From a6dcf097fad2773fdee9ea12f8452dcc259e9ee1 Mon Sep 17 00:00:00 2001 From: "Denis V. Lunev" Date: Thu, 12 Feb 2015 08:35:49 +0300 Subject: [PATCH] block/raw-posix: fix compilation warning on OSX block/raw-posix.c:947:19: warning: unused variable 's' [-Wunused-variable] BDRVRawState *s = aiocb->bs->opaque; This variable is used only when on of the following macros are defined CONFIG_XFS, CONFIG_FALLOCATE, CONFIG_FALLOCATE_PUNCH_HOLE or CONFIG_FALLOCATE_ZERO_RANGE. Fortunately, CONFIG_FALLOCATE_PUNCH_HOLE and CONFIG_FALLOCATE_ZERO_RANGE could be defined only along with CONFIG_FALLOCATE. Therefore checking for CONFIG_XFS or CONFIG_FALLOCATE would be enough. Signed-off-by: Denis V. Lunev CC: Peter Maydell CC: Kevin Wolf Signed-off-by: Kevin Wolf --- block/raw-posix.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/block/raw-posix.c b/block/raw-posix.c index b5f077a8f1..c0b46cac9e 100644 --- a/block/raw-posix.c +++ b/block/raw-posix.c @@ -944,7 +944,9 @@ static ssize_t handle_aiocb_write_zeroes_block(RawPosixAIOData *aiocb) static ssize_t handle_aiocb_write_zeroes(RawPosixAIOData *aiocb) { +#if defined(CONFIG_FALLOCATE) || defined(CONFIG_XFS) BDRVRawState *s = aiocb->bs->opaque; +#endif if (aiocb->aio_type & QEMU_AIO_BLKDEV) { return handle_aiocb_write_zeroes_block(aiocb);