On Tue, 21 Jul 2015 04:56:21 +0900,
Guenter Roeck wrote:
>
> Hi,
>
> Commit 52b2512d507d ("asm-generic: {get,put}_user ptr argument evaluate only 1 time")
> causes the following compile error with various architectures (arc, arcv2, c6x, hexagon,
> um, unicore32) in -next.
>
> block/scsi_ioctl.c: In function ʽsg_scsi_ioctlʼ:
> block/scsi_ioctl.c:436:2: error: invalid initializer
> if (get_user(opcode, sic->data))
> ^
> make[1]: *** [block/scsi_ioctl.o] Error 1
>
> A possible fix would be to use &sic->data[0] instead, but I am not sure if this change
> in semantics of get_user would be acceptable.
>
> Another failure due to the same commit is seen when building arc:axs103_defconfig.
>
> fs/fat/dir.c: In function ʽfat_ioctl_filldirʼ:
> fs/fat/dir.c:752:43: error: invalid initializer
> FAT_IOCTL_FILLDIR_FUNC(fat_ioctl_filldir, __fat_dirent)
>
> This error is related to the put_user changes. No idea how to fix that one.
>
> Guenter
Sorry. I misunderstand specification of get_user.
I'll send fixed patch.
--
Yoshinori Sato
<ysato@xxxxxxxxxxxxxxxxxxxx>
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