On Wednesday, December 16, 2015 04:41:37 PM Eric Anholt wrote: > > --=-=-= > Content-Type: text/plain > > Sudip Mukherjee <[email protected]> writes: > > > If CONFIG_PM_SLEEP is not defined then the functions are defined as > > NULL. And as a result we are getting build failure with > > alpha allmodconfig with the error: > > > > drivers/gpu/drm/vc4/vc4_v3d.c: In function 'vc4_v3d_set_power': > > include/linux/stddef.h:7:14: error: called object is not a function or > > function pointer > > #define NULL ((void *)0) > > ^ > > include/linux/pm.h:776:30: note: in expansion of macro 'NULL' > > #define pm_generic_poweroff NULL > > ^ > > drivers/gpu/drm/vc4/vc4_v3d.c:157:10: note: in expansion of macro > > 'pm_generic_poweroff' > > return pm_generic_poweroff(&vc4->v3d->pdev->dev); > > ^ > > include/linux/stddef.h:7:14: error: called object is not a function or > > function pointer > > #define NULL ((void *)0) > > ^ > > include/linux/pm.h:764:28: note: in expansion of macro 'NULL' > > #define pm_generic_resume NULL > > ^ > > drivers/gpu/drm/vc4/vc4_v3d.c:159:10: note: in expansion of macro > > 'pm_generic_resume' > > return pm_generic_resume(&vc4->v3d->pdev->dev); > > ^ > > > > Fixes: d5b1a78a772f ("drm/vc4: Add support for drawing 3D frames.") > > Cc: Eric Anholt <[email protected]> > > Signed-off-by: Sudip Mukherjee <[email protected]> > > I'm happy with this solution, and would also be willing to just depend > on the config option as well. Whatever people prefer.
These functions are intended to be used as PM callbacks rather than to be called directly from code that doesn't depend on PM_SLEEP, so I'd prefer all code calling them directly to depend on the config option. Thanks, Rafael -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
