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-rw-r--r--kernel/printk/printk_ringbuffer.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/kernel/printk/printk_ringbuffer.c b/kernel/printk/printk_ringbuffer.c
index 664552cb931c..195e6f4d4df6 100644
--- a/kernel/printk/printk_ringbuffer.c
+++ b/kernel/printk/printk_ringbuffer.c
@@ -266,6 +266,8 @@
/* Determine if a logical position refers to a data-less block. */
#define LPOS_DATALESS(lpos) ((lpos) & 1UL)
+#define BLK_DATALESS(blk) (LPOS_DATALESS((blk)->begin) && \
+ LPOS_DATALESS((blk)->next))
/* Get the logical position at index 0 of the current wrap. */
#define DATA_THIS_WRAP_START_LPOS(data_ring, lpos) \
@@ -1038,7 +1040,7 @@ static unsigned int space_used(struct prb_data_ring *data_ring,
struct prb_data_blk_lpos *blk_lpos)
{
/* Data-less blocks take no space. */
- if (LPOS_DATALESS(blk_lpos->begin))
+ if (BLK_DATALESS(blk_lpos))
return 0;
if (DATA_WRAPS(data_ring, blk_lpos->begin) == DATA_WRAPS(data_ring, blk_lpos->next)) {
@@ -1071,7 +1073,7 @@ static const char *get_data(struct prb_data_ring *data_ring,
struct prb_data_block *db;
/* Data-less data block description. */
- if (LPOS_DATALESS(blk_lpos->begin) && LPOS_DATALESS(blk_lpos->next)) {
+ if (BLK_DATALESS(blk_lpos)) {
if (blk_lpos->begin == NO_LPOS && blk_lpos->next == NO_LPOS) {
*data_size = 0;
return "";