summaryrefslogtreecommitdiff
path: root/kernel/dma/debug.c
diff options
context:
space:
mode:
authorWolfram Sang <wsa@kernel.org>2022-09-16 20:42:18 +0100
committerWolfram Sang <wsa@kernel.org>2022-09-16 20:42:18 +0100
commitd819524d3144f4703f45f473fdc85ad7579ae94c (patch)
tree9bcb29b9b1a24ecf5a1a367c1af7d9be138ba041 /kernel/dma/debug.c
parent859d64685d6c868db62b86064769b053db8bf834 (diff)
parent80e78fcce86de0288793a0ef0f6acf37656ee4cf (diff)
Merge tag 'v6.0-rc5' into i2c/for-mergewindow
Linux 6.0-rc5
Diffstat (limited to 'kernel/dma/debug.c')
-rw-r--r--kernel/dma/debug.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/kernel/dma/debug.c b/kernel/dma/debug.c
index 2caafd13f8aac..18c93c2276cae 100644
--- a/kernel/dma/debug.c
+++ b/kernel/dma/debug.c
@@ -350,11 +350,10 @@ static struct dma_debug_entry *bucket_find_contain(struct hash_bucket **bucket,
unsigned long *flags)
{
- unsigned int max_range = dma_get_max_seg_size(ref->dev);
struct dma_debug_entry *entry, index = *ref;
- unsigned int range = 0;
+ int limit = min(HASH_SIZE, (index.dev_addr >> HASH_FN_SHIFT) + 1);
- while (range <= max_range) {
+ for (int i = 0; i < limit; i++) {
entry = __hash_bucket_find(*bucket, ref, containing_match);
if (entry)
@@ -364,7 +363,6 @@ static struct dma_debug_entry *bucket_find_contain(struct hash_bucket **bucket,
* Nothing found, go back a hash bucket
*/
put_hash_bucket(*bucket, *flags);
- range += (1 << HASH_FN_SHIFT);
index.dev_addr -= (1 << HASH_FN_SHIFT);
*bucket = get_hash_bucket(&index, flags);
}