linux-kernel - [PATCH] remoteproc: qcom: q6v5: fix service routines build errors

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Message-Id: <20220115011338.2973-1-rdunlap@infradead.org>
Date:   Fri, 14 Jan 2022 17:13:38 -0800
From:   Randy Dunlap <rdunlap@...radead.org>
To:     linux-kernel@...r.kernel.org
Cc:     Randy Dunlap <rdunlap@...radead.org>,
        kernel test robot <lkp@...el.com>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Mathieu Poirier <mathieu.poirier@...aro.org>,
        linux-remoteproc@...r.kernel.org,
        Sibi Sankar <sibis@...eaurora.org>,
        Stephen Boyd <swboyd@...omium.org>
Subject: [PATCH] remoteproc: qcom: q6v5: fix service routines build errors

When CONFIG_QCOM_AOSS_QMP=m and CONFIG_QCOM_Q6V5_MSS=y, the builtin
driver cannot call into the loadable module's low-level service
functions. Trying to build with that config combo causes linker errors.

There are two problems here. First, drivers/remoteproc/qcom_q6v5.c
should #include <linux/soc/qcom/qcom_aoss.h> for the definitions of
the service functions, depending on whether CONFIG_QCOM_AOSS_QMP is
set/enabled or not. Second, the qcom remoteproc drivers should depend
on QCOM_AOSS_QMP iff it is enabled (=y or =m) so that the qcom
remoteproc drivers can be built properly.

This prevents these build errors:

aarch64-linux-ld: drivers/remoteproc/qcom_q6v5.o: in function `q6v5_load_state_toggle':
qcom_q6v5.c:(.text+0xc4): undefined reference to `qmp_send'
aarch64-linux-ld: drivers/remoteproc/qcom_q6v5.o: in function `qcom_q6v5_deinit':
(.text+0x2e4): undefined reference to `qmp_put'
aarch64-linux-ld: drivers/remoteproc/qcom_q6v5.o: in function `qcom_q6v5_init':
(.text+0x778): undefined reference to `qmp_get'
aarch64-linux-ld: (.text+0x7d8): undefined reference to `qmp_put'

Fixes: c1fe10d238c0 ("remoteproc: qcom: q6v5: Use qmp_send to update co-processor load state")
Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
Reported-by: kernel test robot <lkp@...el.com>
Cc: Bjorn Andersson <bjorn.andersson@...aro.org>
Cc: Mathieu Poirier <mathieu.poirier@...aro.org>
Cc: linux-remoteproc@...r.kernel.org
Cc: Sibi Sankar <sibis@...eaurora.org>
Cc: Stephen Boyd <swboyd@...omium.org>
---
 drivers/remoteproc/Kconfig     |    4 ++++
 drivers/remoteproc/qcom_q6v5.c |    1 +
 2 files changed, 5 insertions(+)

--- linux-next-20220114.orig/drivers/remoteproc/qcom_q6v5.c
+++ linux-next-20220114/drivers/remoteproc/qcom_q6v5.c
@@ -10,6 +10,7 @@
 #include <linux/platform_device.h>
 #include <linux/interrupt.h>
 #include <linux/module.h>
+#include <linux/soc/qcom/qcom_aoss.h>
 #include <linux/soc/qcom/smem.h>
 #include <linux/soc/qcom/smem_state.h>
 #include <linux/remoteproc.h>
--- linux-next-20220114.orig/drivers/remoteproc/Kconfig
+++ linux-next-20220114/drivers/remoteproc/Kconfig
@@ -180,6 +180,7 @@ config QCOM_Q6V5_ADSP
 	depends on RPMSG_QCOM_GLINK_SMEM || RPMSG_QCOM_GLINK_SMEM=n
 	depends on QCOM_SYSMON || QCOM_SYSMON=n
 	depends on RPMSG_QCOM_GLINK || RPMSG_QCOM_GLINK=n
+	depends on QCOM_AOSS_QMP || QCOM_AOSS_QMP=n
 	select MFD_SYSCON
 	select QCOM_PIL_INFO
 	select QCOM_MDT_LOADER
@@ -199,6 +200,7 @@ config QCOM_Q6V5_MSS
 	depends on RPMSG_QCOM_GLINK_SMEM || RPMSG_QCOM_GLINK_SMEM=n
 	depends on QCOM_SYSMON || QCOM_SYSMON=n
 	depends on RPMSG_QCOM_GLINK || RPMSG_QCOM_GLINK=n
+	depends on QCOM_AOSS_QMP || QCOM_AOSS_QMP=n
 	select MFD_SYSCON
 	select QCOM_MDT_LOADER
 	select QCOM_PIL_INFO
@@ -218,6 +220,7 @@ config QCOM_Q6V5_PAS
 	depends on RPMSG_QCOM_GLINK_SMEM || RPMSG_QCOM_GLINK_SMEM=n
 	depends on QCOM_SYSMON || QCOM_SYSMON=n
 	depends on RPMSG_QCOM_GLINK || RPMSG_QCOM_GLINK=n
+	depends on QCOM_AOSS_QMP || QCOM_AOSS_QMP=n
 	select MFD_SYSCON
 	select QCOM_PIL_INFO
 	select QCOM_MDT_LOADER
@@ -239,6 +242,7 @@ config QCOM_Q6V5_WCSS
 	depends on RPMSG_QCOM_GLINK_SMEM || RPMSG_QCOM_GLINK_SMEM=n
 	depends on QCOM_SYSMON || QCOM_SYSMON=n
 	depends on RPMSG_QCOM_GLINK || RPMSG_QCOM_GLINK=n
+	depends on QCOM_AOSS_QMP || QCOM_AOSS_QMP=n
 	select MFD_SYSCON
 	select QCOM_MDT_LOADER
 	select QCOM_PIL_INFO