On Tue, 11 Jul 2023, zhangshida <starzhangzsd@xxxxxxxxx> wrote:
> From: Shida Zhang <zhangshida@xxxxxxxxxx>
>
> Quiet down this gcc warning generated by
> gcc (Debian 10.2.1-6) 10.2.1 20210110:
>
> ../drivers/gpu/drm/i915/soc/intel_gmch.c: In function ‘intel_alloc_mchbar_resource’:
> ../drivers/gpu/drm/i915/soc/intel_gmch.c:41:6: error: variable ‘mchbar_addr’ set but not used [-Werror=unused-but-set-variable]
> 41 | u64 mchbar_addr;
> | ^~~~~~~~~~~
>
> Reported-by: k2ci <kernel-bot@xxxxxxxxxx>
> Signed-off-by: Shida Zhang <zhangshida@xxxxxxxxxx>
Thanks, but this is already fixed by commit b02a9a0c6cb3
("drm/i915/gmch: avoid unused variable warning").
BR,
Jani.
> ---
> drivers/gpu/drm/i915/soc/intel_gmch.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/soc/intel_gmch.c b/drivers/gpu/drm/i915/soc/intel_gmch.c
> index 6d0204942f7a..f7db6cb3f828 100644
> --- a/drivers/gpu/drm/i915/soc/intel_gmch.c
> +++ b/drivers/gpu/drm/i915/soc/intel_gmch.c
> @@ -38,16 +38,18 @@ intel_alloc_mchbar_resource(struct drm_i915_private *i915)
> {
> int reg = GRAPHICS_VER(i915) >= 4 ? MCHBAR_I965 : MCHBAR_I915;
> u32 temp_lo, temp_hi = 0;
> +#ifdef CONFIG_PNP
> u64 mchbar_addr;
> +#endif
> int ret;
>
> if (GRAPHICS_VER(i915) >= 4)
> pci_read_config_dword(i915->gmch.pdev, reg + 4, &temp_hi);
> pci_read_config_dword(i915->gmch.pdev, reg, &temp_lo);
> - mchbar_addr = ((u64)temp_hi << 32) | temp_lo;
>
> /* If ACPI doesn't have it, assume we need to allocate it ourselves */
> #ifdef CONFIG_PNP
> + mchbar_addr = ((u64)temp_hi << 32) | temp_lo;
> if (mchbar_addr &&
> pnp_range_reserved(mchbar_addr, mchbar_addr + MCHBAR_SIZE))
> return 0;
--
Jani Nikula, Intel Open Source Graphics Center
