Re: [PATCH] ice: use min() to make code cleaner in ice_gnss

[Tony Nguyen]

On 3/18/2022 2:46 AM, Wan Jiabing wrote:
> Fix the following coccicheck warning:
> ./drivers/net/ethernet/intel/ice/ice_gnss.c:79:26-27: WARNING opportunity for min()
>
> Use min() to make code cleaner.
>
> Signed-off-by: Wan Jiabing <wanjiabing@xxxxxxxx>

There are build issues with this patch:

In file included from ./include/linux/kernel.h:26,
                 from drivers/net/ethernet/intel/ice/ice.h:9,
                 from drivers/net/ethernet/intel/ice/ice_gnss.c:4:
drivers/net/ethernet/intel/ice/ice_gnss.c: In function ‘ice_gnss_read’:
./include/linux/minmax.h:20:35: error: comparison of distinct pointer 
types lacks a cast [-Werror]
   20 |         (!!(sizeof((typeof(x) *)1 == (typeof(y) *)1)))
      |                                   ^~
./include/linux/minmax.h:26:18: note: in expansion of macro ‘__typecheck’
   26 |                 (__typecheck(x, y) && __no_side_effects(x, y))
      |                  ^~~~~~~~~~~
./include/linux/minmax.h:36:31: note: in expansion of macro ‘__safe_cmp’
   36 |         __builtin_choose_expr(__safe_cmp(x, y), \
      |                               ^~~~~~~~~~
./include/linux/minmax.h:45:25: note: in expansion of macro ‘__careful_cmp’
   45 | #define min(x, y)       __careful_cmp(x, y, <)
      |                         ^~~~~~~~~~~~~
drivers/net/ethernet/intel/ice/ice_gnss.c:79:30: note: in expansion of 
macro ‘min’
   79 |                 bytes_read = min(bytes_left, 
ICE_MAX_I2C_DATA_SIZE);
      |                              ^~~
cc1: all warnings being treated as errors