linux-kernel - [PATCH] elfcore: correct reference to CONFIG

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Message-Id: <20211006082209.417-1-lukas.bulwahn@gmail.com>
Date:   Wed,  6 Oct 2021 10:22:09 +0200
From:   Lukas Bulwahn <lukas.bulwahn@...il.com>
To:     Andrew Morton <akpm@...ux-foundation.org>,
        Arnd Bergmann <arnd@...db.de>, linux-kernel@...r.kernel.org
Cc:     Nathan Chancellor <nathan@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        llvm@...ts.linux.dev, kernel-janitors@...r.kernel.org,
        Lukas Bulwahn <lukas.bulwahn@...il.com>
Subject: [PATCH] elfcore: correct reference to CONFIG_UML

Commit 6e7b64b9dd6d ("elfcore: fix building with clang") introduces
special handling for two architectures, ia64 and User Mode Linux.
However, the wrong name, i.e., CONFIG_UM, for the intended Kconfig symbol
for User-Mode Linux was used.

Although the directory for User Mode Linux is ./arch/um; the Kconfig
symbol for this architecture is called CONFIG_UML.

Luckily, ./scripts/checkkconfigsymbols.py warns on non-existing configs:

UM
Referencing files: include/linux/elfcore.h
Similar symbols: UML, NUMA

Correct the name of the config to the intended one.

Fixes: 6e7b64b9dd6d ("elfcore: fix building with clang")
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@...il.com>
---
applies cleanly on next-20211005

Arnd, please ack.
Andrew, please pick this fix.

 include/linux/elfcore.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/elfcore.h b/include/linux/elfcore.h
index 2aaa15779d50..127716b58235 100644
--- a/include/linux/elfcore.h
+++ b/include/linux/elfcore.h
@@ -109,7 +109,7 @@ static inline int elf_core_copy_task_fpregs(struct task_struct *t, struct pt_reg
 #endif
 }
 
-#if defined(CONFIG_UM) || defined(CONFIG_IA64)
+#if defined(CONFIG_UML) || defined(CONFIG_IA64)
 /*
  * These functions parameterize elf_core_dump in fs/binfmt_elf.c to write out
  * extra segments containing the gate DSO contents.  Dumping its
-- 
2.26.2