linux-kernel - Re: [PATCH 1/3] soc: qcom: pmic_pdcharger_ulog: Search current directory for headers

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Date:   Wed, 13 Dec 2023 11:34:36 +0100
From:   Neil Armstrong <neil.armstrong@...aro.org>
To:     Andrew Halaney <ahalaney@...hat.com>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Cc:     linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3] soc: qcom: pmic_pdcharger_ulog: Search current
 directory for headers

On 06/12/2023 00:05, Andrew Halaney wrote:
> As specified in samples/trace_events/Makefile:
> 
>      If you include a trace header outside of include/trace/events
>      then the file that does the #define CREATE_TRACE_POINTS must
>      have that tracer file in its main search path. This is because
>      define_trace.h will include it, and must be able to find it from
>      the include/trace directory.
> 
> Without this the following compilation error is seen:
> 
>        CC      drivers/soc/qcom/pmic_pdcharger_ulog.o
>      In file included from drivers/soc/qcom/pmic_pdcharger_ulog.h:36,
>                       from drivers/soc/qcom/pmic_pdcharger_ulog.c:15:
>      ./include/trace/define_trace.h:95:42: fatal error: ./pmic_pdcharger_ulog.h: No such file or directory
>         95 | #include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
>            |                                          ^
>      compilation terminated.
> 
> Fixes: 086fdb48bc65 ("soc: qcom: add ADSP PDCharger ULOG driver")
> Signed-off-by: Andrew Halaney <ahalaney@...hat.com>
> ---
>   drivers/soc/qcom/Makefile | 1 +
>   1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/soc/qcom/Makefile b/drivers/soc/qcom/Makefile
> index 110108e23669..05b3d54e8dc9 100644
> --- a/drivers/soc/qcom/Makefile
> +++ b/drivers/soc/qcom/Makefile
> @@ -10,6 +10,7 @@ obj-$(CONFIG_QCOM_PDR_HELPERS)	+= pdr_interface.o
>   obj-$(CONFIG_QCOM_PMIC_GLINK)	+= pmic_glink.o
>   obj-$(CONFIG_QCOM_PMIC_GLINK)	+= pmic_glink_altmode.o
>   obj-$(CONFIG_QCOM_PMIC_PDCHARGER_ULOG)	+= pmic_pdcharger_ulog.o
> +CFLAGS_pmic_pdcharger_ulog.o	:=  -I$(src)
>   obj-$(CONFIG_QCOM_QMI_HELPERS)	+= qmi_helpers.o
>   qmi_helpers-y	+= qmi_encdec.o qmi_interface.o
>   obj-$(CONFIG_QCOM_RAMP_CTRL)	+= ramp_controller.o
> 

I was able to reproduced it, and it only happens when we build in-tree, and checked
over the tree and indeed all the other trace drivers uses this flag to compile:

Reviewed-by: Neil Armstrong <neil.armstrong@...aro.org>

Thanks for the fix!

Neil