On Mon, Aug 18, 2014 at 12:24:06PM -0600, Simon Glass wrote:
On 18 August 2014 01:16, Thierry Reding thierry.reding@gmail.com wrote:
From: Thierry Reding treding@nvidia.com
This macro can be overridden in source files (before including common.h) and can be used to specify a prefix for debug and error messages. An example of how to use this is shown below:
#define pr_fmt(fmt) "foo: " fmt #include <common.h> ... debug("bar");The resulting message will read:
foo: barSigned-off-by: Thierry Reding treding@nvidia.com
Acked-by: Simon Glass sjg@chromium.org
Seems OK. But I wonder if a string might be simpler?
#define DEBUG_PREFIX "foo: "
+#ifndef DEBUG_PREFIX +#define DEBUG_PREFIX "" +#endif
The advantage of using the macro is that it can perform more complicated transformations on the format string, like this for example:
#define pr_fmt(fmt) "foo: %s():" fmt, __func__
Thierry