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

From: Stephen Rothwell
Date: Thu Apr 06 2017 - 00:05:10 EST


Hi James,

After merging the scsi tree, today's linux-next build (arm
multi_v7_defconfig) produced this warning:

In file included from include/linux/list.h:8:0,
from include/linux/module.h:9,
from drivers/scsi/sd.c:35:
drivers/scsi/sd.c: In function 'sd_revalidate_disk':
include/linux/kernel.h:755:16: warning: comparison of distinct pointer types lacks a cast
(void) (&min1 == &min2); \
^
include/linux/kernel.h:758:2: note: in expansion of macro '__min'
__min(typeof(x), typeof(y), \
^
include/linux/kernel.h:783:39: note: in expansion of macro 'min'
__x == 0 ? __y : ((__y == 0) ? __x : min(__x, __y)); })
^
drivers/scsi/sd.c:2959:12: note: in expansion of macro 'min_not_zero'
rw_max = min_not_zero(logical_to_sectors(sdp, dev_max),
^

Introduced by commit

c3e62673ee20 ("scsi: sd: Consider max_xfer_blocks if opt_xfer_blocks is unusable")

logical_to_sectors() is a sector_t and BLK_DEF_MAX_SECTORS is an "enum
blk_default_limits" (i.e. int).

--
Cheers,
Stephen Rothwell