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>

4 files changed, 12 insertions, 12 deletions

diff --git a/drivers/dma/idxd/compat.c b/drivers/dma/idxd/compat.c
index a4adb0c17995..eff9943f1a42 100644
--- a/drivers/dma/idxd/compat.c
+++ b/drivers/dma/idxd/compat.c
@@ -103,4 +103,4 @@ struct idxd_device_driver dsa_drv = {
 };
 
 module_idxd_driver(dsa_drv);
-MODULE_IMPORT_NS(IDXD);
+MODULE_IMPORT_NS("IDXD");
diff --git a/drivers/dma/idxd/device.c b/drivers/dma/idxd/device.c
index c41ef195eeb9..5cf419fe6b46 100644
--- a/drivers/dma/idxd/device.c
+++ b/drivers/dma/idxd/device.c
@@ -161,7 +161,7 @@ int idxd_wq_alloc_resources(struct idxd_wq *wq)
 	free_hw_descs(wq);
 	return rc;
 }
-EXPORT_SYMBOL_NS_GPL(idxd_wq_alloc_resources, IDXD);
+EXPORT_SYMBOL_NS_GPL(idxd_wq_alloc_resources, "IDXD");
 
 void idxd_wq_free_resources(struct idxd_wq *wq)
 {
@@ -175,7 +175,7 @@ void idxd_wq_free_resources(struct idxd_wq *wq)
 	dma_free_coherent(dev, wq->compls_size, wq->compls, wq->compls_addr);
 	sbitmap_queue_free(&wq->sbq);
 }
-EXPORT_SYMBOL_NS_GPL(idxd_wq_free_resources, IDXD);
+EXPORT_SYMBOL_NS_GPL(idxd_wq_free_resources, "IDXD");
 
 int idxd_wq_enable(struct idxd_wq *wq)
 {
@@ -407,7 +407,7 @@ int idxd_wq_init_percpu_ref(struct idxd_wq *wq)
 	reinit_completion(&wq->wq_resurrect);
 	return 0;
 }
-EXPORT_SYMBOL_NS_GPL(idxd_wq_init_percpu_ref, IDXD);
+EXPORT_SYMBOL_NS_GPL(idxd_wq_init_percpu_ref, "IDXD");
 
 void __idxd_wq_quiesce(struct idxd_wq *wq)
 {
@@ -417,7 +417,7 @@ void __idxd_wq_quiesce(struct idxd_wq *wq)
 	complete_all(&wq->wq_resurrect);
 	wait_for_completion(&wq->wq_dead);
 }
-EXPORT_SYMBOL_NS_GPL(__idxd_wq_quiesce, IDXD);
+EXPORT_SYMBOL_NS_GPL(__idxd_wq_quiesce, "IDXD");
 
 void idxd_wq_quiesce(struct idxd_wq *wq)
 {
@@ -425,7 +425,7 @@ void idxd_wq_quiesce(struct idxd_wq *wq)
 	__idxd_wq_quiesce(wq);
 	mutex_unlock(&wq->wq_lock);
 }
-EXPORT_SYMBOL_NS_GPL(idxd_wq_quiesce, IDXD);
+EXPORT_SYMBOL_NS_GPL(idxd_wq_quiesce, "IDXD");
 
 /* Device control bits */
 static inline bool idxd_is_enabled(struct idxd_device *idxd)
@@ -1494,7 +1494,7 @@ err_map_portal:
 err:
 	return rc;
 }
-EXPORT_SYMBOL_NS_GPL(idxd_drv_enable_wq, IDXD);
+EXPORT_SYMBOL_NS_GPL(idxd_drv_enable_wq, "IDXD");
 
 void idxd_drv_disable_wq(struct idxd_wq *wq)
 {
@@ -1516,7 +1516,7 @@ void idxd_drv_disable_wq(struct idxd_wq *wq)
 	wq->type = IDXD_WQT_NONE;
 	wq->client_count = 0;
 }
-EXPORT_SYMBOL_NS_GPL(idxd_drv_disable_wq, IDXD);
+EXPORT_SYMBOL_NS_GPL(idxd_drv_disable_wq, "IDXD");
 
 int idxd_device_drv_probe(struct idxd_dev *idxd_dev)
 {
diff --git a/drivers/dma/idxd/init.c b/drivers/dma/idxd/init.c
index 234c1c658ec7..140f8d772bee 100644
--- a/drivers/dma/idxd/init.c
+++ b/drivers/dma/idxd/init.c
@@ -25,7 +25,7 @@ MODULE_VERSION(IDXD_DRIVER_VERSION);
 MODULE_DESCRIPTION("Intel Data Streaming Accelerator and In-Memory Analytics Accelerator common driver");
 MODULE_LICENSE("GPL v2");
 MODULE_AUTHOR("Intel Corporation");
-MODULE_IMPORT_NS(IDXD);
+MODULE_IMPORT_NS("IDXD");
 
 static bool sva = true;
 module_param(sva, bool, 0644);
diff --git a/drivers/dma/idxd/submit.c b/drivers/dma/idxd/submit.c
index 94eca25ae9b9..6db1c5fcedc5 100644
--- a/drivers/dma/idxd/submit.c
+++ b/drivers/dma/idxd/submit.c
@@ -61,7 +61,7 @@ struct idxd_desc *idxd_alloc_desc(struct idxd_wq *wq, enum idxd_op_type optype)
 
 	return __get_desc(wq, idx, cpu);
 }
-EXPORT_SYMBOL_NS_GPL(idxd_alloc_desc, IDXD);
+EXPORT_SYMBOL_NS_GPL(idxd_alloc_desc, "IDXD");
 
 void idxd_free_desc(struct idxd_wq *wq, struct idxd_desc *desc)
 {
@@ -70,7 +70,7 @@ void idxd_free_desc(struct idxd_wq *wq, struct idxd_desc *desc)
 	desc->cpu = -1;
 	sbitmap_queue_clear(&wq->sbq, desc->id, cpu);
 }
-EXPORT_SYMBOL_NS_GPL(idxd_free_desc, IDXD);
+EXPORT_SYMBOL_NS_GPL(idxd_free_desc, "IDXD");
 
 static struct idxd_desc *list_abort_desc(struct idxd_wq *wq, struct idxd_irq_entry *ie,
 					 struct idxd_desc *desc)
@@ -219,4 +219,4 @@ int idxd_submit_desc(struct idxd_wq *wq, struct idxd_desc *desc)
 	percpu_ref_put(&wq->wq_active);
 	return 0;
 }
-EXPORT_SYMBOL_NS_GPL(idxd_submit_desc, IDXD);
+EXPORT_SYMBOL_NS_GPL(idxd_submit_desc, "IDXD");