[PATCH 9/9] testmmiotrace: eliminate anonymous module_init & module_exit

[Randy Dunlap <rdunlap@xxxxxxxxxxxxx>]

Eliminate anonymous module_init() and module_exit(), which can lead to
confusion or ambiguity when reading System.map, crashes/oops/bugs,
or an initcall_debug log.

Give each of these init and exit functions unique driver-specific
names to eliminate the anonymous names.

Example 1: (System.map)
 ffffffff832fc78c t init
 ffffffff832fc79e t init
 ffffffff832fc8f8 t init

Example 2: (initcall_debug log)
 calling  init+0x0/0x12 @ 1
 initcall init+0x0/0x12 returned 0 after 15 usecs
 calling  init+0x0/0x60 @ 1
 initcall init+0x0/0x60 returned 0 after 2 usecs
 calling  init+0x0/0x9a @ 1
 initcall init+0x0/0x9a returned 0 after 74 usecs

Fixes: 8b7d89d02ef3 ("x86: mmiotrace - trace memory mapped IO")
Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Steven Rostedt <rostedt@xxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Karol Herbst <karolherbst@xxxxxxxxx>
Cc: Pekka Paalanen <ppaalanen@xxxxxxxxx>
Cc: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>
Cc: Andy Lutomirski <luto@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Borislav Petkov <bp@xxxxxxxxx>
Cc: "H. Peter Anvin" <hpa@xxxxxxxxx>
Cc: nouveau@xxxxxxxxxxxxxxxxxxxxx
Cc: x86@xxxxxxxxxx
---
 arch/x86/mm/testmmiotrace.c |    8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

--- lnx-517-rc8.orig/arch/x86/mm/testmmiotrace.c
+++ lnx-517-rc8/arch/x86/mm/testmmiotrace.c
@@ -113,7 +113,7 @@ static void do_test_bulk_ioremapping(voi
 	synchronize_rcu();
 }
 
-static int __init init(void)
+static int __init testmmiotrace_init(void)
 {
 	unsigned long size = (read_far) ? (8 << 20) : (16 << 10);
 	int ret = security_locked_down(LOCKDOWN_MMIOTRACE);
@@ -136,11 +136,11 @@ static int __init init(void)
 	return 0;
 }
 
-static void __exit cleanup(void)
+static void __exit testmmiotrace_cleanup(void)
 {
 	pr_debug("unloaded.\n");
 }
 
-module_init(init);
-module_exit(cleanup);
+module_init(testmmiotrace_init);
+module_exit(testmmiotrace_cleanup);
 MODULE_LICENSE("GPL");