git: d9ae618c0816 - main - [rtwn] don't send NULL data frames if we're compiled with firmware enabled

[Adrian Chadd]

The branch main has been updated by adrian:

URL: 
https://cgit.FreeBSD.org/src/commit/?id=d9ae618c0816d24bc8127e479db5787c97a23140

commit d9ae618c0816d24bc8127e479db5787c97a23140
Author:     Adrian Chadd <adr...@freebsd.org>
AuthorDate: 2025-08-27 17:04:39 +0000
Commit:     Adrian Chadd <adr...@freebsd.org>
CommitDate: 2025-09-20 00:44:19 +0000

    [rtwn] don't send NULL data frames if we're compiled with firmware enabled
    
    the firmware should be sending these.
    
    Differential Revision:  https://reviews.freebsd.org/D52298
    Reviewed by: bz
    
    Locally tested:
    
    * rtl8821/rtl8812au (STA)
---
 sys/dev/rtwn/if_rtwn.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/sys/dev/rtwn/if_rtwn.c b/sys/dev/rtwn/if_rtwn.c
index 25287f222270..c5889937fb08 100644
--- a/sys/dev/rtwn/if_rtwn.c
+++ b/sys/dev/rtwn/if_rtwn.c
@@ -271,6 +271,11 @@ rtwn_attach(struct rtwn_softc *sc)
        /* Enable seqno offload */
        ic->ic_flags_ext |= IEEE80211_FEXT_SEQNO_OFFLOAD;
 
+#ifdef RTWN_WITHOUT_UCODE
+       /* Don't originate NULL data frames - let firmware do this */
+       ic->ic_flags_ext |= IEEE80211_FEXT_NO_NULLDATA;
+#endif
+
        /* Adjust capabilities. */
        rtwn_adj_devcaps(sc);