netdev - [PATCH net-next] net: arcnet: remove code depending on nonexistent config option

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Message-ID: <20260209025442.50987-1-enelsonmoore@gmail.com>
Date: Sun,  8 Feb 2026 18:54:41 -0800
From: Ethan Nelson-Moore <enelsonmoore@...il.com>
To: netdev@...r.kernel.org
Cc: Ethan Nelson-Moore <enelsonmoore@...il.com>,
	Michael Grzeschik <m.grzeschik@...gutronix.de>,
	Andrew Lunn <andrew+netdev@...n.ch>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>
Subject: [PATCH net-next] net: arcnet: remove code depending on nonexistent config option

The CONFIG_SA1100_CT6001 option has never existed in the kernel. Remove
code in arcdevice.h referring to it. This allows the
arcnet_(in|out)(s|)b macros to be simplified by removing the BUS_ALIGN
macro.

Signed-off-by: Ethan Nelson-Moore <enelsonmoore@...il.com>
---
 drivers/net/arcnet/arcdevice.h | 15 ++++-----------
 1 file changed, 4 insertions(+), 11 deletions(-)

diff --git a/drivers/net/arcnet/arcdevice.h b/drivers/net/arcnet/arcdevice.h
index bee60b377d7c..6a5af0943567 100644
--- a/drivers/net/arcnet/arcdevice.h
+++ b/drivers/net/arcnet/arcdevice.h
@@ -374,24 +374,17 @@ static inline void arcnet_set_addr(struct net_device *dev, u8 addr)
 
 /* I/O equivalents */
 
-#ifdef CONFIG_SA1100_CT6001
-#define BUS_ALIGN  2  /* 8 bit device on a 16 bit bus - needs padding */
-#else
-#define BUS_ALIGN  1
-#endif
-
 /* addr and offset allow register like names to define the actual IO  address.
- * A configuration option multiplies the offset for alignment.
  */
 #define arcnet_inb(addr, offset)					\
-	inb((addr) + BUS_ALIGN * (offset))
+	inb((addr) + (offset))
 #define arcnet_outb(value, addr, offset)				\
-	outb(value, (addr) + BUS_ALIGN * (offset))
+	outb(value, (addr) + (offset))
 
 #define arcnet_insb(addr, offset, buffer, count)			\
-	insb((addr) + BUS_ALIGN * (offset), buffer, count)
+	insb((addr) + (offset), buffer, count)
 #define arcnet_outsb(addr, offset, buffer, count)			\
-	outsb((addr) + BUS_ALIGN * (offset), buffer, count)
+	outsb((addr) + (offset), buffer, count)
 
 #define arcnet_readb(addr, offset)					\
 	readb((addr) + (offset))
-- 
2.43.0