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Subjectlinux-next: build warning after merge of the lightnvm tree
Hi Matias,

After merging the lightnvm tree, today's linux-next build (powerpc
allyesconfig) produced this warning:

In file included from include/linux/swab.h:4:0,
from include/uapi/linux/byteorder/big_endia
from include/linux/byteorder/big_endian.h:4
from arch/powerpc/include/uapi/asm/byteorde
from include/asm-generic/bitops/le.h:5,
from arch/powerpc/include/asm/bitops.h:279,
from include/linux/bitops.h:36,
from include/linux/kernel.h:10,
from include/linux/list.h:8,
from include/linux/pci.h:25,
from drivers/nvme/host/nvme.h:18,
from drivers/nvme/host/lightnvm.c:23:
drivers/nvme/host/lightnvm.c: In function 'nvme_nvm_rqtocmd'
include/uapi/linux/byteorder/big_endian.h:30:52: warning: passing argument 1 of '__fswab64' makes integer from pointer without a cast [-Wint-conversion]
#define __cpu_to_le64(x) ((__force __le64)__swab64((x)))
include/uapi/linux/swab.h:126:12: note: in definition of macro '__swab64'
include/linux/byteorder/generic.h:85:21: note: in expansion of macro '__cpu_to_le64'
#define cpu_to_le64 __cpu_to_le64
drivers/nvme/host/lightnvm.c:472:22: note: in expansion of macro 'cpu_to_le64'
c->ph_rw.metadata = cpu_to_le64(rqd->meta_list);
include/uapi/linux/swab.h:68:41: note: expected '__u64 {aka long long unsigned int}' but argument is of type 'void *'
static inline __attribute_const__ __u64 __fswab64(__u64 val)

Introduced by commit

a34b1eb78e21 ("lightnvm: enable metadata to be sent to device")

Stephen Rothwell

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