Hey,
This code is older than git is so it probably doesn't matter. But just
for laughs does anyone know what this should be?
drivers/scsi/aic7xxx/aic7xxx_core.c:4807 ahc_init_scbdata()
warn: integer overflow (literal): u32max + 1
drivers/scsi/aic7xxx/aic7xxx_core.c
4794
4795 /*
4796 * Create our DMA tags. These tags define the kinds of device
4797 * accessible memory allocations and memory mappings we will
4798 * need to perform during normal operation.
4799 *
4800 * Unless we need to further restrict the allocation, we rely
4801 * on the restrictions of the parent dmat, hence the common
4802 * use of MAXADDR and MAXSIZE.
4803 */
4804
4805 /* DMA tag for our hardware scb structures */
4806 if (ahc_dma_tag_create(ahc, ahc->parent_dmat, /*alignment*/1,
4807 /*boundary*/BUS_SPACE_MAXADDR_32BIT + 1,
^^^^^^^^^^^^^^^^^^^^^^^^^^^
This is "0xffffffff + 1" which has an integer overflow so it's a
complicated way to say zero.
4808 /*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
4809 /*highaddr*/BUS_SPACE_MAXADDR,
4810 /*filter*/NULL, /*filterarg*/NULL,
4811 AHC_SCB_MAX_ALLOC * sizeof(struct hardware_scb),
4812 /*nsegments*/1,
4813 /*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT,
4814 /*flags*/0, &scb_data->hscb_dmat) != 0) {
4815 goto error_exit;
4816 }
4817
4818 scb_data->init_level++;
4819
regards,
dan carpenter
