From: Randy Dunlap <rdunlap@infradead.org>
To: netdev@vger.kernel.org
Cc: Randy Dunlap <rdunlap@infradead.org>,
linux-um@lists.infradead.org, Jeff Dike <jdike@addtoit.com>,
Richard Weinberger <richard@nod.at>,
Anton Ivanov <anton.ivanov@cambridgegreys.com>,
"David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
linux-parisc@vger.kernel.org
Subject: [PATCH net-next] net: tulip: winbond-840: fix build for UML
Date: Wed, 13 Oct 2021 22:06:06 -0700 [thread overview]
Message-ID: <20211014050606.7288-1-rdunlap@infradead.org> (raw)
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>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: linux-parisc@vger.kernel.org
---
drivers/net/ethernet/dec/tulip/winbond-840.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- linux-next-20211013.orig/drivers/net/ethernet/dec/tulip/winbond-840.c
+++ linux-next-20211013/drivers/net/ethernet/dec/tulip/winbond-840.c
@@ -877,7 +877,7 @@ static void init_registers(struct net_de
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;
WARNING: multiple messages have this Message-ID (diff)
From: Randy Dunlap <rdunlap@infradead.org>
To: netdev@vger.kernel.org
Cc: Randy Dunlap <rdunlap@infradead.org>,
linux-um@lists.infradead.org, Jeff Dike <jdike@addtoit.com>,
Richard Weinberger <richard@nod.at>,
Anton Ivanov <anton.ivanov@cambridgegreys.com>,
"David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
linux-parisc@vger.kernel.org
Subject: [PATCH net-next] net: tulip: winbond-840: fix build for UML
Date: Wed, 13 Oct 2021 22:06:06 -0700 [thread overview]
Message-ID: <20211014050606.7288-1-rdunlap@infradead.org> (raw)
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>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: linux-parisc@vger.kernel.org
---
drivers/net/ethernet/dec/tulip/winbond-840.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- linux-next-20211013.orig/drivers/net/ethernet/dec/tulip/winbond-840.c
+++ linux-next-20211013/drivers/net/ethernet/dec/tulip/winbond-840.c
@@ -877,7 +877,7 @@ static void init_registers(struct net_de
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;
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next reply other threads:[~2021-10-14 5:06 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-14 5:06 Randy Dunlap [this message]
2021-10-14 5:06 ` [PATCH net-next] net: tulip: winbond-840: fix build for UML Randy Dunlap
2021-10-15 2:30 ` patchwork-bot+netdevbpf
2021-10-15 2:30 ` patchwork-bot+netdevbpf
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