From 944b687491322f5395f47e58707c13abd2cfa3fd Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Thu, 5 Feb 2015 12:25:12 -0800 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 Cc: Kirill A. Shutemov Acked-by: Greg Ungerer Acked-by: David Rientjes Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/nommu.c | 1 + 1 file changed, 1 insertion(+) diff --git a/mm/nommu.c b/mm/nommu.c index b51eadf6d952..28bd8c4dff6f 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; -- 2.34.1