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authorJoerg Roedel <joro@8bytes.org>2013-03-27 01:43:14 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-05-07 20:33:02 -0700
commit1a65e9c931dc249883ce1a698d023d877ef05a34 (patch)
tree2f2c440dd0e7939ed90d9f9a337ec7de13801adf /drivers/staging
parentdacbe009b0838acce43fa0dc4e02fcbbfddaf300 (diff)
staging: zsmalloc: Fix link error on ARM
commit d95abbbb291bf5bce078148f53603ce9c0aa1d44 upstream. Testing the arm chromebook config against the upstream kernel produces a linker error for the zsmalloc module from staging. The symbol flush_tlb_kernel_range is not available there. Fix this by removing the reimplementation of unmap_kernel_range in the zsmalloc module and using the function directly. The unmap_kernel_range function is not usable by modules, so also disallow building the driver as a module for now. Signed-off-by: Joerg Roedel <joro@8bytes.org> Acked-by: Minchan Kim <minchan@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging')
-rw-r--r--drivers/staging/zsmalloc/Kconfig2
-rw-r--r--drivers/staging/zsmalloc/zsmalloc-main.c5
2 files changed, 2 insertions, 5 deletions
diff --git a/drivers/staging/zsmalloc/Kconfig b/drivers/staging/zsmalloc/Kconfig
index 90845656579..7fab032298f 100644
--- a/drivers/staging/zsmalloc/Kconfig
+++ b/drivers/staging/zsmalloc/Kconfig
@@ -1,5 +1,5 @@
config ZSMALLOC
- tristate "Memory allocator for compressed pages"
+ bool "Memory allocator for compressed pages"
default n
help
zsmalloc is a slab-based memory allocator designed to store
diff --git a/drivers/staging/zsmalloc/zsmalloc-main.c b/drivers/staging/zsmalloc/zsmalloc-main.c
index e78d262c524..324e123335d 100644
--- a/drivers/staging/zsmalloc/zsmalloc-main.c
+++ b/drivers/staging/zsmalloc/zsmalloc-main.c
@@ -656,11 +656,8 @@ static inline void __zs_unmap_object(struct mapping_area *area,
struct page *pages[2], int off, int size)
{
unsigned long addr = (unsigned long)area->vm_addr;
- unsigned long end = addr + (PAGE_SIZE * 2);
- flush_cache_vunmap(addr, end);
- unmap_kernel_range_noflush(addr, PAGE_SIZE * 2);
- flush_tlb_kernel_range(addr, end);
+ unmap_kernel_range(addr, PAGE_SIZE * 2);
}
#else /* USE_PGTABLE_MAPPING */