diff options
| author | Simon Horman <horms@kernel.org> | 2023-04-04 14:44:53 +0200 |
|---|---|---|
| committer | Mathieu Poirier <mathieu.poirier@linaro.org> | 2023-04-05 10:57:49 -0600 |
| commit | 3a87fc6f68128d31a77c03887185dbd75ed0f62a (patch) | |
| tree | c381ecf588ea53df16fd694614e4ba05b64610e7 /drivers/remoteproc | |
| parent | 96af01cdc34a39f04118b2c0f3a4c0c52bd7f973 (diff) | |
| download | linux-3a87fc6f68128d31a77c03887185dbd75ed0f62a.tar.gz | |
remoteproc: pru: Remove always true check positive unsigned value
In both cases the 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@intel.com>
Link: https://www.spinics.net/lists/kernel/msg4025983.html
Signed-off-by: Simon Horman <horms@kernel.org>
Reviewed-by: Mukesh Ojha <quic_mojha@quicinc.com>
Link: https://lore.kernel.org/r/20230404-pru-always-true-v1-1-b1b55eeff188@kernel.org
[Fixed typo in changelog]
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Diffstat (limited to 'drivers/remoteproc')
| -rw-r--r-- | drivers/remoteproc/pru_rproc.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/remoteproc/pru_rproc.c b/drivers/remoteproc/pru_rproc.c index b76db7fa693d0..095f66130f48e 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); |