On 29/01/15 00:43, Arnd Bergmann wrote: >>From f391eb37fafc8a22d7fd9574b8d220f0d90a91d0 Mon Sep 17 00:00:00 2001 > From: Arnd Bergmann <arnd@xxxxxxxx> > Date: Mon, 25 Aug 2014 16:24:41 +0200 > Subject: [PATCH] mm: export "high_memory" symbol on !MMU > > The symbol 'high_memory' is provided on both MMU- and NOMMU-kernels, > but only one of them is exported, which leads to module build errors > in drivers that work fine built-in: > > ERROR: "high_memory" [drivers/net/virtio_net.ko] undefined! > ERROR: "high_memory" [drivers/net/ppp/ppp_mppe.ko] undefined! > ERROR: "high_memory" [drivers/mtd/nand/nand.ko] undefined! > ERROR: "high_memory" [crypto/tcrypt.ko] undefined! > ERROR: "high_memory" [crypto/cts.ko] undefined! > > This exports the symbol to get these to work on NOMMU as well. > > Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> Here is an ack if you want one: Acked-by: Greg Ungerer <gerg@xxxxxxxxxxx> Regards Greg > diff --git a/mm/nommu.c b/mm/nommu.c > index e9228cbe46de..7bdeb281ad0e 100644 > --- a/mm/nommu.c > +++ b/mm/nommu.c > @@ -59,6 +59,7 @@ > #endif > > void *high_memory; > +EXPORT_SYMBOL(high_memory); > struct page *mem_map; > unsigned long max_mapnr; > unsigned long highest_memmap_pfn; > > -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>