linux-kernel - [PATCH v2] powerpc: Remove inaccessible CMDLINE default

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Message-Id: <20200611034140.9133-1-chris.packham@alliedtelesis.co.nz>
Date:   Thu, 11 Jun 2020 15:41:40 +1200
From:   Chris Packham <chris.packham@...iedtelesis.co.nz>
To:     mpe@...erman.id.au, benh@...nel.crashing.org, paulus@...ba.org,
        christophe.leroy@....fr
Cc:     linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
        Chris Packham <chris.packham@...iedtelesis.co.nz>
Subject: [PATCH v2] powerpc: Remove inaccessible CMDLINE default

Since commit cbe46bd4f510 ("powerpc: remove CONFIG_CMDLINE #ifdef mess")
CONFIG_CMDLINE has always had a value regardless of CONFIG_CMDLINE_BOOL.

For example:

 $ make ARCH=powerpc defconfig
 $ cat .config
 # CONFIG_CMDLINE_BOOL is not set
 CONFIG_CMDLINE=""

When enabling CONFIG_CMDLINE_BOOL this value is kept making the 'default
"..." if CONFIG_CMDLINE_BOOL' ineffective.

 $ ./scripts/config --enable CONFIG_CMDLINE_BOOL
 $ cat .config
 CONFIG_CMDLINE_BOOL=y
 CONFIG_CMDLINE=""

Remove CONFIG_CMDLINE_BOOL and the inaccessible default.

Signed-off-by: Chris Packham <chris.packham@...iedtelesis.co.nz>
Reviewed-by: Christophe Leroy <christophe.leroy@....fr>
---
It took me a while to get round to sending a v2, for a refresher v1 can be found here:

http://patchwork.ozlabs.org/project/linuxppc-dev/patch/20190802050232.22978-1-chris.packham@alliedtelesis.co.nz/

Changes in v2:
- Rebase on top of Linus's tree
- Fix some typos in commit message
- Add review from Christophe
- Remove CONFIG_CMDLINE_BOOL

 arch/powerpc/Kconfig | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 9fa23eb320ff..51abc59c3334 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -859,12 +859,8 @@ config PPC_DENORMALISATION
 	  Add support for handling denormalisation of single precision
 	  values.  Useful for bare metal only.  If unsure say Y here.
 
-config CMDLINE_BOOL
-	bool "Default bootloader kernel arguments"
-
 config CMDLINE
-	string "Initial kernel command string" if CMDLINE_BOOL
-	default "console=ttyS0,9600 console=tty0 root=/dev/sda2" if CMDLINE_BOOL
+	string "Initial kernel command string"
 	default ""
 	help
 	  On some platforms, there is currently no way for the boot loader to
-- 
2.27.0