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drm/i915/gvt: Remove unnecessary check in reg_is_mmio

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The reg >= 0 check in reg_is_mmio is unnecessary because reg is always
greater than zero in all current use cases.  This is obvious when
checking 'offset' by itself (as offset is defined as an unsigned
integer), but it's also true for the offset + bytes - 1 use case in
intel_vgpu_emulate_mmio_read because bytes > 0.

Signed-off-by: Jonathan Cavitt <jonathan.cavitt@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Reviewed-by: Zhenyu Wang <zhenyuw.linux@gmail.com>
Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
Link: https://lore.kernel.org/r/20250916174317.76521-5-jonathan.cavitt@intel.com
This commit is contained in:
Jonathan Cavitt 2025-09-16 17:43:19 +00:00 committed by Andi Shyti
parent 7a356ee5cf
commit f80fb92174
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/i915/gvt/mmio.c
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@ -58,7 +58,7 @@ int intel_vgpu_gpa_to_mmio_offset(struct intel_vgpu *vgpu, u64 gpa)
}
#define reg_is_mmio(gvt, reg) \
(reg >= 0 && reg < gvt->device_info.mmio_size)
(reg < gvt->device_info.mmio_size)
#define reg_is_gtt(gvt, reg) \
(reg >= gvt->device_info.gtt_start_offset \