Den 25.03.2017 22.32, skrev Daniel Vetter:
On Sat, Mar 25, 2017 at 02:56:20PM +0100, Noralf Trønnes wrote:
drm_driver.fops can't be shared since the owner then becomes tinydrm.ko.
Move the fops declaration to the driver.

Reported-by: Daniel Vetter <daniel.vet...@intel.com>
Signed-off-by: Noralf Trønnes <nor...@tronnes.org>
Since it only "breaks" unloading (and only if you force-unload without
knowing what you're doing, which is explicitly a developer feature with a
big warning) I think perfectly ok to push this in only for 4.12.

---
  drivers/gpu/drm/tinydrm/core/tinydrm-core.c | 15 ---------------
  drivers/gpu/drm/tinydrm/mi0283qt.c          | 13 +++++++++++++
  include/drm/tinydrm/tinydrm.h               |  4 +---
  3 files changed, 14 insertions(+), 18 deletions(-)

diff --git a/drivers/gpu/drm/tinydrm/core/tinydrm-core.c 
b/drivers/gpu/drm/tinydrm/core/tinydrm-core.c
index 6a257dd..fd25c7e5 100644
--- a/drivers/gpu/drm/tinydrm/core/tinydrm-core.c
+++ b/drivers/gpu/drm/tinydrm/core/tinydrm-core.c
@@ -122,21 +122,6 @@ void tinydrm_gem_cma_free_object(struct drm_gem_object 
*gem_obj)
  }
  EXPORT_SYMBOL_GPL(tinydrm_gem_cma_free_object);
-const struct file_operations tinydrm_fops = {
-       .owner          = THIS_MODULE,
-       .open           = drm_open,
-       .release        = drm_release,
-       .unlocked_ioctl = drm_ioctl,
-#ifdef CONFIG_COMPAT
-       .compat_ioctl   = drm_compat_ioctl,
-#endif
-       .poll           = drm_poll,
-       .read           = drm_read,
-       .llseek         = no_llseek,
-       .mmap           = drm_gem_cma_mmap,
-};
-EXPORT_SYMBOL(tinydrm_fops);
-
  static struct drm_framebuffer *
  tinydrm_fb_create(struct drm_device *drm, struct drm_file *file_priv,
                  const struct drm_mode_fb_cmd2 *mode_cmd)
diff --git a/drivers/gpu/drm/tinydrm/mi0283qt.c 
b/drivers/gpu/drm/tinydrm/mi0283qt.c
index b29fe86..fdca37a 100644
--- a/drivers/gpu/drm/tinydrm/mi0283qt.c
+++ b/drivers/gpu/drm/tinydrm/mi0283qt.c
@@ -132,9 +132,22 @@ static const struct drm_display_mode mi0283qt_mode = {
        TINYDRM_MODE(320, 240, 58, 43),
  };
+static const struct file_operations mi0283qt_fops = {
+       .owner          = THIS_MODULE,
+       .open           = drm_open,
+       .release        = drm_release,
+       .unlocked_ioctl = drm_ioctl,
+       .compat_ioctl   = drm_compat_ioctl,
+       .poll           = drm_poll,
+       .read           = drm_read,
+       .llseek         = no_llseek,
+       .mmap           = drm_gem_cma_mmap,
+};
And then you could use the shiny new DECLARE_DRM_GEM_CMA_FOPS here!

Can you pls respin on top of drm-misc-next?

Sure, I thought I neeeded to fix this in 4.11 first.

Noralf.

Thanks, Daniel

+
  static struct drm_driver mi0283qt_driver = {
        .driver_features        = DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME |
                                  DRIVER_ATOMIC,
+       .fops                   = &mi0283qt_fops,
        TINYDRM_GEM_DRIVER_OPS,
        .lastclose              = tinydrm_lastclose,
        .debugfs_init           = mipi_dbi_debugfs_init,
diff --git a/include/drm/tinydrm/tinydrm.h b/include/drm/tinydrm/tinydrm.h
index cf9ca20..00b800d 100644
--- a/include/drm/tinydrm/tinydrm.h
+++ b/include/drm/tinydrm/tinydrm.h
@@ -58,8 +58,7 @@ pipe_to_tinydrm(struct drm_simple_display_pipe *pipe)
        .gem_prime_mmap         = drm_gem_cma_prime_mmap, \
        .dumb_create            = drm_gem_cma_dumb_create, \
        .dumb_map_offset        = drm_gem_cma_dumb_map_offset, \
-       .dumb_destroy           = drm_gem_dumb_destroy, \
-       .fops                   = &tinydrm_fops
+       .dumb_destroy           = drm_gem_dumb_destroy
/**
   * TINYDRM_MODE - tinydrm display mode
@@ -84,7 +83,6 @@ pipe_to_tinydrm(struct drm_simple_display_pipe *pipe)
        .type = DRM_MODE_TYPE_DRIVER, \
        .clock = 1 /* pass validation */
-extern const struct file_operations tinydrm_fops;
  void tinydrm_lastclose(struct drm_device *drm);
  void tinydrm_gem_cma_free_object(struct drm_gem_object *gem_obj);
  struct drm_gem_object *
--
2.10.2

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