commit 3b6fd6ffb27c2efa003c6d4d15ca72c054b71d7c upstream.
In cb5e39b8038b ("drivers: base: refactor add_memory_section() to add_memory_block()"), add_memory_block() is introduced, which is only invoked in memory_dev_init().
When combining these two loops in memory_dev_init() and add_memory_block(), they looks like this:
for (i = 0; i < NR_MEM_SECTIONS; i += sections_per_block) for (j = i; (j < i + sections_per_block) && j < NR_MEM_SECTIONS; j++)
Since it is sure the (i < NR_MEM_SECTIONS) and j sits in its own memory block, the check of (j < NR_MEM_SECTIONS) is not necessary.
This patch just removes this check.
Link: http://lkml.kernel.org/r/20181123222811.18216-1-richard.weiyang@gmail.com Signed-off-by: Wei Yang richard.weiyang@gmail.com Reviewed-by: Andrew Morton akpm@linux-foundation.org Cc: Greg Kroah-Hartman gregkh@linuxfoundation.org Cc: "Rafael J. Wysocki" rafael@kernel.org Cc: Seth Jennings sjenning@redhat.com Signed-off-by: Andrew Morton akpm@linux-foundation.org Signed-off-by: Linus Torvalds torvalds@linux-foundation.org Signed-off-by: David Hildenbrand david@redhat.com --- drivers/base/memory.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/base/memory.c b/drivers/base/memory.c index ac1574a69610..5fca7225f3fe 100644 --- a/drivers/base/memory.c +++ b/drivers/base/memory.c @@ -691,7 +691,7 @@ static int add_memory_block(int base_section_nr) int i, ret, section_count = 0, section_nr;
for (i = base_section_nr; - (i < base_section_nr + sections_per_block) && i < NR_MEM_SECTIONS; + i < base_section_nr + sections_per_block; i++) { if (!present_section_nr(i)) continue;