[ Ancient code, but the fix should be obvious if anyone wanted to test
it. - dan ]
Hello Bradley Grove,
The patch 9588d24e3600: "[SCSI] esas2r: Directly call kernel
functions for atomic bit operations" from Oct 1, 2013, leads to the
following static checker warning:
drivers/scsi/esas2r/esas2r_init.c:858 esas2r_init_adapter_struct()
warn: 'AF2_SERIAL_FLASH' is a shifter (not for '|=').
drivers/scsi/esas2r/esas2r_init.c
849 /*
850 * the thunder_stream boards all have a serial flash part that has a
851 * different base address on the AHB bus.
852 */
853 if ((a->pcid->subsystem_vendor == ATTO_VENDOR_ID)
854 && (a->pcid->subsystem_device & ATTO_SSDID_TBT))
855 a->flags2 |= AF2_THUNDERBOLT;
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
This should be "a->flags2 |= BIT(AF2_THUNDERBOLT)" or
set_bit(AF2_THUNDERBOLT, &&a->flags2);
856
857 if (test_bit(AF2_THUNDERBOLT, &a->flags2))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
So that it matches this line.
858 a->flags2 |= AF2_SERIAL_FLASH;
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
859
860 if (a->pcid->subsystem_device == ATTO_TLSH_1068)
861 a->flags2 |= AF2_THUNDERLINK;
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Same for these. But the code is really old and no one has noticed the
bug...
862
863 /* Uncached Area */
864 high = (u8 *)*uncached_area;
865
regards,
dan carpenter
