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>

7 files changed, 9 insertions, 10 deletions

diff --git a/include/kunit/visibility.h b/include/kunit/visibility.h
index efff77b58dd6..7c34c8ffcf3b 100644
--- a/include/kunit/visibility.h
+++ b/include/kunit/visibility.h
@@ -20,12 +20,11 @@
     /**
      * EXPORT_SYMBOL_IF_KUNIT(symbol) - Exports symbol into
      * EXPORTED_FOR_KUNIT_TESTING namespace only if CONFIG_KUNIT is
-     * enabled. Must use MODULE_IMPORT_NS(EXPORTED_FOR_KUNIT_TESTING)
+     * enabled. Must use MODULE_IMPORT_NS("EXPORTED_FOR_KUNIT_TESTING")
      * in test file in order to use symbols.
      * @symbol: the symbol identifier to export
      */
-    #define EXPORT_SYMBOL_IF_KUNIT(symbol) EXPORT_SYMBOL_NS(symbol, \
-	    EXPORTED_FOR_KUNIT_TESTING)
+    #define EXPORT_SYMBOL_IF_KUNIT(symbol) EXPORT_SYMBOL_NS(symbol, "EXPORTED_FOR_KUNIT_TESTING")
 #else
     #define VISIBLE_IF_KUNIT static
     #define EXPORT_SYMBOL_IF_KUNIT(symbol)
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 05f39fbfa485..6adcd1b92b20 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -40,7 +40,7 @@ struct irq_domain_ops;
 #include <asm/acpi.h>
 
 #ifdef CONFIG_ACPI_TABLE_LIB
-#define EXPORT_SYMBOL_ACPI_LIB(x) EXPORT_SYMBOL_NS_GPL(x, ACPI)
+#define EXPORT_SYMBOL_ACPI_LIB(x) EXPORT_SYMBOL_NS_GPL(x, "ACPI")
 #define __init_or_acpilib
 #define __initdata_or_acpilib
 #else
diff --git a/include/linux/export.h b/include/linux/export.h
index 0bbd02fd351d..f5f3950a1e42 100644
--- a/include/linux/export.h
+++ b/include/linux/export.h
@@ -67,7 +67,7 @@
 
 #define EXPORT_SYMBOL(sym)		_EXPORT_SYMBOL(sym, "")
 #define EXPORT_SYMBOL_GPL(sym)		_EXPORT_SYMBOL(sym, "GPL")
-#define EXPORT_SYMBOL_NS(sym, ns)	__EXPORT_SYMBOL(sym, "", __stringify(ns))
-#define EXPORT_SYMBOL_NS_GPL(sym, ns)	__EXPORT_SYMBOL(sym, "GPL", __stringify(ns))
+#define EXPORT_SYMBOL_NS(sym, ns)	__EXPORT_SYMBOL(sym, "", ns)
+#define EXPORT_SYMBOL_NS_GPL(sym, ns)	__EXPORT_SYMBOL(sym, "GPL", ns)
 
 #endif /* _LINUX_EXPORT_H */
diff --git a/include/linux/fw_table.h b/include/linux/fw_table.h
index 3ff4c277296f..9bd605b87c4c 100644
--- a/include/linux/fw_table.h
+++ b/include/linux/fw_table.h
@@ -54,7 +54,7 @@ int cdat_table_parse(enum acpi_cdat_type type,
 #define EXPORT_SYMBOL_FWTBL_LIB(x) EXPORT_SYMBOL_ACPI_LIB(x)
 #define __init_or_fwtbl_lib __init_or_acpilib
 #else
-#define EXPORT_SYMBOL_FWTBL_LIB(x) EXPORT_SYMBOL_NS_GPL(x, CXL)
+#define EXPORT_SYMBOL_FWTBL_LIB(x) EXPORT_SYMBOL_NS_GPL(x, "CXL")
 #define __init_or_fwtbl_lib
 #endif
 
diff --git a/include/linux/module.h b/include/linux/module.h
index c60ee39cb9b1..94acbacdcdf1 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -296,7 +296,7 @@ extern typeof(name) __mod_device_table__##type##__##name		\
  * files require multiple MODULE_FIRMWARE() specifiers */
 #define MODULE_FIRMWARE(_firmware) MODULE_INFO(firmware, _firmware)
 
-#define MODULE_IMPORT_NS(ns)	MODULE_INFO(import_ns, __stringify(ns))
+#define MODULE_IMPORT_NS(ns)	MODULE_INFO(import_ns, ns)
 
 struct notifier_block;
 
diff --git a/include/linux/pm.h b/include/linux/pm.h
index 97b0e23363c8..e7f0260f15ad 100644
--- a/include/linux/pm.h
+++ b/include/linux/pm.h
@@ -385,7 +385,7 @@ const struct dev_pm_ops name = { \
 #ifdef CONFIG_PM
 #define _EXPORT_DEV_PM_OPS(name, license, ns)		_EXPORT_PM_OPS(name, license, ns)
 #define EXPORT_PM_FN_GPL(name)				EXPORT_SYMBOL_GPL(name)
-#define EXPORT_PM_FN_NS_GPL(name, ns)			EXPORT_SYMBOL_NS_GPL(name, ns)
+#define EXPORT_PM_FN_NS_GPL(name, ns)			EXPORT_SYMBOL_NS_GPL(name, "ns")
 #else
 #define _EXPORT_DEV_PM_OPS(name, license, ns)		_DISCARD_PM_OPS(name, license, ns)
 #define EXPORT_PM_FN_GPL(name)
diff --git a/include/linux/pwm.h b/include/linux/pwm.h
index 78827f312407..6853e29d9674 100644
--- a/include/linux/pwm.h
+++ b/include/linux/pwm.h
@@ -8,7 +8,7 @@
 #include <linux/mutex.h>
 #include <linux/of.h>
 
-MODULE_IMPORT_NS(PWM);
+MODULE_IMPORT_NS("PWM");
 
 struct pwm_chip;