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, 7 insertions, 7 deletions

diff --git a/drivers/leds/flash/leds-ktd2692.c b/drivers/leds/flash/leds-ktd2692.c
index 743830a10f99..0f16eefcfe4c 100644
--- a/drivers/leds/flash/leds-ktd2692.c
+++ b/drivers/leds/flash/leds-ktd2692.c
@@ -349,7 +349,7 @@ static struct platform_driver ktd2692_driver = {
 
 module_platform_driver(ktd2692_driver);
 
-MODULE_IMPORT_NS(EXPRESSWIRE);
+MODULE_IMPORT_NS("EXPRESSWIRE");
 MODULE_AUTHOR("Ingi Kim <ingi2.kim@samsung.com>");
 MODULE_DESCRIPTION("Kinetic KTD2692 LED driver");
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/leds/leds-expresswire.c b/drivers/leds/leds-expresswire.c
index e4937a8e0f44..bb69be228a6d 100644
--- a/drivers/leds/leds-expresswire.c
+++ b/drivers/leds/leds-expresswire.c
@@ -18,7 +18,7 @@ void expresswire_power_off(struct expresswire_common_props *props)
 	gpiod_set_value_cansleep(props->ctrl_gpio, 0);
 	usleep_range(props->timing.poweroff_us, props->timing.poweroff_us * 2);
 }
-EXPORT_SYMBOL_NS_GPL(expresswire_power_off, EXPRESSWIRE);
+EXPORT_SYMBOL_NS_GPL(expresswire_power_off, "EXPRESSWIRE");
 
 void expresswire_enable(struct expresswire_common_props *props)
 {
@@ -28,14 +28,14 @@ void expresswire_enable(struct expresswire_common_props *props)
 	udelay(props->timing.detect_us);
 	gpiod_set_value(props->ctrl_gpio, 1);
 }
-EXPORT_SYMBOL_NS_GPL(expresswire_enable, EXPRESSWIRE);
+EXPORT_SYMBOL_NS_GPL(expresswire_enable, "EXPRESSWIRE");
 
 void expresswire_start(struct expresswire_common_props *props)
 {
 	gpiod_set_value(props->ctrl_gpio, 1);
 	udelay(props->timing.data_start_us);
 }
-EXPORT_SYMBOL_NS_GPL(expresswire_start, EXPRESSWIRE);
+EXPORT_SYMBOL_NS_GPL(expresswire_start, "EXPRESSWIRE");
 
 void expresswire_end(struct expresswire_common_props *props)
 {
@@ -44,7 +44,7 @@ void expresswire_end(struct expresswire_common_props *props)
 	gpiod_set_value(props->ctrl_gpio, 1);
 	udelay(props->timing.end_of_data_high_us);
 }
-EXPORT_SYMBOL_NS_GPL(expresswire_end, EXPRESSWIRE);
+EXPORT_SYMBOL_NS_GPL(expresswire_end, "EXPRESSWIRE");
 
 void expresswire_set_bit(struct expresswire_common_props *props, bool bit)
 {
@@ -60,7 +60,7 @@ void expresswire_set_bit(struct expresswire_common_props *props, bool bit)
 		udelay(props->timing.short_bitset_us);
 	}
 }
-EXPORT_SYMBOL_NS_GPL(expresswire_set_bit, EXPRESSWIRE);
+EXPORT_SYMBOL_NS_GPL(expresswire_set_bit, "EXPRESSWIRE");
 
 void expresswire_write_u8(struct expresswire_common_props *props, u8 val)
 {
@@ -69,4 +69,4 @@ void expresswire_write_u8(struct expresswire_common_props *props, u8 val)
 		expresswire_set_bit(props, val & BIT(i));
 	expresswire_end(props);
 }
-EXPORT_SYMBOL_NS_GPL(expresswire_write_u8, EXPRESSWIRE);
+EXPORT_SYMBOL_NS_GPL(expresswire_write_u8, "EXPRESSWIRE");