Messages in this thread Patch in this message | | | From | Mark Salter <> | Subject | [PATCH] c/r: prctl: fix build error for no-MMU case | Date | Mon, 24 Sep 2012 17:41:32 -0400 |
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Commit 1ad75b9e1 added some address checking to prctl_set_mm() used by checkpoint-restore. This causes a build error for no-MMU systems:
kernel/sys.c: In function 'prctl_set_mm': kernel/sys.c:1868:34: error: 'mmap_min_addr' undeclared (first use in this function)
The test for mmap_min_addr doesn't make a lot of sense for no-MMU code as noted in commit 6e1415467. This patch defines mmap_min_addr as 0UL in the no-MMU case so that the compiler will optimize away tests for "addr < mmap_min_addr".
Signed-off-by: Mark Salter <msalter@redhat.com> --- include/linux/security.h | 1 + 1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/include/linux/security.h b/include/linux/security.h index 3dea6a9..d143b8e 100644 --- a/include/linux/security.h +++ b/include/linux/security.h @@ -118,6 +118,7 @@ void reset_security_ops(void); extern unsigned long mmap_min_addr; extern unsigned long dac_mmap_min_addr; #else +#define mmap_min_addr 0UL #define dac_mmap_min_addr 0UL #endif -- 1.7.9.1
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