scripts/coccinelle/api/drm-get-put.cocci

   1 // SPDX-License-Identifier: GPL-2.0
   2 ///
   3 /// Use drm_*_get() and drm_*_put() helpers instead of drm_*_reference() and
   4 /// drm_*_unreference() helpers.
   5 ///
   6 // Confidence: High
   7 // Copyright: (C) 2017 NVIDIA Corporation
   8 // Options: --no-includes --include-headers
   9 //
  10
  11 virtual patch
  12 virtual report
  13
  14 @depends on patch@
  15 expression object;
  16 @@
  17
  18 (
  19 - drm_connector_reference(object)
  20 + drm_connector_get(object)
  21 |
  22 - drm_connector_unreference(object)
  23 + drm_connector_put(object)
  24 |
  25 - drm_framebuffer_reference(object)
  26 + drm_framebuffer_get(object)
  27 |
  28 - drm_framebuffer_unreference(object)
  29 + drm_framebuffer_put(object)
  30 |
  31 - drm_gem_object_reference(object)
  32 + drm_gem_object_get(object)
  33 |
  34 - drm_gem_object_unreference(object)
  35 + drm_gem_object_put(object)
  36 |
  37 - __drm_gem_object_unreference(object)
  38 + __drm_gem_object_put(object)
  39 |
  40 - drm_gem_object_unreference_unlocked(object)
  41 + drm_gem_object_put_unlocked(object)
  42 |
  43 - drm_dev_unref(object)
  44 + drm_dev_put(object)
  45 )
  46
  47 @r depends on report@
  48 expression object;
  49 position p;
  50 @@
  51
  52 (
  53 drm_connector_unreference@p(object)
  54 |
  55 drm_connector_reference@p(object)
  56 |
  57 drm_framebuffer_unreference@p(object)
  58 |
  59 drm_framebuffer_reference@p(object)
  60 |
  61 drm_gem_object_unreference@p(object)
  62 |
  63 drm_gem_object_reference@p(object)
  64 |
  65 __drm_gem_object_unreference(object)
  66 |
  67 drm_gem_object_unreference_unlocked(object)
  68 |
  69 drm_dev_unref@p(object)
  70 )
  71
  72 @script:python depends on report@
  73 object << r.object;
  74 p << r.p;
  75 @@
  76
  77 msg="WARNING: use get/put helpers to reference and dereference %s" % (object)
  78 coccilib.report.print_report(p[0], msg)