fs/ntfs: remove redundant variable idx

The variable idx is assigned a value and is never read.  The variable is
not used and is redundant, remove it.

Cleans up clang scan build warning:
warning: Although the value stored to 'idx' is used in the enclosing
expression, the value is never actually read from 'idx'
[deadcode.DeadStores]

Link: https://lkml.kernel.org/r/20220517093646.93628-2-colin.i.king@gmail.com
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Reviewed-by: Anton Altaparmakov <anton@tuxera.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/fs/ntfs/file.c b/fs/ntfs/file.c
index 2ae25e4..329fca1 100644 (file)
--- a/fs/ntfs/file.c
+++ b/fs/ntfs/file.c
@@ -1772,11 +1772,11 @@ static ssize_t ntfs_perform_write(struct file *file, struct iov_iter *i,
        last_vcn = -1;
        do {
                VCN vcn;
-               pgoff_t idx, start_idx;
+               pgoff_t start_idx;
                unsigned ofs, do_pages, u;
                size_t copied;
 
-               start_idx = idx = pos >> PAGE_SHIFT;
+               start_idx = pos >> PAGE_SHIFT;
                ofs = pos & ~PAGE_MASK;
                bytes = PAGE_SIZE - ofs;
                do_pages = 1;