From e88f72cb9f54f6d244e55f629fe5e2f34ca6f9ed Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Sat, 3 Dec 2016 12:08:03 -0700 Subject: [PATCH] nbd: fix 64-bit division We have this: ERROR: "__aeabi_ldivmod" [drivers/block/nbd.ko] undefined! ERROR: "__divdi3" [drivers/block/nbd.ko] undefined! nbd.c:(.text+0x247c72): undefined reference to `__divdi3' due to a recent commit, that did 64-bit division. Use the proper divider function so that 32-bit compiles don't break. Fixes: ef77b515243b ("nbd: use loff_t for blocksize and nbd_set_size args") Signed-off-by: Jens Axboe --- drivers/block/nbd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c index 92f5400edbd3..bc78cbb2d18a 100644 --- a/drivers/block/nbd.c +++ b/drivers/block/nbd.c @@ -729,7 +729,7 @@ static int __nbd_ioctl(struct block_device *bdev, struct nbd_device *nbd, case NBD_SET_SIZE: return nbd_size_set(nbd, bdev, nbd->blksize, - arg / nbd->blksize); + div_s64(arg, nbd->blksize)); case NBD_SET_SIZE_BLOCKS: return nbd_size_set(nbd, bdev, nbd->blksize, arg); -- 2.20.1