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openSUSE:Leap:15.6:Update
xen.25153
62a99614-IOMMU-x86-gcc12.patch
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File 62a99614-IOMMU-x86-gcc12.patch of Package xen.25153
# Commit 80ad8db8a4d9bb24952f0aea788ce6f47566fa76 # Date 2022-06-15 10:19:32 +0200 # Author Jan Beulich <jbeulich@suse.com> # Committer Jan Beulich <jbeulich@suse.com> IOMMU/x86: work around bogus gcc12 warning in hvm_gsi_eoi() As per [1] the expansion of the pirq_dpci() macro causes a -Waddress controlled warning (enabled implicitly in our builds, if not by default) tying the middle part of the involved conditional expression to the surrounding boolean context. Work around this by introducing a local inline function in the affected source file. Reported-by: Andrew Cooper <andrew.cooper3@citrix.com> Signed-off-by: Jan Beulich <jbeulich@suse.com> Acked-by: Roger Pau Monné <roger.pau@citrix.com> [1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102967 --- a/xen/drivers/passthrough/x86/hvm.c +++ b/xen/drivers/passthrough/x86/hvm.c @@ -25,6 +25,18 @@ #include <asm/hvm/support.h> #include <asm/io_apic.h> +/* + * Gcc12 takes issue with pirq_dpci() being used in boolean context (see gcc + * bug 102967). While we can't replace the macro definition in the header by an + * inline function, we can do so here. + */ +static inline struct hvm_pirq_dpci *_pirq_dpci(struct pirq *pirq) +{ + return pirq_dpci(pirq); +} +#undef pirq_dpci +#define pirq_dpci(pirq) _pirq_dpci(pirq) + static DEFINE_PER_CPU(struct list_head, dpci_list); /*
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