Messages in this thread | | | From | "Tian, Kevin" <> | Subject | RE: [patch 08/20] genirq/msi: Make MSI descriptor iterators device domain aware | Date | Fri, 18 Nov 2022 07:57:01 +0000 |
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> From: Thomas Gleixner <tglx@linutronix.de> > Sent: Friday, November 11, 2022 9:57 PM > > +/* Invalid XA index which is outside of any searchable range */ > +#define MSI_XA_MAX_INDEX (ULONG_MAX - 1) > +#define MSI_XA_DOMAIN_SIZE (MSI_MAX_INDEX + 1) > +
Out of curiosity. Other places treat MSI_MAX_INDEX - 1 as the upper bound of a valid range. This size definition here implies that the last ID is wasted for every domain. Is it intended?
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