Re: [PATCH] LoongArch: Select HAVE_DEBUG_KMEMLEAK to support kmemleak

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Cc: Jonathan Corbet <corbet@xxxxxxx>
    linux-doc@xxxxxxxxxxxxxxx

On 05/09/2023 03:13 PM, Youling Tang wrote:
Hi, Tiezhu

On 05/09/2023 02:49 PM, Tiezhu Yang wrote:
We can see that DEBUG_KMEMLEAK depends on HAVE_DEBUG_KMEMLEAK after
commit b69ec42b1b19 ("Kconfig: clean up the long arch list for the
DEBUG_KMEMLEAK config option"), just select HAVE_DEBUG_KMEMLEAK to
support kmemleak on LoongArch.

Signed-off-by: Tiezhu Yang <yangtiezhu@xxxxxxxxxxx>
---

This is based on 6.4-rc1

 arch/loongarch/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/loongarch/Kconfig b/arch/loongarch/Kconfig
index d38b066..1e64edd 100644
--- a/arch/loongarch/Kconfig
+++ b/arch/loongarch/Kconfig
@@ -90,6 +90,7 @@ config LOONGARCH
     select HAVE_ASM_MODVERSIONS
     select HAVE_CONTEXT_TRACKING_USER
     select HAVE_C_RECORDMCOUNT
+    select HAVE_DEBUG_KMEMLEAK
     select HAVE_DEBUG_STACKOVERFLOW
     select HAVE_DMA_CONTIGUOUS
     select HAVE_DYNAMIC_FTRACE


At the same time, you need to modify the loongarch in arch-support.txt
to ok.

BTW, we can submit a separate patch to modify the features already
supported by LoongArch.

The following features are already supported in LoongArch.

diff --git
a/Documentation/features/debug/kprobes-on-ftrace/arch-support.txt
b/Documentation/features/debug/kprobes-on-ftrace/arch-support.txt
...
diff --git a/Documentation/features/debug/kprobes/arch-support.txt
b/Documentation/features/debug/kprobes/arch-support.txt
index 8a77d62a42c5..aad83b57587a 100644
--- a/Documentation/features/debug/kprobes/arch-support.txt
+++ b/Documentation/features/debug/kprobes/arch-support.txt
...
diff --git a/Documentation/features/debug/kretprobes/arch-support.txt
b/Documentation/features/debug/kretprobes/arch-support.txt
index cf4723c5ac55..61380010a4a7 100644
--- a/Documentation/features/debug/kretprobes/arch-support.txt
+++ b/Documentation/features/debug/kretprobes/arch-support.txt
...
diff --git
a/Documentation/features/debug/stackprotector/arch-support.txt
b/Documentation/features/debug/stackprotector/arch-support.txt
index 71cd4ba18f7d..4c64c5d596f7 100644
--- a/Documentation/features/debug/stackprotector/arch-support.txt
+++ b/Documentation/features/debug/stackprotector/arch-support.txt

Thank you, I have already prepared a patch to update the docs,
but some more features will be added on LoongArch in the following
merge window, I am not sure what is the proper time to send the
following patch, maybe two months later, or right away, maybe
Jonathan can give some suggestions.

Documentation/features: Refresh LoongArch support files

Run the refresh script [1] to document the recent feature additions
on LoongArch.

[1] Documentation/features/scripts/features-refresh.sh

Thanks,
Tiezhu




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