dmaengine: Make dmatest.rst indeed reST compatible

Make dmatest.rst indeed reST compatible.
Achieve this by fixing several formatting issues.
Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: NJonathan Corbet <corbet@lwn.net>

Documentation/driver-api/dmaengine/dmatest.rst

@@ -15,6 +15,7 @@ Part 1 - How to build the test module
 =====================================
 
 The menuconfig contains an option that could be found by following path:
+
 	Device Drivers -> DMA Engine support -> DMA Test client
 
 In the configuration file the option called CONFIG_DMATEST. The dmatest could
@@ -23,11 +24,11 @@ be built as module or inside kernel. Let's consider those cases.
 Part 2 - When dmatest is built as a module
 ==========================================
 
-Example of usage: ::
+Example of usage::
 
     % modprobe dmatest channel=dma0chan0 timeout=2000 iterations=1 run=1
 
-...or: ::
+...or::
 
     % modprobe dmatest
     % echo dma0chan0 > /sys/module/dmatest/parameters/channel
@@ -35,14 +36,12 @@ Example of usage: ::
     % echo 1 > /sys/module/dmatest/parameters/iterations
     % echo 1 > /sys/module/dmatest/parameters/run
 
-...or on the kernel command line: ::
+...or on the kernel command line::
 
     dmatest.channel=dma0chan0 dmatest.timeout=2000 dmatest.iterations=1 dmatest.run=1
 
-..hint:: available channel list could be extracted by running the following
-         command:
-
-::
+.. hint::
+  available channel list could be extracted by running the following command::
 
     % ls -1 /sys/class/dma/
 
@@ -64,12 +63,12 @@ before returning. For example, the following scripts wait for 42 tests
 to complete before exiting. Note that if 'iterations' is set to 'infinite' then
 waiting is disabled.
 
-Example: ::
+Example::
 
     % modprobe dmatest run=1 iterations=42 wait=1
     % modprobe -r dmatest
 
-...or: ::
+...or::
 
     % modprobe dmatest run=1 iterations=42
     % cat /sys/module/dmatest/parameters/wait
@@ -81,7 +80,7 @@ Part 3 - When built-in in the kernel
 The module parameters that is supplied to the kernel command line will be used
 for the first performed test. After user gets a control, the test could be
 re-run with the same or different parameters. For the details see the above
-section "Part 2 - When dmatest is built as a module..."
+section `Part 2 - When dmatest is built as a module`_.
 
 In both cases the module parameters are used as the actual values for the test
 case. You always could check them at run-time by running ::
@@ -91,12 +90,11 @@ case. You always could check them at run-time by running ::
 Part 4 - Gathering the test results
 ===================================
 
-Test results are printed to the kernel log buffer with the format: ::
+Test results are printed to the kernel log buffer with the format::
 
     "dmatest: result <channel>: <test id>: '<error msg>' with src_off=<val> dst_off=<val> len=<val> (<err code>)"
 
-Example of output: ::
-
+Example of output::
 
     % dmesg | tail -n 1
     dmatest: result dma0chan0-copy0: #1: No errors with src_off=0x7bf dst_off=0x8ad len=0x3fea (0)
@@ -106,7 +104,7 @@ the parens represents additional information, e.g. error code, error counter,
 or status. A test thread also emits a summary line at completion listing the
 number of tests executed, number that failed, and a result code.
 
-Example: ::
+Example::
 
     % dmesg | tail -n 1
     dmatest: dma0chan0-copy0: summary 1 test, 0 failures 1000 iops 100000 KB/s (0)