linux-kernel - [ 003/115] staging: zsmalloc: Fix link error on ARM

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20130506203055.940256450@linuxfoundation.org>
Date:	Mon,  6 May 2013 13:43:59 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Joerg Roedel <joro@...tes.org>,
	Minchan Kim <minchan@...nel.org>
Subject: [ 003/115] staging: zsmalloc: Fix link error on ARM

3.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Joerg Roedel <joro@...tes.org>

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@...tes.org>
Acked-by: Minchan Kim <minchan@...nel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/staging/zsmalloc/Kconfig         |    2 +-
 drivers/staging/zsmalloc/zsmalloc-main.c |    5 +----
 2 files changed, 2 insertions(+), 5 deletions(-)

--- 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
--- a/drivers/staging/zsmalloc/zsmalloc-main.c
+++ b/drivers/staging/zsmalloc/zsmalloc-main.c
@@ -656,11 +656,8 @@ static inline void __zs_unmap_object(str
 				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 */


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/