In both cases they type of da is u32. And PRU_PDRAM_DA is 0. So the check da >= PRU_PDRAM_DA is always true and can be removed. Flagged by Smatch: drivers/remoteproc/pru_rproc.c:660 pru_d_da_to_va() warn: always true condition '(da >= 0) => (0-u32max >= 0)' drivers/remoteproc/pru_rproc.c:709 pru_i_da_to_va() warn: always true condition '(da >= 0) => (0-u32max >= 0)' No functional changes intended. Compile tested only. Reported-by: kernel test robot <lkp@xxxxxxxxx> Link: https://www.spinics.net/lists/kernel/msg4025983.html Signed-off-by: Simon Horman <horms@xxxxxxxxxx> --- drivers/remoteproc/pru_rproc.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/remoteproc/pru_rproc.c b/drivers/remoteproc/pru_rproc.c index b76db7fa693d..095f66130f48 100644 --- a/drivers/remoteproc/pru_rproc.c +++ b/drivers/remoteproc/pru_rproc.c @@ -657,7 +657,7 @@ static void *pru_d_da_to_va(struct pru_rproc *pru, u32 da, size_t len) swap(dram0, dram1); shrd_ram = pruss->mem_regions[PRUSS_MEM_SHRD_RAM2]; - if (da >= PRU_PDRAM_DA && da + len <= PRU_PDRAM_DA + dram0.size) { + if (da + len <= PRU_PDRAM_DA + dram0.size) { offset = da - PRU_PDRAM_DA; va = (__force void *)(dram0.va + offset); } else if (da >= PRU_SDRAM_DA && @@ -706,8 +706,7 @@ static void *pru_i_da_to_va(struct pru_rproc *pru, u32 da, size_t len) */ da &= 0xfffff; - if (da >= PRU_IRAM_DA && - da + len <= PRU_IRAM_DA + pru->mem_regions[PRU_IOMEM_IRAM].size) { + if (da + len <= PRU_IRAM_DA + pru->mem_regions[PRU_IOMEM_IRAM].size) { offset = da - PRU_IRAM_DA; va = (__force void *)(pru->mem_regions[PRU_IOMEM_IRAM].va + offset);
