git: 0c6468d6301f - stable/15 - em: remove M_HASHTYPE when RSS is not enabled

The branch stable/15 has been updated by kbowling:

URL: https://cgit.FreeBSD.org/src/commit/?id=0c6468d6301fe6920db71ade10645d0ff7999f69

commit 0c6468d6301fe6920db71ade10645d0ff7999f69
Author:     Cheng Cui <cc@FreeBSD.org>
AuthorDate: 2026-02-05 21:12:15 +0000
Commit:     Kevin Bowling <kbowling@FreeBSD.org>
CommitDate: 2026-10-29 06:54:44 +0000

    em: remove M_HASHTYPE when RSS is not enabled
    
    Summary:
    Since "73fe85e486d2 tcp: store flowid info in syncache", inp_flowid can be set
    if the incoming packet is not M_HASHTYPE_NONE. But this can introduce dummy
    and duplicated flowid when a virtual interface set M_HASHTYPE_OPAQUE. This
    change will let the upper layer know how to deal with software hash, with
    benefits like inp_flowid can be set correctly and m_pkthdr.flowid can be set
    correctly in output path.
    
    This fix is similar to "20285cad7a55"
    
    Reviewed by: kbowling
    Differential Revision: https://reviews.freebsd.org/D55137
    
    (cherry picked from commit efcc0423d80e4048e11e997abc46bd0343537e1b)
---
 sys/dev/e1000/em_txrx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sys/dev/e1000/em_txrx.c b/sys/dev/e1000/em_txrx.c
index b2a877281e68..927dd9df8cb9 100644
--- a/sys/dev/e1000/em_txrx.c
+++ b/sys/dev/e1000/em_txrx.c
@@ -867,6 +867,6 @@ em_determine_rsstype(uint32_t pkt_info)
 	case E1000_RXDADV_RSSTYPE_IPV6_UDP_EX:
 		return M_HASHTYPE_RSS_UDP_IPV6_EX;
 	default:
-		return M_HASHTYPE_OPAQUE;
+		return M_HASHTYPE_NONE;
 	}
 }