scsi: stex: Fix gcc 13 warnings

gcc 13 may assign another type to enumeration constants than gcc 12. Split
the large enum at the top of source file stex.c such that the type of the
constants used in time expressions is changed back to the same type chosen
by gcc 12. This patch suppresses compiler warnings like this one:

In file included from ./include/linux/bitops.h:7,
                 from ./include/linux/kernel.h:22,
                 from drivers/scsi/stex.c:13:
drivers/scsi/stex.c: In function ‘stex_common_handshake’:
./include/linux/typecheck.h:12:25: error: comparison of distinct pointer types lacks a cast [-Werror]
   12 |         (void)(&__dummy == &__dummy2); \
      |                         ^~
./include/linux/jiffies.h:106:10: note: in expansion of macro ‘typecheck’
  106 |          typecheck(unsigned long, b) && \
      |          ^~~~~~~~~
drivers/scsi/stex.c:1035:29: note: in expansion of macro ‘time_after’
 1035 |                         if (time_after(jiffies, before + MU_MAX_DELAY * HZ)) {
      |                             ^~~~~~~~~~

See also https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107405.

Cc: stable@vger.kernel.org
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org> # build-tested
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20230529195034.3077-1-bvanassche@acm.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/stex.c b/drivers/scsi/stex.c
index 5b230e149c3dfe346588121e03ed81efd64cde95..8ffb75be99bc8fab964fc6df5663f9392c844258 100644 (file)
--- a/drivers/scsi/stex.c
+++ b/drivers/scsi/stex.c
@@ -109,7 +109,9 @@ enum {
        TASK_ATTRIBUTE_HEADOFQUEUE              = 0x1,
        TASK_ATTRIBUTE_ORDERED                  = 0x2,
        TASK_ATTRIBUTE_ACA                      = 0x4,
+};
 
+enum {
        SS_STS_NORMAL                           = 0x80000000,
        SS_STS_DONE                             = 0x40000000,
        SS_STS_HANDSHAKE                        = 0x20000000,
@@ -121,7 +123,9 @@ enum {
        SS_I2H_REQUEST_RESET                    = 0x2000,
 
        SS_MU_OPERATIONAL                       = 0x80000000,
+};
 
+enum {
        STEX_CDB_LENGTH                         = 16,
        STATUS_VAR_LEN                          = 128,