gcc-4.6: mm: fix unused but set warnings
No real bugs, just some dead code and some fixups.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/mm/filemap.c b/mm/filemap.c
index 20e5642..3d4df44 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -2238,14 +2238,12 @@
do {
struct page *page;
- pgoff_t index; /* Pagecache index for current page */
unsigned long offset; /* Offset into pagecache page */
unsigned long bytes; /* Bytes to write to page */
size_t copied; /* Bytes copied from user */
void *fsdata;
offset = (pos & (PAGE_CACHE_SIZE - 1));
- index = pos >> PAGE_CACHE_SHIFT;
bytes = min_t(unsigned long, PAGE_CACHE_SIZE - offset,
iov_iter_count(i));
diff --git a/mm/memory.c b/mm/memory.c
index bde42c6..6b0c37d 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -307,7 +307,6 @@
{
pgd_t *pgd;
unsigned long next;
- unsigned long start;
/*
* The next few lines have given us lots of grief...
@@ -351,7 +350,6 @@
if (addr > end - 1)
return;
- start = addr;
pgd = pgd_offset(tlb->mm, addr);
do {
next = pgd_addr_end(addr, end);
diff --git a/mm/slab.c b/mm/slab.c
index 736e497..88435fc 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -394,7 +394,7 @@
#define STATS_DEC_ACTIVE(x) do { } while (0)
#define STATS_INC_ALLOCED(x) do { } while (0)
#define STATS_INC_GROWN(x) do { } while (0)
-#define STATS_ADD_REAPED(x,y) do { } while (0)
+#define STATS_ADD_REAPED(x,y) do { (void)(y); } while (0)
#define STATS_SET_HIGH(x) do { } while (0)
#define STATS_INC_ERR(x) do { } while (0)
#define STATS_INC_NODEALLOCS(x) do { } while (0)