Tianyang! On Fri, Mar 22 2024 at 18:14, Tianyang Zhang wrote: Please do not top-post. See the 'Top-posting' chapter in: https://people.kernel.org/tglx/notes-about-netiquette > Regarding "WHY", my understanding is that a convincing reason is needed > to explain the necessity of this patch. Yes. > If so, can the last paragraph "This will be more conducive to fully > utilizing existing vectors to support more devices." > > be considered a simple explanation? Kinda, but ideally you describe it in a way that there is context for the reader. Like this: The fixed mapping between the LS7A interrupt source and the HT interrupt vector prevents the utilization of the full interrupt vector space which limits the number of devices in a system Replace the fixed mapping with a dynamic mapping which allocates a vector when an interrupt source is set up. This avoids that unused sources prevent vectors from being used for other devices. See? Thanks, tglx
