Hi Arnd, On Mon, Jun 12, 2023 at 02:43:59PM +0200, Arnd Bergmann wrote: > From: Arnd Bergmann <arnd@xxxxxxxx> > > When CONFIG_PNP is disabled, the mchbar_addr variable is only written but > not read: > > drivers/gpu/drm/i915/soc/intel_gmch.c: In function 'intel_alloc_mchbar_resource': > drivers/gpu/drm/i915/soc/intel_gmch.c:41:13: error: variable 'mchbar_addr' set but not used [-Werror=unused-but-set-variable] > 41 | u64 mchbar_addr; > | ^~~~~~~~~~~ > > No idea why this showed up now, but it's easy to fix by changing the #ifdef to > an IS_ENABLED() check that the compiler can see through. > > Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> Reviewed-by: Andi Shyti <andi.shyti@xxxxxxxxxxxxxxx> Andi > --- > I saw this last week already, so it's likely that someone else already sent > a fix for it. > > drivers/gpu/drm/i915/soc/intel_gmch.c | 4 +--- > 1 file changed, 1 insertion(+), 3 deletions(-) > > diff --git a/drivers/gpu/drm/i915/soc/intel_gmch.c b/drivers/gpu/drm/i915/soc/intel_gmch.c > index 6d0204942f7a5..49c7fb16e934f 100644 > --- a/drivers/gpu/drm/i915/soc/intel_gmch.c > +++ b/drivers/gpu/drm/i915/soc/intel_gmch.c > @@ -47,11 +47,9 @@ intel_alloc_mchbar_resource(struct drm_i915_private *i915) > mchbar_addr = ((u64)temp_hi << 32) | temp_lo; > > /* If ACPI doesn't have it, assume we need to allocate it ourselves */ > -#ifdef CONFIG_PNP > - if (mchbar_addr && > + if (IS_ENABLED(CONFIG_PNP) && mchbar_addr && > pnp_range_reserved(mchbar_addr, mchbar_addr + MCHBAR_SIZE)) > return 0; > -#endif > > /* Get some space for it */ > i915->gmch.mch_res.name = "i915 MCHBAR"; > -- > 2.39.2 >
