Hi Robin, On Fri, Jan 31, 2020 at 12:46 AM Robin Murphy <robin.mur...@arm.com> wrote: > On 2020-01-30 7:10 pm, Eric Dumazet via iommu wrote: > > Increasing the size of dma_entry_hash size by 327680 bytes > > has reached some bootloaders limitations. > > [ That might warrant some further explanation - I don't quite follow how > this would relate to a bootloader specifically :/ ]
Increasing the size of a static array increases kernel size. Some (all? ;-) bootloaders have limitations on the maximum size of a kernel image they can boot (usually something critical gets overwritten when handling a too large image). While boot loaders can be fixed and upgraded, this is usually much more cumbersome than updating the kernel. Besides, a static array always consumes valuable unswapable memory, even when the feature would not be used (e.g. disabled by a command line option). Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- ge...@linux-m68k.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu