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authorEd Maste <emaste@FreeBSD.org>2024-01-29 14:25:40 +0000
committerEd Maste <emaste@FreeBSD.org>2024-01-29 16:40:17 +0000
commit7e77089dccd702eb767350a8bd3d20102c4fb591 (patch)
tree95abb9da52946b8c8ece6349978ed02801cbe095
parent5086b6ec32d5c82c3d0894eb7bd74a9b81480644 (diff)
linuxkpi: remove invalid KASSERT from hash_add_rcu
hash_add_rcu asserted that the node's prev pointer was NULL in an attempt to detect addition of a node already on a list, but the caller is not required to provide a zeroed node. Reported in https://github.com/freebsd/drm-kmod/issues/282 Reviewed by: bz, manu Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D43645
-rw-r--r--sys/compat/linuxkpi/common/include/linux/hashtable.h2
1 files changed, 0 insertions, 2 deletions
diff --git a/sys/compat/linuxkpi/common/include/linux/hashtable.h b/sys/compat/linuxkpi/common/include/linux/hashtable.h
index 5703d6282ad7..55755c354959 100644
--- a/sys/compat/linuxkpi/common/include/linux/hashtable.h
+++ b/sys/compat/linuxkpi/common/include/linux/hashtable.h
@@ -92,8 +92,6 @@ __hash_node_type_assert(struct hlist_node *node)
#define hash_add_rcu(ht, node, key) do { \
struct lkpi_hash_head *__head = &(ht)[hash_min(key, HASH_BITS(ht))]; \
__hash_node_type_assert(node); \
- KASSERT(((struct lkpi_hash_entry *)(node))->entry.cle_prev == NULL, \
- ("node is already on list or was not zeroed")); \
CK_LIST_INSERT_HEAD(&__head->head, \
(struct lkpi_hash_entry *)(node), entry); \
} while (0)