module: Convert symbol namespace to string literal

Clean up the existing export namespace code along the same lines of
commit 33def8498fdd ("treewide: Convert macro and uses of __section(foo)
to __section("foo")") and for the same reason, it is not desired for the
namespace argument to be a macro expansion itself.

Scripted using

  git grep -l -e MODULE_IMPORT_NS -e EXPORT_SYMBOL_NS | while read file;
  do
    awk -i inplace '
      /^#define EXPORT_SYMBOL_NS/ {
        gsub(/__stringify\(ns\)/, "ns");
        print;
        next;
      }
      /^#define MODULE_IMPORT_NS/ {
        gsub(/__stringify\(ns\)/, "ns");
        print;
        next;
      }
      /MODULE_IMPORT_NS/ {
        $0 = gensub(/MODULE_IMPORT_NS\(([^)]*)\)/, "MODULE_IMPORT_NS(\"\\1\")", "g");
      }
      /EXPORT_SYMBOL_NS/ {
        if ($0 ~ /(EXPORT_SYMBOL_NS[^(]*)\(([^,]+),/) {
  	if ($0 !~ /(EXPORT_SYMBOL_NS[^(]*)\(([^,]+), ([^)]+)\)/ &&
  	    $0 !~ /(EXPORT_SYMBOL_NS[^(]*)\(\)/ &&
  	    $0 !~ /^my/) {
  	  getline line;
  	  gsub(/[[:space:]]*\\$/, "");
  	  gsub(/[[:space:]]/, "", line);
  	  $0 = $0 " " line;
  	}

  	$0 = gensub(/(EXPORT_SYMBOL_NS[^(]*)\(([^,]+), ([^)]+)\)/,
  		    "\\1(\\2, \"\\3\")", "g");
        }
      }
      { print }' $file;
  done

Requested-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://mail.google.com/mail/u/2/#inbox/FMfcgzQXKWgMmjdFwwdsfgxzKpVHWPlc
Acked-by: Greg KH <gregkh@linuxfoundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2 files changed, 9 insertions, 9 deletions

diff --git a/drivers/powercap/idle_inject.c b/drivers/powercap/idle_inject.c
index bafc59904ed3..04c212953ded 100644
--- a/drivers/powercap/idle_inject.c
+++ b/drivers/powercap/idle_inject.c
@@ -179,7 +179,7 @@ void idle_inject_set_duration(struct idle_inject_device *ii_dev,
 	if (!run_duration_us)
 		pr_debug("CPU is forced to 100 percent idle\n");
 }
-EXPORT_SYMBOL_NS_GPL(idle_inject_set_duration, IDLE_INJECT);
+EXPORT_SYMBOL_NS_GPL(idle_inject_set_duration, "IDLE_INJECT");
 
 /**
  * idle_inject_get_duration - idle and run duration retrieval helper
@@ -194,7 +194,7 @@ void idle_inject_get_duration(struct idle_inject_device *ii_dev,
 	*run_duration_us = READ_ONCE(ii_dev->run_duration_us);
 	*idle_duration_us = READ_ONCE(ii_dev->idle_duration_us);
 }
-EXPORT_SYMBOL_NS_GPL(idle_inject_get_duration, IDLE_INJECT);
+EXPORT_SYMBOL_NS_GPL(idle_inject_get_duration, "IDLE_INJECT");
 
 /**
  * idle_inject_set_latency - set the maximum latency allowed
@@ -206,7 +206,7 @@ void idle_inject_set_latency(struct idle_inject_device *ii_dev,
 {
 	WRITE_ONCE(ii_dev->latency_us, latency_us);
 }
-EXPORT_SYMBOL_NS_GPL(idle_inject_set_latency, IDLE_INJECT);
+EXPORT_SYMBOL_NS_GPL(idle_inject_set_latency, "IDLE_INJECT");
 
 /**
  * idle_inject_start - start idle injections
@@ -238,7 +238,7 @@ int idle_inject_start(struct idle_inject_device *ii_dev)
 
 	return 0;
 }
-EXPORT_SYMBOL_NS_GPL(idle_inject_start, IDLE_INJECT);
+EXPORT_SYMBOL_NS_GPL(idle_inject_start, "IDLE_INJECT");
 
 /**
  * idle_inject_stop - stops idle injections
@@ -285,7 +285,7 @@ void idle_inject_stop(struct idle_inject_device *ii_dev)
 
 	cpu_hotplug_enable();
 }
-EXPORT_SYMBOL_NS_GPL(idle_inject_stop, IDLE_INJECT);
+EXPORT_SYMBOL_NS_GPL(idle_inject_stop, "IDLE_INJECT");
 
 /**
  * idle_inject_setup - prepare the current task for idle injection
@@ -367,7 +367,7 @@ out_rollback:
 
 	return NULL;
 }
-EXPORT_SYMBOL_NS_GPL(idle_inject_register_full, IDLE_INJECT);
+EXPORT_SYMBOL_NS_GPL(idle_inject_register_full, "IDLE_INJECT");
 
 /**
  * idle_inject_register - initialize idle injection on a set of CPUs
@@ -384,7 +384,7 @@ struct idle_inject_device *idle_inject_register(struct cpumask *cpumask)
 {
 	return idle_inject_register_full(cpumask, NULL);
 }
-EXPORT_SYMBOL_NS_GPL(idle_inject_register, IDLE_INJECT);
+EXPORT_SYMBOL_NS_GPL(idle_inject_register, "IDLE_INJECT");
 
 /**
  * idle_inject_unregister - unregister idle injection control device
@@ -405,7 +405,7 @@ void idle_inject_unregister(struct idle_inject_device *ii_dev)
 
 	kfree(ii_dev);
 }
-EXPORT_SYMBOL_NS_GPL(idle_inject_unregister, IDLE_INJECT);
+EXPORT_SYMBOL_NS_GPL(idle_inject_unregister, "IDLE_INJECT");
 
 static struct smp_hotplug_thread idle_inject_threads = {
 	.store = &idle_inject_thread.tsk,
diff --git a/drivers/powercap/intel_rapl_tpmi.c b/drivers/powercap/intel_rapl_tpmi.c
index 645fd1dc51a9..af2368f4db10 100644
--- a/drivers/powercap/intel_rapl_tpmi.c
+++ b/drivers/powercap/intel_rapl_tpmi.c
@@ -347,7 +347,7 @@ static struct auxiliary_driver intel_rapl_tpmi_driver = {
 
 module_auxiliary_driver(intel_rapl_tpmi_driver)
 
-MODULE_IMPORT_NS(INTEL_TPMI);
+MODULE_IMPORT_NS("INTEL_TPMI");
 
 MODULE_DESCRIPTION("Intel RAPL TPMI Driver");
 MODULE_LICENSE("GPL");