Messages in this thread | | | From | Christophe Leroy <> | Subject | Re: 回复: [PATCH 2/2] uio:powerpc:mpc85xx: l2-cache-sram uio driver implementation | Date | Tue, 14 Jun 2022 07:18:48 +0000 |
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Le 14/06/2022 à 08:09, Wenhu Wang a écrit : >>> +static const struct vm_operations_struct uio_cache_sram_vm_ops = { >>> +#ifdef CONFIG_HAVE_IOREMAP_PROT >> >> Same here. >> > > I tried to eliminate it in mainline > See: [PATCH v2] mm: eliminate ifdef of HAVE_IOREMAP_PROT in .c files > https://lkml.org/lkml/2022/6/10/695 >
I looked at that patch.
I don't think you can just drop the #ifdef in function __access_remote_vm() in mm/memory.c
You have to replace it with something like:
if (!IS_ENABLED(CONFIG_HAVE_IOREMAP_PROT)) break;
Christophe
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