linux-kernel - [PATCH v3 4/4] arc: Use generic dump_stack_print

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Date:   Mon,  8 Aug 2022 15:09:17 +0200
From:   Helge Deller <deller@....de>
To:     linux-s390@...r.kernel.org, Josh Triplett <josh@...htriplett.org>,
        x86@...nel.org, linux-snps-arc@...ts.infradead.org,
        linux-fsdevel@...r.kernel.org, linux-parisc@...r.kernel.org,
        linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        linux-arm-kernel@...ts.infradead.org
Subject: [PATCH v3 4/4] arc: Use generic dump_stack_print_cmdline() implementation

The process program name and command line is now shown in generic code
in dump_stack_print_info(), so drop the arc-specific implementation.

Signed-off-by: Helge Deller <deller@....de>
---
 arch/arc/kernel/troubleshoot.c | 24 ------------------------
 1 file changed, 24 deletions(-)

diff --git a/arch/arc/kernel/troubleshoot.c b/arch/arc/kernel/troubleshoot.c
index 7654c2e42dc0..9807e590ee55 100644
--- a/arch/arc/kernel/troubleshoot.c
+++ b/arch/arc/kernel/troubleshoot.c
@@ -51,29 +51,6 @@ static void print_regs_callee(struct callee_regs *regs)
 		regs->r24, regs->r25);
 }

-static void print_task_path_n_nm(struct task_struct *tsk)
-{
-	char *path_nm = NULL;
-	struct mm_struct *mm;
-	struct file *exe_file;
-	char buf[ARC_PATH_MAX];
-
-	mm = get_task_mm(tsk);
-	if (!mm)
-		goto done;
-
-	exe_file = get_mm_exe_file(mm);
-	mmput(mm);
-
-	if (exe_file) {
-		path_nm = file_path(exe_file, buf, ARC_PATH_MAX-1);
-		fput(exe_file);
-	}
-
-done:
-	pr_info("Path: %s\n", !IS_ERR(path_nm) ? path_nm : "?");
-}
-
 static void show_faulting_vma(unsigned long address)
 {
 	struct vm_area_struct *vma;
@@ -176,7 +153,6 @@ void show_regs(struct pt_regs *regs)
 	 */
 	preempt_enable();

-	print_task_path_n_nm(tsk);
 	show_regs_print_info(KERN_INFO);

 	show_ecr_verbose(regs);
--
2.37.1