[PATCH v2 1/5] um: Remove unused os_process_pc

[Benjamin Berg]

From: Benjamin Berg <benjamin.berg at intel.com>

The function is not used anywhere in the codebase.

Signed-off-by: Benjamin Berg <benjamin.berg at intel.com>
---
 arch/um/include/shared/os.h |  1 -
 arch/um/os-Linux/process.c  | 33 ---------------------------------
 2 files changed, 34 deletions(-)

diff --git a/arch/um/include/shared/os.h b/arch/um/include/shared/os.h
index 9a039d6f1f74..c8c1a93c8d2c 100644
--- a/arch/um/include/shared/os.h
+++ b/arch/um/include/shared/os.h
@@ -199,7 +199,6 @@ extern int create_mem_file(unsigned long long len);
 extern void report_enomem(void);
 
 /* process.c */
-extern unsigned long os_process_pc(int pid);
 extern int os_process_parent(int pid);
 extern void os_alarm_process(int pid);
 extern void os_stop_process(int pid);
diff --git a/arch/um/os-Linux/process.c b/arch/um/os-Linux/process.c
index e52dd37ddadc..6b74a8d91e06 100644
--- a/arch/um/os-Linux/process.c
+++ b/arch/um/os-Linux/process.c
@@ -18,44 +18,11 @@
 #include <longjmp.h>
 #include <os.h>
 
-#define ARBITRARY_ADDR -1
 #define FAILURE_PID    -1
 
 #define STAT_PATH_LEN sizeof("/proc/#######/stat\0")
 #define COMM_SCANF "%*[^)])"
 
-unsigned long os_process_pc(int pid)
-{
-	char proc_stat[STAT_PATH_LEN], buf[256];
-	unsigned long pc = ARBITRARY_ADDR;
-	int fd, err;
-
-	sprintf(proc_stat, "/proc/%d/stat", pid);
-	fd = open(proc_stat, O_RDONLY, 0);
-	if (fd < 0) {
-		printk(UM_KERN_ERR "os_process_pc - couldn't open '%s', "
-		       "errno = %d\n", proc_stat, errno);
-		goto out;
-	}
-	CATCH_EINTR(err = read(fd, buf, sizeof(buf)));
-	if (err < 0) {
-		printk(UM_KERN_ERR "os_process_pc - couldn't read '%s', "
-		       "err = %d\n", proc_stat, errno);
-		goto out_close;
-	}
-	os_close_file(fd);
-	pc = ARBITRARY_ADDR;
-	if (sscanf(buf, "%*d " COMM_SCANF " %*c %*d %*d %*d %*d %*d %*d %*d "
-		   "%*d %*d %*d %*d %*d %*d %*d %*d %*d %*d %*d %*d %*d %*d "
-		   "%*d %*d %*d %*d %*d %lu", &pc) != 1)
-		printk(UM_KERN_ERR "os_process_pc - couldn't find pc in '%s'\n",
-		       buf);
- out_close:
-	close(fd);
- out:
-	return pc;
-}
-
 int os_process_parent(int pid)
 {
 	char stat[STAT_PATH_LEN];
-- 
2.46.0