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authorMaarten Lankhorst <maarten.lankhorst@linux.intel.com>2018-04-18 15:51:21 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-07-31 08:28:56 +0300
commitd06e92cfb34eaea6215ebcec55d6270f5657ff3c (patch)
tree82f00976b6b7e7fc332df586a0783f3a35eb41ae /include/drm
parentee4c7168bc43ac9eb9cb3eb9f8af99d1be9a5a50 (diff)
downloadlinux-d06e92cfb34eaea6215ebcec55d6270f5657ff3c.tar.xz
drm/crc: Only report a single overflow when a CRC fd is opened
[ Upstream commit a012024571d98e2e4bf29a9168fb7ddc44b7ab86 ] This reduces the amount of spam when you debug a CRC reading program. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> [mlankhorst: Change bool overflow to was_overflow (Ville)] Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180418125121.72081-1-maarten.lankhorst@linux.intel.com Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include/drm')
-rw-r--r--include/drm/drm_debugfs_crc.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/drm/drm_debugfs_crc.h b/include/drm/drm_debugfs_crc.h
index 7d63b1d4adb9..b225eeb30d05 100644
--- a/include/drm/drm_debugfs_crc.h
+++ b/include/drm/drm_debugfs_crc.h
@@ -43,6 +43,7 @@ struct drm_crtc_crc_entry {
* @lock: protects the fields in this struct
* @source: name of the currently configured source of CRCs
* @opened: whether userspace has opened the data file for reading
+ * @overflow: whether an overflow occured.
* @entries: array of entries, with size of %DRM_CRC_ENTRIES_NR
* @head: head of circular queue
* @tail: tail of circular queue
@@ -52,7 +53,7 @@ struct drm_crtc_crc_entry {
struct drm_crtc_crc {
spinlock_t lock;
const char *source;
- bool opened;
+ bool opened, overflow;
struct drm_crtc_crc_entry *entries;
int head, tail;
size_t values_cnt;