On Tue, May 06, 2025 at 10:55:31PM -0700, Kees Cook wrote: > On Wed, May 07, 2025 at 06:47:54AM +0200, Christoph Hellwig wrote: > > On Tue, May 06, 2025 at 08:35:40PM -0700, Kees Cook wrote: > > > The only reason nvme_pci_npages_prp() could be used as a compile-time > > > known result in BUILD_BUG_ON() is because the compiler was always choosing > > > to inline the function. Under special circumstances (sanitizer coverage > > > functions disabled for __init functions on ARCH=um), the compiler decided > > > to stop inlining it: > > > > Can we place just fix um to still force inlining inline functions instead > > of needing these workarounds? > > Oh, I don't have the history here. Is there something about UM and > forcing off inlining?
Maybe I'm misunderstandng your report, but what causes the failure to inline?
