From: Arnd Bergmann <arnd@kernel.org>
To: "K. Y. Srinivasan" <kys@microsoft.com>,
Haiyang Zhang <haiyangz@microsoft.com>,
Stephen Hemminger <sthemmin@microsoft.com>,
Wei Liu <wei.liu@kernel.org>, Dexuan Cui <decui@microsoft.com>,
"David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>,
Shachar Raindel <shacharr@microsoft.com>,
linux-hyperv@vger.kernel.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH] net: mana: fix PCI_HYPERV dependency
Date: Thu, 22 Apr 2021 15:34:34 +0200 [thread overview]
Message-ID: <20210422133444.1793327-1-arnd@kernel.org> (raw)
From: Arnd Bergmann <arnd@arndb.de>
The MANA driver causes a build failure in some configurations when
it selects an unavailable symbol:
WARNING: unmet direct dependencies detected for PCI_HYPERV
Depends on [n]: PCI [=y] && X86_64 [=y] && HYPERV [=n] && PCI_MSI [=y] && PCI_MSI_IRQ_DOMAIN [=y] && SYSFS [=y]
Selected by [y]:
- MICROSOFT_MANA [=y] && NETDEVICES [=y] && ETHERNET [=y] && NET_VENDOR_MICROSOFT [=y] && PCI_MSI [=y] && X86_64 [=y]
drivers/pci/controller/pci-hyperv.c: In function 'hv_irq_unmask':
drivers/pci/controller/pci-hyperv.c:1217:9: error: implicit declaration of function 'hv_set_msi_entry_from_desc' [-Werror=implicit-function-declaration]
1217 | hv_set_msi_entry_from_desc(¶ms->int_entry.msi_entry, msi_desc);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
A PCI driver should never depend on a particular host bridge
implementation in the first place, but if we have this dependency
it's better to express it as a 'depends on' rather than 'select'.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
drivers/net/ethernet/microsoft/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/microsoft/Kconfig b/drivers/net/ethernet/microsoft/Kconfig
index e1ac0a5d808d..fe4e7a7d9c0b 100644
--- a/drivers/net/ethernet/microsoft/Kconfig
+++ b/drivers/net/ethernet/microsoft/Kconfig
@@ -18,7 +18,7 @@ if NET_VENDOR_MICROSOFT
config MICROSOFT_MANA
tristate "Microsoft Azure Network Adapter (MANA) support"
depends on PCI_MSI && X86_64
- select PCI_HYPERV
+ depends on PCI_HYPERV
help
This driver supports Microsoft Azure Network Adapter (MANA).
So far, the driver is only supported on X86_64.
--
2.29.2
next reply other threads:[~2021-04-22 13:34 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-22 13:34 Arnd Bergmann [this message]
2021-04-22 17:27 ` [PATCH] net: mana: fix PCI_HYPERV dependency Dexuan Cui
2021-04-22 20:30 ` patchwork-bot+netdevbpf
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