Commit ee1e9900 authored by Dmitry Safonov's avatar Dmitry Safonov Committed by Linus Torvalds
Browse files

unicore32: remove unused pmode argument in c_backtrace() 



The pmode parameter isn't used in assembly - remove it.  Second argument
will be reused for printk() log level.

Signed-off-by: default avatarDmitry Safonov <dima@arista.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Cc: Guan Xuetao <gxt@pku.edu.cn>
Link: http://lkml.kernel.org/r/20200418201944.482088-38-dima@arista.com


Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 1ad87824

arch/unicore32/kernel/setup.h

+1 −1
Original line number Diff line number Diff line
@@ -29,7 +29,7 @@ extern void kernel_thread_helper(void); 
extern void __init early_signal_init(void);



extern asmlinkage void __backtrace(void);

extern asmlinkage void c_backtrace(unsigned long fp, int pmode);

extern asmlinkage void c_backtrace(unsigned long fp);



extern void __show_regs(struct pt_regs *);

arch/unicore32/kernel/traps.c

+5 −9
Original line number Diff line number Diff line
@@ -137,7 +137,7 @@ static void dump_instr(const char *lvl, struct pt_regs *regs) 


static void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk)

{

	unsigned int fp, mode;

	unsigned int fp;

	int ok = 1;



	printk(KERN_DEFAULT "Backtrace: ");
@@ -145,16 +145,12 @@ static void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk) 
	if (!tsk)

		tsk = current;



	if (regs) {

	if (regs)

		fp = regs->UCreg_fp;

		mode = processor_mode(regs);

	} else if (tsk != current) {

	else if (tsk != current)

		fp = thread_saved_fp(tsk);

		mode = 0x10;

	} else {

	else

		asm("mov %0, fp" : "=r" (fp) : : "cc");

		mode = 0x10;

	}



	if (!fp) {

		printk("no frame pointer");
@@ -167,7 +163,7 @@ static void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk) 
	printk("\n");



	if (ok)

		c_backtrace(fp, mode);

		c_backtrace(fp);

}



void show_stack(struct task_struct *tsk, unsigned long *sp)