linux-kernel - [PATCH v4 1/4] memblock tests: Makefile: add arguments to control verbosity

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Message-Id: <5503f3efe82ecef5c99961a1d53003c8ad06cf27.1656368930.git.remckee0@gmail.com>
Date:   Mon, 27 Jun 2022 17:34:27 -0500
From:   Rebecca Mckeever <remckee0@...il.com>
To:     Mike Rapoport <rppt@...nel.org>, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Cc:     David Hildenbrand <david@...hat.com>,
        Rebecca Mckeever <remckee0@...il.com>
Subject: [PATCH v4 1/4] memblock tests: Makefile: add arguments to control verbosity

Add VERBOSE and MEMBLOCK_DEBUG user-provided arguments. VERBOSE will
enable verbose output from Memblock simulator. MEMBLOCK_DEBUG will enable
memblock_dbg() messages.

Update the help message to include VERBOSE and MEMBLOCK_DEBUG. Update
the README to include VERBOSE. The README does not include all available
options and refers to the help message for the remaining options.
Therefore, omit MEMBLOCK_DEBUG from README.

Reviewed-by: David Hildenbrand <david@...hat.com>
Signed-off-by: Rebecca Mckeever <remckee0@...il.com>
---
 tools/testing/memblock/Makefile                 |  4 ++++
 tools/testing/memblock/README                   | 10 +++++++++-
 tools/testing/memblock/scripts/Makefile.include | 10 ++++++++++
 3 files changed, 23 insertions(+), 1 deletion(-)

diff --git a/tools/testing/memblock/Makefile b/tools/testing/memblock/Makefile
index a698e24b35e7..9fde49ad73bd 100644
--- a/tools/testing/memblock/Makefile
+++ b/tools/testing/memblock/Makefile
@@ -45,6 +45,10 @@ help:
 	@echo  '  clean		  - Remove generated files and symlinks in the directory'
 	@echo  ''
 	@echo  'Configuration:'
+	@echo  '  make VERBOSE=1            - enable verbose output, which includes the'
+	@echo  '                              names of functions being tested and the'
+	@echo  '                              number of test cases passing'
+	@echo  '  make MEMBLOCK_DEBUG=1     - enable memblock_dbg() messages'
 	@echo  '  make NUMA=1               - simulate enabled NUMA'
 	@echo  '  make MOVABLE_NODE=1       - override `movable_node_is_enabled`'
 	@echo  '                              definition to simulate movable NUMA nodes'
diff --git a/tools/testing/memblock/README b/tools/testing/memblock/README
index ca6afcff013a..058146b528a5 100644
--- a/tools/testing/memblock/README
+++ b/tools/testing/memblock/README
@@ -34,7 +34,15 @@ To run the tests, build the main target and run it:
 $ make && ./main
 
 A successful run produces no output. It is also possible to override different
-configuration parameters. For example, to simulate enabled NUMA, use:
+configuration parameters. For example, to include verbose output, specify the
+VERBOSE flag when building the main target:
+
+$ make VERBOSE=1
+
+This will print information about which functions are being tested and the
+number of test cases that passed.
+
+To simulate enabled NUMA, use:
 
 $ make NUMA=1
 
diff --git a/tools/testing/memblock/scripts/Makefile.include b/tools/testing/memblock/scripts/Makefile.include
index 641569ccb7b0..4401f79bed4c 100644
--- a/tools/testing/memblock/scripts/Makefile.include
+++ b/tools/testing/memblock/scripts/Makefile.include
@@ -17,3 +17,13 @@ ifeq ($(32BIT_PHYS_ADDR_T), 1)
 	CFLAGS += -m32 -U CONFIG_PHYS_ADDR_T_64BIT
 	LDFLAGS += -m32
 endif
+
+# Enable verbose testing output
+ifeq ($(VERBOSE), 1)
+	CFLAGS += -D VERBOSE
+endif
+
+# Enable memblock_dbg() messages
+ifeq ($(MEMBLOCK_DEBUG), 1)
+	CFLAGS += -D MEMBLOCK_DEBUG
+endif
-- 
2.34.1