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* [PATCH] remoteproc: stm32: fix building without ARM SMCC
@ 2019-07-08 12:42 Arnd Bergmann
  2019-07-08 14:07 ` Bjorn Andersson
  0 siblings, 1 reply; 2+ messages in thread
From: Arnd Bergmann @ 2019-07-08 12:42 UTC (permalink / raw)
  To: Ohad Ben-Cohen, Bjorn Andersson, Maxime Coquelin,
	Alexandre Torgue
  Cc: Arnd Bergmann, Fabien Dessenne, Ludovic Barre, Loic Pallardy,
	Arnaud Pouliquen, linux-remoteproc, linux-stm32, linux-arm-kernel,
	linux-kernel

When compile testing this driver without SMCC support enabled,
we get a link error:

drivers/remoteproc/stm32_rproc.o: In function `stm32_rproc_start':
stm32_rproc.c:(.text+0x776): undefined reference to `__arm_smccc_smc'
drivers/remoteproc/stm32_rproc.o: In function `stm32_rproc_stop':
stm32_rproc.c:(.text+0x92c): undefined reference to `__arm_smccc_smc'

Make the actual call to arm_smccc_smc conditional on the Kconfig
symbol controlling its implementation.

Fixes: 13140de09cc2 ("remoteproc: stm32: add an ST stm32_rproc driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 drivers/remoteproc/stm32_rproc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/remoteproc/stm32_rproc.c b/drivers/remoteproc/stm32_rproc.c
index e83077b9ebf5..e2da7198b65f 100644
--- a/drivers/remoteproc/stm32_rproc.c
+++ b/drivers/remoteproc/stm32_rproc.c
@@ -344,7 +344,7 @@ static int stm32_rproc_set_hold_boot(struct rproc *rproc, bool hold)
 
 	val = hold ? HOLD_BOOT : RELEASE_BOOT;
 
-	if (ddata->secured_soc) {
+	if (IS_ENABLED(CONFIG_HAVE_ARM_SMCCC) && ddata->secured_soc) {
 		arm_smccc_smc(STM32_SMC_RCC, STM32_SMC_REG_WRITE,
 			      hold_boot.reg, val, 0, 0, 0, 0, &smc_res);
 		err = smc_res.a0;
-- 
2.20.0


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2019-07-08 12:42 [PATCH] remoteproc: stm32: fix building without ARM SMCC Arnd Bergmann
2019-07-08 14:07 ` Bjorn Andersson

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