um: Remove unused os_process_pc

The function is not used anywhere in the codebase.

Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Link: https://patch.msgid.link/20240913134442.967599-2-benjamin@sipsolutions.net
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/arch/um/include/shared/os.h b/arch/um/include/shared/os.h
index 9a039d6f1f748302113916afde21645a4601acc9..c8c1a93c8d2c5529698379591dd0ac8ae02335ab 100644 (file)
--- 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 e52dd37ddadccc5f07eebea20705db23d6f65ada..6b74a8d91e06d6aadfadf8d237c14d7928c1491e 100644 (file)
--- 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];