From 5652137ef6536d3f5c154e38682bebafe2454048 Mon Sep 17 00:00:00 2001
From: Randy Dunlap <rdunlap@infradead.org>
Date: Wed, 13 Oct 2021 22:06:06 -0700
Subject: [PATCH] net: tulip: winbond-840: fix build for UML
Mime-version: 1.0
Content-type: text/plain; charset=UTF-8
Content-transfer-encoding: 8bit
Git-commit: a3d708925fcca1a2f7219bc9ce93e6341f85c1e0
Patch-mainline: v5.16-rc1
References: stable-5.14.19
[ Upstream commit a3d708925fcca1a2f7219bc9ce93e6341f85c1e0 ]
On i386, when builtin (not a loadable module), the winbond-840 driver
inspects boot_cpu_data to see what CPU family it is running on, and
then acts on that data. The "family" struct member (x86) does not exist
when running on UML, so prevent that test and do the default action.
Prevents this build error on UML + i386:
../drivers/net/ethernet/dec/tulip/winbond-840.c: In function ‘init_registers’:
../drivers/net/ethernet/dec/tulip/winbond-840.c:882:19: error: ‘struct cpuinfo_um’ has no member named ‘x86’
if (boot_cpu_data.x86 <= 4) {
Fixes: 68f5d3f3b654 ("um: add PCI over virtio emulation driver")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: linux-um@lists.infradead.org
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Link: https://lore.kernel.org/r/20211014050606.7288-1-rdunlap@infradead.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/net/ethernet/dec/tulip/winbond-840.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/dec/tulip/winbond-840.c b/drivers/net/ethernet/dec/tulip/winbond-840.c
index 1876f15dd827..1bd76dd97537 100644
--- a/drivers/net/ethernet/dec/tulip/winbond-840.c
+++ b/drivers/net/ethernet/dec/tulip/winbond-840.c
@@ -877,7 +877,7 @@ static void init_registers(struct net_device *dev)
8000 16 longwords 0200 2 longwords 2000 32 longwords
C000 32 longwords 0400 4 longwords */
-#if defined (__i386__) && !defined(MODULE)
+#if defined (__i386__) && !defined(MODULE) && !defined(CONFIG_UML)
/* When not a module we can work around broken '486 PCI boards. */
if (boot_cpu_data.x86 <= 4) {
i |= 0x4800;
--
2.26.2