bug: Avoid Kconfig warning for BUG_ON_DATA_CORRUPTION

The CONFIG_DEBUG_LIST option is normally meant for kernel developers
rather than production machines and is guarded by CONFIG_DEBUG_KERNEL.

In contrast, the newly added CONFIG_BUG_ON_DATA_CORRUPTION is meant
for security hardening and may be used on systems that intentionally
do not enable CONFIG_DEBUG_KERNEL. In this configuration, we get
a warning from Kconfig about the mismatched dependencies:

warning: (BUG_ON_DATA_CORRUPTION) selects DEBUG_LIST which has unmet direct dependencies (DEBUG_KERNEL)

This annotates the DEBUG_LIST option to be selectable by
BUG_ON_DATA_CORRUPTION when DEBUG_KERNEL is disabled.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 40cd725cfc7f ("bug: Provide toggle for BUG on data corruption")
Acked-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 56f359e6c1973133121510c867e9f78be4057b20..84cd2fd8df764a995bb4bcb4d4247b4a235dd597 100644 (file)
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -1214,7 +1214,7 @@ config DEBUG_BUGVERBOSE
 
 config DEBUG_LIST
        bool "Debug linked list manipulation"
-       depends on DEBUG_KERNEL
+       depends on DEBUG_KERNEL || BUG_ON_DATA_CORRUPTION
        help
          Enable this to turn on extended checks in the linked-list
          walking routines.