linux-kernel - [PATCH 4/7] dyndbg: select ZPOOL,ZS_MALLOC in Kconfig.debug DYNAMIC_DEBUG

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Date:   Wed, 25 Nov 2020 12:36:23 -0700
From:   Jim Cromie <jim.cromie@...il.com>
To:     linux-mm@...ck.org
Cc:     gregkh@...uxfoundation.org, linux@...musvillemoes.dk,
        Jim Cromie <jim.cromie@...il.com>,
        kernel test robot <lkp@...el.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Randy Dunlap <rdunlap@...radead.org>,
        Changbin Du <changbin.du@...el.com>,
        Masahiro Yamada <masahiroy@...nel.org>,
        "peterz@...radead.org" <peterz@...radead.org>,
        Peter Enderborg <peter.enderborg@...y.com>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        linux-kernel@...r.kernel.org
Subject: [PATCH 4/7] dyndbg: select ZPOOL,ZS_MALLOC in Kconfig.debug DYNAMIC_DEBUG_CORE

dyndbg will next need zs_malloc and friends, so add config reqs now,
to maybe avoid churny remakes later.

ZPOOL,ZSMALLOC are now required for DYNAMIC_DEBUG_CORE, as theyre
needed to get value (mem use reduction) from the upcoming
dyndbg/callsite split.

---

ZS_MALLOC is done with "depends on" instead of "select" to break a
recursive dependency.  I think this doesnt quite sort things out for
other config permutations, TBD.

-v2 fixup -> _CORE
Reported-by: kernel test robot <lkp@...el.com>

Signed-off-by: Jim Cromie <jim.cromie@...il.com>
---
 lib/Kconfig.debug | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index c789b39ed527..7eb7b43037d9 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -170,6 +170,8 @@ config DYNAMIC_DEBUG_CORE
 	bool "Enable core function of dynamic debug support"
 	depends on PRINTK
 	depends on (DEBUG_FS || PROC_FS)
+	select ZPOOL
+	depends on ZSMALLOC
 	help
 	  Enable core functional support of dynamic debug. It is useful
 	  when you want to tie dynamic debug to your kernel modules with
-- 
2.28.0