Re: [PATCH v3 07/18] arm64: defconfig: Enable Qualcomm minidump driver

From: Mukesh Ojha
Date: Thu May 04 2023 - 07:46:16 EST




On 5/4/2023 4:53 PM, Krzysztof Kozlowski wrote:
On 03/05/2023 19:02, Mukesh Ojha wrote:
Previous patches add the Qualcomm minidump driver support, so
lets enable minidump config so that it can be used by kernel
clients.

Signed-off-by: Mukesh Ojha <quic_mojha@xxxxxxxxxxx>

This patchset is split too much. Defconfig change is one change. Not two
or three.

---
arch/arm64/configs/defconfig | 1 +
1 file changed, 1 insertion(+)

diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
index a24609e..831c942 100644
--- a/arch/arm64/configs/defconfig
+++ b/arch/arm64/configs/defconfig
@@ -1250,6 +1250,7 @@ CONFIG_QCOM_STATS=m
CONFIG_QCOM_WCNSS_CTRL=m
CONFIG_QCOM_APR=m
CONFIG_QCOM_ICC_BWMON=m
+CONFIG_QCOM_MINIDUMP=y

This must be a module.

Why do you think this should be a module ?

Is it because, it is lying here among others '=m' ?

Or you have some other reasoning ? like it is for qcom specific
soc and can not be used outside ? but that is not true for
all configs mentioned here.

The reason behind making it as '=y' was, to collect information from core kernel data structure as well as the information like percpu data, run queue, irq stat kind of information on kernel crash on a target running some perf configuration(android phone).

-- Mukesh


Best regards,
Krzysztof