diff options
| author |   Hook, Gary <Gary.Hook@amd.com> | 2019-06-18 22:03:04 +0000 |
|---|---|---|
| committer |   Vinod Koul <vkoul@kernel.org> | 2019-06-25 09:57:41 +0530 |
| commit | ed04b7c57c3383ed4573f1d1d1dbdc1108ba0bed (patch) | |
| tree | 386d6516f6bf699d619392fdb642d723d9a4be91 /drivers/dma | |
| parent | dmaengine: dw: Distinguish ->remove() between DW and iDMA 32-bit (diff) | |
| download | linux-dev-ed04b7c57c3383ed4573f1d1d1dbdc1108ba0bed.tar.xz linux-dev-ed04b7c57c3383ed4573f1d1d1dbdc1108ba0bed.zip | |
dmaengine: dmatest: timeout value of -1 should specify infinite wait
The dmatest module parameter 'timeout' is documented as accepting a
-1 to mean "infinite timeout". However, an infinite timeout is not
advised, nor possible since the module parameter is an unsigned int,
which won't accept a negative value. Change the parameter
comment to reflect current behavior, which allows values from 0 up to
4294967295 (0xFFFFFFFF).
Signed-off-by: Gary R Hook <gary.hook@amd.com>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/dmatest.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/dma/dmatest.c b/drivers/dma/dmatest.c index b96814a7dceb..e0c229aa1353 100644 --- a/drivers/dma/dmatest.c +++ b/drivers/dma/dmatest.c @@ -65,7 +65,7 @@ MODULE_PARM_DESC(pq_sources, static int timeout = 3000; module_param(timeout, uint, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(timeout, "Transfer Timeout in msec (default: 3000), " - "Pass -1 for infinite timeout"); + "Pass 0xFFFFFFFF (4294967295) for maximum timeout"); static bool noverify; module_param(noverify, bool, S_IRUGO | S_IWUSR); @@ -97,7 +97,7 @@ MODULE_PARM_DESC(transfer_size, "Optional custom transfer size in bytes (default * @iterations: iterations before stopping test * @xor_sources: number of xor source buffers * @pq_sources: number of p+q source buffers - * @timeout: transfer timeout in msec, -1 for infinite timeout + * @timeout: transfer timeout in msec, 0 - 0xFFFFFFFF (4294967295) */ struct dmatest_params { unsigned int buf_size; @@ -108,7 +108,7 @@ struct dmatest_params { unsigned int iterations; unsigned int xor_sources; unsigned int pq_sources; - int timeout; + unsigned int timeout; bool noverify; bool norandom; int alignment; |