diff mbox series

[net-next] net: tulip: winbond-840: fix build for UML

Message ID 20211014050606.7288-1-rdunlap@infradead.org (mailing list archive)
State Accepted
Commit a3d708925fcca1a2f7219bc9ce93e6341f85c1e0
Delegated to: Netdev Maintainers
Headers show
Series [net-next] net: tulip: winbond-840: fix build for UML | expand

Checks

Context Check Description
netdev/cover_letter success Single patches do not need cover letters
netdev/fixes_present success Fixes tag not required for -next series
netdev/patch_count success Link
netdev/tree_selection success Clearly marked for net-next
netdev/subject_prefix success Link
netdev/cc_maintainers fail 1 blamed authors not CCed: johannes.berg@intel.com; 5 maintainers not CCed: arnd@arndb.de johannes.berg@intel.com weiyongjun1@huawei.com tanghui20@huawei.com wanghai38@huawei.com
netdev/source_inline success Was 0 now: 0
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/module_param success Was 0 now: 0
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/verify_fixes success Fixes tag looks correct
netdev/checkpatch warning CHECK: architecture specific defines should be avoided WARNING: space prohibited between function name and open parenthesis '('
netdev/build_allmodconfig_warn success Errors and warnings before: 0 this patch: 0
netdev/header_inline success No static functions without inline keyword in header files

Commit Message

Randy Dunlap Oct. 14, 2021, 5:06 a.m. UTC
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(-)

Comments

patchwork-bot+netdevbpf@kernel.org Oct. 15, 2021, 2:30 a.m. UTC | #1
Hello:

This patch was applied to netdev/net-next.git (master)
by Jakub Kicinski <kuba@kernel.org>:

On Wed, 13 Oct 2021 22:06:06 -0700 you wrote:
> 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:
> 
> [...]

Here is the summary with links:
  - [net-next] net: tulip: winbond-840: fix build for UML
    https://git.kernel.org/netdev/net-next/c/a3d708925fcc

You are awesome, thank you!
--
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diff mbox series

Patch

--- 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;