[Intel-gfx] [PATCH 2/4] drm/i915/uncore: cast iomem to avoid sparse warning
Jani Nikula
jani.nikula at intel.com
Tue Feb 7 12:40:24 UTC 2023
drmm_add_action_or_reset() is unaware of __iomem and the pointer needs
to be a plain void *. Cast __iomem away and back while the pointer goes
through drmm.
drivers/gpu/drm/i915/intel_uncore.c:2463:17: warning: incorrect type in argument 1 (different address spaces)
drivers/gpu/drm/i915/intel_uncore.c:2463:17: expected void volatile [noderef] __iomem *addr
drivers/gpu/drm/i915/intel_uncore.c:2463:17: got void *regs
drivers/gpu/drm/i915/intel_uncore.c:2494:16: warning: incorrect type in argument 3 (different address spaces)
drivers/gpu/drm/i915/intel_uncore.c:2494:16: expected void *data
drivers/gpu/drm/i915/intel_uncore.c:2494:16: got void [noderef] __iomem *regs
Cc: Matt Roper <matthew.d.roper at intel.com>
Signed-off-by: Jani Nikula <jani.nikula at intel.com>
---
drivers/gpu/drm/i915/intel_uncore.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c
index 8dee9e62a73e..f018da7ebaac 100644
--- a/drivers/gpu/drm/i915/intel_uncore.c
+++ b/drivers/gpu/drm/i915/intel_uncore.c
@@ -2460,7 +2460,7 @@ static int i915_pmic_bus_access_notifier(struct notifier_block *nb,
static void uncore_unmap_mmio(struct drm_device *drm, void *regs)
{
- iounmap(regs);
+ iounmap((void __iomem *)regs);
}
int intel_uncore_setup_mmio(struct intel_uncore *uncore, phys_addr_t phys_addr)
@@ -2491,7 +2491,8 @@ int intel_uncore_setup_mmio(struct intel_uncore *uncore, phys_addr_t phys_addr)
return -EIO;
}
- return drmm_add_action_or_reset(&i915->drm, uncore_unmap_mmio, uncore->regs);
+ return drmm_add_action_or_reset(&i915->drm, uncore_unmap_mmio,
+ (void __force *)uncore->regs);
}
void intel_uncore_init_early(struct intel_uncore *uncore,
--
2.34.1
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