[PATCH v2] include/linux/vfio.h: Guard powerpc-specific functions with CONFIG_VFIO_SPAPR_EEH
Murilo Opsfelder Araújo
mopsfelder at gmail.com
Tue Jul 25 23:56:38 AEST 2017
On 07/18/2017 02:22 PM, Murilo Opsfelder Araujo wrote:
> When CONFIG_EEH=y and CONFIG_VFIO_SPAPR_EEH=n, build fails with the
> drivers/vfio/pci/vfio_pci.o: In function `.vfio_pci_release':
> vfio_pci.c:(.text+0xa98): undefined reference to `.vfio_spapr_pci_eeh_release'
> drivers/vfio/pci/vfio_pci.o: In function `.vfio_pci_open':
> vfio_pci.c:(.text+0x1420): undefined reference to `.vfio_spapr_pci_eeh_open'
> In this case, vfio_pci.c should use the empty definitions of
> vfio_spapr_pci_eeh_open and vfio_spapr_pci_eeh_release functions.
> This patch fixes it by guarding these function definitions with
> CONFIG_VFIO_SPAPR_EEH, the symbol that controls whether vfio_spapr_eeh.c is
> built, which is where the non-empty versions of these functions are. We need to
> make use of IS_ENABLED() macro because CONFIG_VFIO_SPAPR_EEH is a tristate
> This issue was found during a randconfig build. Logs are here:
> Signed-off-by: Murilo Opsfelder Araujo <mopsfelder at gmail.com>
> Changes from v1:
> - Rebased on top of next-20170718.
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