linux-next: build warning after merge of the vhost tree

From: Stephen Rothwell
Date: Mon Jun 08 2020 - 23:26:03 EST


Hi all,

After merging the vhost tree, today's linux-next build (x86_64
allmodconfig) produced this warning:

In file included from include/linux/device.h:15,
from include/linux/virtio.h:9,
from drivers/virtio/virtio_mem.c:10:
drivers/virtio/virtio_mem.c: In function 'virtio_mem_init':
drivers/virtio/virtio_mem.c:1720:27: warning: format '%x' expects argument of type 'unsigned int', but argument 3 has type 'uint64_t' {aka 'long long unsigned int'} [-Wformat=]
1720 | dev_info(&vm->vdev->dev, "subblock size: 0x%x",
| ^~~~~~~~~~~~~~~~~~~~~
include/linux/dev_printk.h:19:22: note: in definition of macro 'dev_fmt'
19 | #define dev_fmt(fmt) fmt
| ^~~
drivers/virtio/virtio_mem.c:1720:2: note: in expansion of macro 'dev_info'
1720 | dev_info(&vm->vdev->dev, "subblock size: 0x%x",
| ^~~~~~~~
drivers/virtio/virtio_mem.c:1720:46: note: format string is defined here
1720 | dev_info(&vm->vdev->dev, "subblock size: 0x%x",
| ~^
| |
| unsigned int
| %llx

Introduced by commit

676fa9ba893e ("virtio_mem: convert device block size into 64bit")

--
Cheers,
Stephen Rothwell

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