diff mbox series

[1/3] net: dsa: rzn1-a5psw: use a5psw_reg_rmw() to modify flooding resolution

Message ID 20230208160453.325783-2-clement.leger@bootlin.com (mailing list archive)
State Changes Requested
Delegated to: Netdev Maintainers
Headers show
Series net: dsa: rzn1-a5psw: add supoport for vlan and .port_bridge_flags | expand

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netdev/tree_selection success Guessed tree name to be net-next
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netdev/cover_letter success Series has a cover letter
netdev/patch_count success Link
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
netdev/cc_maintainers success CCed 10 of 10 maintainers
netdev/build_clang success Errors and warnings before: 0 this patch: 0
netdev/module_param success Was 0 now: 0
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 0 this patch: 0
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 31 lines checked
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netdev/source_inline success Was 0 now: 0

Commit Message

Clément Léger Feb. 8, 2023, 4:04 p.m. UTC 
.port_bridge_flags will be added and allows to modify the flood mask
independently for each port. Keeping the existing bridged_ports write
in a5psw_flooding_set_resolution() would potentially messed up this.
Use a read-modify-write to set that value and move bridged_ports
handling in bridge_port_join/leave.

Signed-off-by: Clément Léger <clement.leger@bootlin.com>
---
 drivers/net/dsa/rzn1_a5psw.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/dsa/rzn1_a5psw.c b/drivers/net/dsa/rzn1_a5psw.c
index 919027cf2012..8b7d4a371f8b 100644
--- a/drivers/net/dsa/rzn1_a5psw.c
+++ b/drivers/net/dsa/rzn1_a5psw.c
@@ -299,13 +299,9 @@  static void a5psw_flooding_set_resolution(struct a5psw *a5psw, int port,
 			A5PSW_MCAST_DEF_MASK};
 	int i;
 
-	if (set)
-		a5psw->bridged_ports |= BIT(port);
-	else
-		a5psw->bridged_ports &= ~BIT(port);
-
 	for (i = 0; i < ARRAY_SIZE(offsets); i++)
-		a5psw_reg_writel(a5psw, offsets[i], a5psw->bridged_ports);
+		a5psw_reg_rmw(a5psw, offsets[i], BIT(port),
+			      set ? BIT(port) : 0);
 }
 
 static int a5psw_port_bridge_join(struct dsa_switch *ds, int port,
@@ -326,6 +322,8 @@  static int a5psw_port_bridge_join(struct dsa_switch *ds, int port,
 	a5psw_flooding_set_resolution(a5psw, port, true);
 	a5psw_port_mgmtfwd_set(a5psw, port, false);
 
+	a5psw->bridged_ports |= BIT(port);
+
 	return 0;
 }
 
@@ -334,6 +332,8 @@  static void a5psw_port_bridge_leave(struct dsa_switch *ds, int port,
 {
 	struct a5psw *a5psw = ds->priv;
 
+	a5psw->bridged_ports &= ~BIT(port);
+
 	a5psw_flooding_set_resolution(a5psw, port, false);
 	a5psw_port_mgmtfwd_set(a5psw, port, true);