Subject: Re: linux-next: build warnings after merge of the scsi-mkp tree

From: Stephen Rothwell <[email-masked]>
Date: Thu, 29 Jun 2017 15:07:52 +1000

Hi James,

This has now migrated to the scsi tree.

On Wed, 28 Jun 2017 15:55:10 +1000 Stephen Rothwell <[email-masked]> wrote:
>
> After merging the scsi-mkp tree, today's linux-next build
> (powerpc_ppc64_defconfig) produced these warnings:
> 
> In file included from include/linux/byteorder/big_endian.h:4:0,
>                  from arch/powerpc/include/uapi/asm/byteorder.h:13,
>                  from include/asm-generic/bitops/le.h:5,
>                  from arch/powerpc/include/asm/bitops.h:246,
>                  from include/linux/bitops.h:36,
>                  from include/linux/kernel.h:10,
>                  from include/asm-generic/bug.h:15,
>                  from arch/powerpc/include/asm/bug.h:127,
>                  from include/linux/bug.h:4,
>                  from arch/powerpc/include/asm/mmu.h:125,
>                  from arch/powerpc/include/asm/lppaca.h:36,
>                  from arch/powerpc/include/asm/paca.h:21,
>                  from arch/powerpc/include/asm/current.h:16,
>                  from include/linux/sched.h:11,
>                  from include/linux/blkdev.h:4,
>                  from include/linux/blk-mq.h:4,
>                  from drivers/scsi/qla2xxx/qla_nvme.h:10,
>                  from drivers/scsi/qla2xxx/qla_nvme.c:7:
> drivers/scsi/qla2xxx/qla_nvme.c: In function 'qla2x00_start_nvme_mq':
> include/uapi/linux/byteorder/big_endian.h:32:26: warning: large integer implicitly truncated to unsigned type [-Woverflow]
>  #define __cpu_to_le32(x) ((__force __le32)__swab32((x)))
>                           ^
> include/linux/byteorder/generic.h:87:21: note: in expansion of macro '__cpu_to_le32'
>  #define cpu_to_le32 __cpu_to_le32
>                      ^
> drivers/scsi/qla2xxx/qla_nvme.c:444:27: note: in expansion of macro 'cpu_to_le32'
>     cont_pkt->entry_type = cpu_to_le32(CONTINUE_A64_TYPE);
>                            ^
> drivers/scsi/qla2xxx/qla_nvme.c: At top level:
> drivers/scsi/qla2xxx/qla_nvme.c:667:13: warning: 'qla_nvme_unregister_remote_port' defined but not used [-Wunused-function]
>  static void qla_nvme_unregister_remote_port(struct work_struct *work)
>              ^
> drivers/scsi/qla2xxx/qla_nvme.c:604:12: warning: 'qla_nvme_wait_on_rport_del' defined but not used [-Wunused-function]
>  static int qla_nvme_wait_on_rport_del(fc_port_t *fcport)
>             ^
> drivers/scsi/qla2xxx/qla_nvme.c:634:13: warning: 'qla_nvme_abort_all' defined but not used [-Wunused-function]
>  static void qla_nvme_abort_all(fc_port_t *fcport)
>              ^
> 
> Introduced by commit
> 
>   e84067d74301 ("scsi: qla2xxx: Add FC-NVMe F/W initialization and transport registration")

-- 
Cheers,
Stephen Rothwell