log_lvl(current, regs, NULL, KERN_DEFAULT);
diff --git a/arch/xtensa/kernel/traps.c b/arch/xtensa/kernel/traps.c
index 3a50813eeb70..1671fbb816fa 100644
--- a/arch/xtensa/kernel/traps.c
+++ b/arch/xtensa/kernel/traps.c
@@ -501,8 +501,7 @@ static void show_trace(struct task_struct *task, unsigned long *sp,
#define STACK_DUMP_LINE_SIZE 32
static size_t kstack_depth_to_print = CONFIG_PRINT_STACK_DEPTH;

-void show_stack_loglvl(struct task_struct *task, unsigned long *sp,
- const char *loglvl)
+void show_stack(struct task_struct *task, unsigned long *sp, const char *loglvl)
{
size_t len;

@@ -519,11 +518,6 @@ void show_stack_loglvl(struct task_struct *task, unsigned long *sp,
show_trace(task, stack, loglvl);
}

-void show_stack(struct task_struct *task, unsigned long *sp)
-{
- show_stack_loglvl(task, sp, KERN_INFO);
-}
-
DEFINE_SPINLOCK(die_lock);

void die(const char * str, struct pt_regs * regs, long err)
@@ -540,7 +534,7 @@ void die(const char * str, struct pt_regs * regs, long err)
pr_info("%s: sig: %ld [#%d]%s\n", str, err, ++die_counter, pr);
show_regs(regs);
if (!user_mode(regs))
- show_stack(NULL, (unsigned long*)regs->areg[1]);
+ show_stack(NULL, (unsigned long *)regs->areg[1], KERN_INFO);

add_taint(TAINT_DIE, LOCKDEP_NOW_UNRELIABLE);
spin_unlock_irq(&die_lock);
diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index 9b8450eab02e..1f530479dd8b 100644
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -515,7 +515,7 @@ static void dpm_watchdog_handler(struct timer_list *t)
struct dpm_watchdog *wd = from_timer(wd, t, timer);

dev_emerg(wd->dev, "**** DPM device timeout ****\n");
- show_stack_loglvl(wd->tsk, NULL, KERN_EMERG);
+ show_stack(wd->tsk, NULL, KERN_EMERG);
panic("%s %s: unrecoverable failure\n",
dev_driver_string(wd->dev), dev_name(wd->dev));
}
diff --git a/drivers/tty/sysrq.c b/drivers/tty/sysrq.c
index fe1ffcbda194..aa9a95ed3758 100644
--- a/drivers/tty/sysrq.c
+++ b/drivers/tty/sysrq.c
@@ -220,7 +220,7 @@ static void showacpu(void *dummy)

raw_spin_lock_irqsave(&show_lock, flags);
pr_info("CPU%d:\n", smp_processor_id());
- show_stack_loglvl(NULL, NULL, KERN_INFO);
+ show_stack(NULL, NULL, KERN_INFO);
raw_spin_unlock_irqrestore(&show_lock, flags);
}

diff --git a/include/linux/sched/debug.h b/include/linux/sched/debug.h
index 373e4e3faf2a..00c45a0e6abe 100644
--- a/include/linux/sched/debug.h
+++ b/include/linux/sched/debug.h
@@ -30,9 +30,8 @@ extern void show_regs(struct pt_regs *);
* task), SP is the stack pointer of the first frame that should be shown in the back
* trace (or NULL if the entire call-chain of the task should be shown).
*/
-extern void show_stack(struct task_struct *task, unsigned long *sp);
-extern void show_stack_loglvl(struct task_struct *task, unsigned long *sp,
- const char *loglvl);
+extern void show_stack(struct task_struct *task, unsigned long *sp,
+ const char *loglvl);

extern void sched_show_task(struct task_struct *p);

diff --git a/kernel/debug/kdb/kdb_bt.c b/kernel/debug/kdb/kdb_bt.c
index 43f5dcd2b9ac..18e03aba2cfc 100644
--- a/kernel/debug/kdb/kdb_bt.c
+++ b/kernel/debug/kdb/kdb_bt.c
@@ -30,7 +30,7 @@ static void kdb_show_stack(struct task_struct *p, void *addr)
kdb_dump_stack_on_cpu(kdb_process_cpu(p));
console_loglevel = old_lvl;
} else {
- show_stack_loglvl(p, addr, KERN_EMERG);
+ show_stack(p, addr, KERN_EMERG);
}

kdb_trap_printk--;
diff --git a/kernel/locking/rtmutex-debug.c b/kernel/locking/rtmutex-debug.c
index 5e63d6e8a223..36e69100e8e0 100644
--- a/kernel/locking/rtmutex-debug.c
+++ b/kernel/locking/rtmutex-debug.c
@@ -125,7 +125,7 @@ void debug_rt_mutex_print_deadlock(struct rt_mutex_waiter *waiter)

printk("\n%s/%d's [blocked] stackdump:\n\n",
task->comm, task_pid_nr(task));
- show_stack_loglvl(task, NULL, KERN_DEFAULT);
+ show_stack(task, NULL, KERN_DEFAULT);
printk("\n%s/%d's [current] stackdump:\n\n",
current->comm, task_pid_nr(current));
dump_stack();
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index bae2c84077bd..54b96d891f5d 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -5948,7 +5948,7 @@ void sched_show_task(struct task_struct *p)
(unsigned long)task_thread_info(p)->flags);

print_worker_info(KERN_INFO, p);
- show_stack_loglvl(p, NULL, KERN_INFO);
+ show_stack(p, NULL, KERN_INFO);
put_task_stack(p);
}
EXPORT_SYMBOL_GPL(sched_show_task);
diff --git a/lib/dump_stack.c b/lib/dump_stack.c
index 5595e8962cf6..a00ee6eedc7c 100644
--- a/lib/dump_stack.c
+++ b/lib/dump_stack.c
@@ -74,7 +74,7 @@ void show_regs_print_info(const char *log_lvl)
static void __dump_stack(void)
{
dump_stack_print_info(KERN_DEFAULT);
- show_stack_loglvl(NULL, NULL, KERN_DEFAULT);
+ show_stack(NULL, NULL, KERN_DEFAULT);
}

/**
--
2.25.1