From: Jason Wessel <jason.wessel@windriver.com>
Date: Thu, 5 Aug 2010 14:22:25 +0000 (-0500)
Subject: kgdb,mips: remove unused kgdb_cpu_doing_single_step operations
X-Git-Tag: firefly_0821_release~9833^2~1277^2~2
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=7aeb48b70b077375cdd2fe22f7a8b63ed6a98f25;p=firefly-linux-kernel-4.4.55.git

kgdb,mips: remove unused kgdb_cpu_doing_single_step operations

The mips kgdb specific code does not support software or HW single
stepping so it should not implement

Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Dongdong Deng <dongdong.deng@windriver.com>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
CC: linux-mips@linux-mips.org
---

diff --git a/arch/mips/kernel/kgdb.c b/arch/mips/kernel/kgdb.c
index 5e76c2daa7f4..1f4e2fa64140 100644
--- a/arch/mips/kernel/kgdb.c
+++ b/arch/mips/kernel/kgdb.c
@@ -329,7 +329,7 @@ static struct notifier_block kgdb_notifier = {
 };
 
 /*
- * Handle the 's' and 'c' commands
+ * Handle the 'c' command
  */
 int kgdb_arch_handle_exception(int vector, int signo, int err_code,
 			       char *remcom_in_buffer, char *remcom_out_buffer,
@@ -337,20 +337,14 @@ int kgdb_arch_handle_exception(int vector, int signo, int err_code,
 {
 	char *ptr;
 	unsigned long address;
-	int cpu = smp_processor_id();
 
 	switch (remcom_in_buffer[0]) {
-	case 's':
 	case 'c':
 		/* handle the optional parameter */
 		ptr = &remcom_in_buffer[1];
 		if (kgdb_hex2long(&ptr, &address))
 			regs->cp0_epc = address;
 
-		atomic_set(&kgdb_cpu_doing_single_step, -1);
-		if (remcom_in_buffer[0] == 's')
-			atomic_set(&kgdb_cpu_doing_single_step, cpu);
-
 		return 0;
 	}