[PATCH -next] mm/z3fold.c: remove set but not used variable 'newpage'

[YueHaibing]

Fixes gcc '-Wunused-but-set-variable' warning:

mm/z3fold.c: In function 'compact_single_buddy':
mm/z3fold.c:693:16: warning:
 variable 'newpage' set but not used [-Wunused-but-set-variable]

mm/z3fold.c:664:13: warning:
 variable 'bud' set but not used [-Wunused-but-set-variable]

It is never used, so can be removed.

Signed-off-by: YueHaibing <yuehaib...@huawei.com>
---
 mm/z3fold.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/mm/z3fold.c b/mm/z3fold.c
index 25713a4a7186..d48d0ec3bcdd 100644
--- a/mm/z3fold.c
+++ b/mm/z3fold.c
@@ -661,7 +661,6 @@ static struct z3fold_header *compact_single_buddy(struct 
z3fold_header *zhdr)
        struct z3fold_pool *pool = zhdr_to_pool(zhdr);
        void *p = zhdr;
        unsigned long old_handle = 0;
-       enum buddy bud;
        size_t sz = 0;
        struct z3fold_header *new_zhdr = NULL;
        int first_idx = __idx(zhdr, FIRST);
@@ -673,24 +672,20 @@ static struct z3fold_header *compact_single_buddy(struct 
z3fold_header *zhdr)
         * the page lock is already taken
         */
        if (zhdr->first_chunks && zhdr->slots->slot[first_idx]) {
-               bud = FIRST;
                p += ZHDR_SIZE_ALIGNED;
                sz = zhdr->first_chunks << CHUNK_SHIFT;
                old_handle = (unsigned long)&zhdr->slots->slot[first_idx];
        } else if (zhdr->middle_chunks && zhdr->slots->slot[middle_idx]) {
-               bud = MIDDLE;
                p += zhdr->start_middle << CHUNK_SHIFT;
                sz = zhdr->middle_chunks << CHUNK_SHIFT;
                old_handle = (unsigned long)&zhdr->slots->slot[middle_idx];
        } else if (zhdr->last_chunks && zhdr->slots->slot[last_idx]) {
-               bud = LAST;
                p += PAGE_SIZE - (zhdr->last_chunks << CHUNK_SHIFT);
                sz = zhdr->last_chunks << CHUNK_SHIFT;
                old_handle = (unsigned long)&zhdr->slots->slot[last_idx];
        }
 
        if (sz > 0) {
-               struct page *newpage;
                enum buddy new_bud = HEADLESS;
                short chunks = size_to_chunks(sz);
                void *q;
@@ -699,7 +694,6 @@ static struct z3fold_header *compact_single_buddy(struct 
z3fold_header *zhdr)
                if (!new_zhdr)
                        return NULL;
 
-               newpage = virt_to_page(new_zhdr);
                if (WARN_ON(new_zhdr == zhdr))
                        goto out_fail;