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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2022-09-25 09:22:13 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2022-09-25 09:22:13 +0200
commita12c689209185c1ad872723a644d0cd27e52d49c (patch)
tree11c01d147a9241561eb7a3ad5a999e234be2750c /kernel/dma/debug.c
parent4c8928850c9dc5c849ee37d89a79d44a283bdd87 (diff)
parent7e2cd21e02b35483ce8ea88da5732d4d3ec3a6c9 (diff)
downloadlinux-a12c689209185c1ad872723a644d0cd27e52d49c.tar.bz2
Merge 7e2cd21e02b3 ("Merge tag 'tty-6.0-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty") into tty-next
We need the tty fixes and api additions in this branch. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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 2caafd13f8aa..18c93c2276ca 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);
}