Subject: linux-next: build warning after merge of the spi tree

From: Stephen Rothwell <[email-masked]>
Date: Mon, 11 Jan 2021 12:09:39 +1100

Hi all,

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

In file included from include/linux/kernel.h:14,
                 from include/linux/clk.h:13,
                 from drivers/spi/spi-cadence-quadspi.c:9:
drivers/spi/spi-cadence-quadspi.c: In function 'cqspi_direct_read_execute':
include/linux/minmax.h:18:28: warning: comparison of distinct pointer types lacks a cast
   18 |  (!!(sizeof((typeof(x) *)1 == (typeof(y) *)1)))
      |                            ^~
include/linux/minmax.h:32:4: note: in expansion of macro '__typecheck'
   32 |   (__typecheck(x, y) && __no_side_effects(x, y))
      |    ^~~~~~~~~~~
include/linux/minmax.h:42:24: note: in expansion of macro '__safe_cmp'
   42 |  __builtin_choose_expr(__safe_cmp(x, y), \
      |                        ^~~~~~~~~~
include/linux/minmax.h:58:19: note: in expansion of macro '__careful_cmp'
   58 | #define max(x, y) __careful_cmp(x, y, >)
      |                   ^~~~~~~~~~~~~
drivers/spi/spi-cadence-quadspi.c:1153:24: note: in expansion of macro 'max'
 1153 |       msecs_to_jiffies(max(len, 500U)))) {
      |                        ^~~

Introduced by commit

  8728a81b8f10 ("spi: Fix distinct pointer types warning for ARCH=mips")

-- 
Cheers,
Stephen Rothwell