diff mbox series

[net-next,v3,01/10] genetlink: don't merge dumpit split op for different cmds into single iter

Message ID 20231021112711.660606-2-jiri@resnulli.us (mailing list archive)
State Accepted
Commit f862ed2d0bf0cf51c28c1a69e3c2a1558d5a2978
Delegated to: Netdev Maintainers
Headers show
Series devlink: finish conversion to generated split_ops | expand

Checks

Context Check Description
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Clearly marked for net-next
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 1365 this patch: 1365
netdev/cc_maintainers success CCed 7 of 7 maintainers
netdev/build_clang success Errors and warnings before: 1389 this patch: 1389
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success Fixes tag looks correct
netdev/build_allmodconfig_warn success Errors and warnings before: 1390 this patch: 1390
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 9 lines checked
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Jiri Pirko Oct. 21, 2023, 11:27 a.m. UTC 
From: Jiri Pirko <jiri@nvidia.com>

Currently, split ops of doit and dumpit are merged into a single iter
item when they are subsequent. However, there is no guarantee that the
dumpit op is for the same cmd as doit op.

Fix this by checking if cmd is the same for both.

Fixes: b8fd60c36a44 ("genetlink: allow families to use split ops directly")
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
---
v1->v2:
- removed redundant cnt check
---
 net/netlink/genetlink.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c
index 8315d31b53db..92ef5ed2e7b0 100644
--- a/net/netlink/genetlink.c
+++ b/net/netlink/genetlink.c
@@ -225,7 +225,8 @@  static void genl_op_from_split(struct genl_op_iter *iter)
 	}
 
 	if (i + cnt < family->n_split_ops &&
-	    family->split_ops[i + cnt].flags & GENL_CMD_CAP_DUMP) {
+	    family->split_ops[i + cnt].flags & GENL_CMD_CAP_DUMP &&
+	    (!cnt || family->split_ops[i + cnt].cmd == iter->doit.cmd)) {
 		iter->dumpit = family->split_ops[i + cnt];
 		genl_op_fill_in_reject_policy_split(family, &iter->dumpit);
 		cnt++;