[cip-dev] [PATCH 4.4.y-cip] ARM: shmobile: defconfig: Restore debugfs support

[cip-dev] [PATCH 4.4.y-cip] ARM: shmobile: defconfig: Restore debugfs support

[Biju Das]

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From: Geert Uytterhoeven <geert+renesas@glider.be>

commit fa2cdb1762d15f701b83efa60b04f0d04e71bf89 upstream.

Since commit 0e4a459f56c32d3e ("tracing: Remove unnecessary DEBUG_FS
dependency"), CONFIG_DEBUG_FS is no longer auto-enabled.  This breaks
booting Debian 9, as systemd needs debugfs:

    [FAILED] Failed to mount /sys/kernel/debug.
    See 'systemctl status sys-kernel-debug.mount' for details.
    [DEPEND] Dependency failed for Local File Systems.
    ...
    You are in emergGive root password for maintenance
    (or press Control-D to continue):

Fix this by enabling CONFIG_DEBUG_FS explicitly.

See also commit 18977008f44c66bd ("ARM: multi_v7_defconfig: Restore
debugfs support").

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://lore.kernel.org/r/20191209101327.26571-1-geert+renesas@glider.be
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
---
 arch/arm/configs/shmobile_defconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/configs/shmobile_defconfig b/arch/arm/configs/shmobile_defconfig
index 151fad5c0b8d..865d1696109f 100644
--- a/arch/arm/configs/shmobile_defconfig
+++ b/arch/arm/configs/shmobile_defconfig
@@ -226,3 +226,4 @@ CONFIG_NLS_ISO8859_1=y
 # CONFIG_ENABLE_WARN_DEPRECATED is not set
 # CONFIG_ENABLE_MUST_CHECK is not set
 # CONFIG_ARM_UNWIND is not set
+CONFIG_DEBUG_FS=y
-- 
2.17.1


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Re: [cip-dev] [PATCH 4.4.y-cip] ARM: shmobile: defconfig: Restore debugfs support

[Pavel Machek]

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Hi!

> From: Geert Uytterhoeven <geert+renesas@glider.be>
> 
> commit fa2cdb1762d15f701b83efa60b04f0d04e71bf89 upstream.
> 
> Since commit 0e4a459f56c32d3e ("tracing: Remove unnecessary DEBUG_FS
> dependency"), CONFIG_DEBUG_FS is no longer auto-enabled.  This breaks
> booting Debian 9, as systemd needs debugfs:
> 
>     [FAILED] Failed to mount /sys/kernel/debug.
>     See 'systemctl status sys-kernel-debug.mount' for details.
>     [DEPEND] Dependency failed for Local File Systems.
>     ...
>     You are in emergGive root password for maintenance
>     (or press Control-D to continue):
> 
> Fix this by enabling CONFIG_DEBUG_FS explicitly.
> 
> See also commit 18977008f44c66bd ("ARM: multi_v7_defconfig: Restore
> debugfs support").

Do we rely on these defconfigs? I can take it as it should not break
anything, but it should not really be too important for -cip project.

[It is "defconfig", not "suitable-config-for-debian-9" :-)].

Best regards,
								Pavel
								
> +++ b/arch/arm/configs/shmobile_defconfig
> @@ -226,3 +226,4 @@ CONFIG_NLS_ISO8859_1=y
>  # CONFIG_ENABLE_WARN_DEPRECATED is not set
>  # CONFIG_ENABLE_MUST_CHECK is not set
>  # CONFIG_ARM_UNWIND is not set
> +CONFIG_DEBUG_FS=y

-- 
DENX Software Engineering GmbH,      Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany

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