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authorLinus Torvalds <torvalds@linux-foundation.org>2016-10-28 01:49:12 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2016-10-28 01:49:12 +0300
commit9db4f36e82c2394c958d8e42a498fb664684bc22 (patch)
tree6b064b9f2b6c593639004c2a8a784a861dbca546 /mm/memory_hotplug.c
parent4e68af0b0694ac5f16d0c61a7682aa2d46348454 (diff)
downloadlinux-9db4f36e82c2394c958d8e42a498fb664684bc22.tar.xz
mm: remove unused variable in memory hotplug
When I removed the per-zone bitlock hashed waitqueues in commit 9dcb8b685fc3 ("mm: remove per-zone hashtable of bitlock waitqueues"), I removed all the magic hotplug memory initialization of said waitqueues too. But when I actually _tested_ the resulting build, I stupidly assumed that "allmodconfig" would enable memory hotplug. And it doesn't, because it enables KASAN instead, which then disables hotplug memory support. As a result, my build test of the per-zone waitqueues was totally broken, and I didn't notice that the compiler warns about the now unused iterator variable 'i'. I guess I should be happy that that seems to be the worst breakage from my clearly horribly failed test coverage. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/memory_hotplug.c')
-rw-r--r--mm/memory_hotplug.c1
1 files changed, 0 insertions, 1 deletions
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index b18dab401be6..cad4b9125695 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -2117,7 +2117,6 @@ void try_offline_node(int nid)
unsigned long start_pfn = pgdat->node_start_pfn;
unsigned long end_pfn = start_pfn + pgdat->node_spanned_pages;
unsigned long pfn;
- int i;
for (pfn = start_pfn; pfn < end_pfn; pfn += PAGES_PER_SECTION) {
unsigned long section_nr = pfn_to_section_nr(pfn);