2008/5/12 Martin Michlmayr <tbm@xxxxxxxxxx>: > I get the following build failure on MIPS Malta with 2.6.26-rc1: > > MODPOST 1516 modules > ERROR: "empty_zero_page" [fs/ext4/ext4dev.ko] undefined! > > Any idea? A missing export? Yep. The export is missing. Attached patch was build-tested for a Malta config with ext4 enabled as a module. Dmitri
From cb55ed7d958cf4abb58dd1d6e46e09447b5694b0 Mon Sep 17 00:00:00 2001 From: Dmitri Vorobiev <dmitri.vorobiev@xxxxxxxxx> Date: Mon, 12 May 2008 17:49:19 +0400 Subject: [PATCH 1/1] [MIPS] Export empty_zero_page as a GPL symbol The empty_zero_page symbol is needed for the ext4 driver and should therefore be exported. This fixes the following error reported by Martin Michlmayr: >>>>>>> MODPOST 1516 modules ERROR: "empty_zero_page" [fs/ext4/ext4dev.ko] undefined! >>>>>> Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@xxxxxxxxx> --- arch/mips/mm/init.c | 5 ++++- 1 files changed, 4 insertions(+), 1 deletions(-) diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c index ecd562d..618a418 100644 --- a/arch/mips/mm/init.c +++ b/arch/mips/mm/init.c @@ -70,7 +70,10 @@ DEFINE_PER_CPU(struct mmu_gather, mmu_gathers); * any price. Since page is never written to after the initialization we * don't have to care about aliases on other CPUs. */ -unsigned long empty_zero_page, zero_page_mask; +unsigned long empty_zero_page; +EXPORT_SYMBOL_GPL(empty_zero_page); + +unsigned long zero_page_mask; /* * Not static inline because used by IP27 special magic initialization code -- 1.5.3
