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authorAlexander Shishkin <alexander.shishkin@linux.intel.com>2018-10-05 15:43:05 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-10-11 12:12:55 +0200
commitce76d938dd98817f998c905e01fbb99b072c0bf6 (patch)
tree47f7757c447cf582d7523c7a5e1f467ef28f050c /lib/Kconfig.debug
parent6c7e4b6882ad080dad623ba2f4c1a4db578313cb (diff)
downloadlinux-ce76d938dd98817f998c905e01fbb99b072c0bf6.tar.gz
lib: Add memcat_p(): paste 2 pointer arrays together
This adds a helper to paste 2 pointer arrays together, useful for merging
various types of attribute arrays. There are a few places in the kernel
tree where this is open coded, and I just added one more in the STM class.

The naming is inspired by memset_p() and memcat(), and partial credit for
it goes to Andy Shevchenko.

This patch adds the function wrapped in a type-enforcing macro and a test
module.

Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'lib/Kconfig.debug')
-rw-r--r--lib/Kconfig.debug8
1 files changed, 8 insertions, 0 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 4966c4fbe7f7..c0176510262e 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -1965,6 +1965,14 @@ config TEST_DEBUG_VIRTUAL
 
 	  If unsure, say N.
 
+config TEST_MEMCAT_P
+	tristate "Test memcat_p() helper function"
+	help
+	  Test the memcat_p() helper for correctly merging two
+	  pointer arrays together.
+
+	  If unsure, say N.
+
 endif # RUNTIME_TESTING_MENU
 
 config MEMTEST