From ee1e99009e914e4150774f5a717c179545c7699e Mon Sep 17 00:00:00 2001 From: Dmitry Safonov Date: Mon, 8 Jun 2020 21:31:48 -0700 Subject: 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: Dmitry Safonov Signed-off-by: Andrew Morton Cc: Guan Xuetao Link: http://lkml.kernel.org/r/20200418201944.482088-38-dima@arista.com Signed-off-by: Linus Torvalds --- arch/unicore32/kernel/setup.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/unicore32/kernel/setup.h') diff --git a/arch/unicore32/kernel/setup.h b/arch/unicore32/kernel/setup.h index e40d3603c7e7..03e70e37f472 100644 --- a/arch/unicore32/kernel/setup.h +++ b/arch/unicore32/kernel/setup.h @@ -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 *); -- cgit v1.2.3 From de985dd50158fedde5f2916c1bcf949a0acf5cd0 Mon Sep 17 00:00:00 2001 From: Dmitry Safonov Date: Mon, 8 Jun 2020 21:31:51 -0700 Subject: unicore32: add loglvl to c_backtrace() Currently, the log-level of show_stack() depends on a platform realization. It creates situations where the headers are printed with lower log level or higher than the stacktrace (depending on a platform or user). Furthermore, it forces the logic decision from user to an architecture side. In result, some users as sysrq/kdb/etc are doing tricks with temporary rising console_loglevel while printing their messages. And in result it not only may print unwanted messages from other CPUs, but also omit printing at all in the unlucky case where the printk() was deferred. Introducing log-level parameter and KERN_UNSUPPRESSED [1] seems an easier approach than introducing more printk buffers. Also, it will consolidate printings with headers. Add log level parameter to c_backtrace() as a preparation for introducing show_stack_loglvl() [1]: https://lore.kernel.org/lkml/20190528002412.1625-1-dima@arista.com/T/#u Signed-off-by: Dmitry Safonov Signed-off-by: Andrew Morton Cc: Guan Xuetao Link: http://lkml.kernel.org/r/20200418201944.482088-39-dima@arista.com Signed-off-by: Linus Torvalds --- arch/unicore32/kernel/setup.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/unicore32/kernel/setup.h') diff --git a/arch/unicore32/kernel/setup.h b/arch/unicore32/kernel/setup.h index 03e70e37f472..967352323185 100644 --- a/arch/unicore32/kernel/setup.h +++ b/arch/unicore32/kernel/setup.h @@ -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); +extern asmlinkage void c_backtrace(unsigned long fp, const char *loglvl); extern void __show_regs(struct pt_regs *); -- cgit v1.2.3