• Pankaj Bharadiya's avatar
    drm/i915/display: Make WARN* drm specific where drm_device ptr is available · f4224a4c
    Pankaj Bharadiya authored
    drm specific WARN* calls include device information in the
    backtrace, so we know what device the warnings originate from.
    
    Covert all the calls of WARN* with device specific drm_WARN*
    variants in functions where drm_device or drm_i915_private struct
    pointer is readily available.
    
    The conversion was done automatically with below coccinelle semantic
    patch. checkpatch errors/warnings are fixed manually.
    
    @rule1@
    identifier func, T;
    @@
    func(...) {
    ...
    struct drm_device *T = ...;
    <...
    (
    -WARN(
    +drm_WARN(T,
    ...)
    |
    -WARN_ON(
    +drm_WARN_ON(T,
    ...)
    |
    -WARN_ONCE(
    +drm_WARN_ONCE(T,
    ...)
    |
    -WARN_ON_ONCE(
    +drm_WARN_ON_ONCE(T,
    ...)
    )
    ...>
    }
    
    @rule2@
    identifier func, T;
    @@
    func(struct drm_device *T,...) {
    <...
    (
    -WARN(
    +drm_WARN(T,
    ...)
    |
    -WARN_ON(
    +drm_WARN_ON(T,
    ...)
    |
    -WARN_ONCE(
    +drm_WARN_ONCE(T,
    ...)
    |
    -WARN_ON_ONCE(
    +drm_WARN_ON_ONCE(T,
    ...)
    )
    ...>
    }
    
    @rule3@
    identifier func, T;
    @@
    func(...) {
    ...
    struct drm_i915_private *T = ...;
    <+...
    (
    -WARN(
    +drm_WARN(&T->drm,
    ...)
    |
    -WARN_ON(
    +drm_WARN_ON(&T->drm,
    ...)
    |
    -WARN_ONCE(
    +drm_WARN_ONCE(&T->drm,
    ...)
    |
    -WARN_ON_ONCE(
    +drm_WARN_ON_ONCE(&T->drm,
    ...)
    )
    ...+>
    }
    
    @rule4@
    identifier func, T;
    @@
    func(struct drm_i915_private *T,...) {
    <+...
    (
    -WARN(
    +drm_WARN(&T->drm,
    ...)
    |
    -WARN_ON(
    +drm_WARN_ON(&T->drm,
    ...)
    |
    -WARN_ONCE(
    +drm_WARN_ONCE(&T->drm,
    ...)
    |
    -WARN_ON_ONCE(
    +drm_WARN_ON_ONCE(&T->drm,
    ...)
    )
    ...+>
    }
    Signed-off-by: default avatarPankaj Bharadiya <pankaj.laxminarayan.bharadiya@intel.com>
    Signed-off-by: default avatarJani Nikula <jani.nikula@intel.com>
    Link: https://patchwork.freedesktop.org/patch/msgid/20200128181603.27767-20-pankaj.laxminarayan.bharadiya@intel.com
    f4224a4c
intel_bw.c 11.6 KB