gpu: nvgpu: Put debugfs dependencies inside #ifdef

Put all debugfs dependencies inside #ifdef CONFIG_DEBUG_FS. This
includes some functions in allocators that were used only for
debugging.

Remove include of linux/debugfs.h on files that do not deal with
debugfs.

linux/debugfs.h implicitly included linux/fs.h, which we relied on.
Add explicit include of linux/fs.h for all files where this is the
case.

Change-Id: I16feffae6b0e3a2edf366075cdc01ade86be06f9
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/1467897
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit

1 files changed, 5 insertions, 1 deletions

diff --git a/drivers/gpu/nvgpu/common/mm/lockless_allocator.c b/drivers/gpu/nvgpu/common/mm/lockless_allocator.c
index dc72d8bf..d8043c0b 100644
--- a/drivers/gpu/nvgpu/common/mm/lockless_allocator.c
+++ b/drivers/gpu/nvgpu/common/mm/lockless_allocator.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2016-2017, NVIDIA CORPORATION.  All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms and conditions of the GNU General Public License,
@@ -106,6 +106,7 @@ static void nvgpu_lockless_alloc_destroy(struct nvgpu_allocator *a)
         nvgpu_kfree(nvgpu_alloc_to_gpu(a), pa);
 }
 
+#ifdef CONFIG_DEBUG_FS
 static void nvgpu_lockless_print_stats(struct nvgpu_allocator *a,
                                    struct seq_file *s, int lock)
 {
@@ -122,6 +123,7 @@ static void nvgpu_lockless_print_stats(struct nvgpu_allocator *a,
         __alloc_pstat(s, a, "  Number free   = %d\n",
                       pa->nr_nodes - atomic_read(&pa->nr_allocs));
 }
+#endif
 
 static const struct nvgpu_allocator_ops pool_ops = {
         .alloc          = nvgpu_lockless_alloc,
@@ -134,7 +136,9 @@ static const struct nvgpu_allocator_ops pool_ops = {
 
         .fini           = nvgpu_lockless_alloc_destroy,
 
+#ifdef CONFIG_DEBUG_FS
         .print_stats    = nvgpu_lockless_print_stats,
+#endif
 };
 
 int nvgpu_lockless_allocator_init(struct gk20a *g, struct nvgpu_allocator *__a,