[PATCH] spl: add __noreturn attribute to spl_invoke_atf function

Chanho Park chanho61.park at samsung.com
Fri Sep 8 10:08:56 CEST 2023


spl_invoke_atf function will not be returned to SPL. Thus, we need to
set __noreturn function attribute to the function.

Signed-off-by: Chanho Park <chanho61.park at samsung.com>
---
 common/spl/spl_atf.c | 8 ++++----
 include/spl.h        | 2 +-
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/common/spl/spl_atf.c b/common/spl/spl_atf.c
index 2c10252834f6..3bdd013a35fe 100644
--- a/common/spl/spl_atf.c
+++ b/common/spl/spl_atf.c
@@ -187,10 +187,10 @@ static inline void raw_write_daif(unsigned int daif)
 	__asm__ __volatile__("msr DAIF, %x0\n\t" : : "r" (daif) : "memory");
 }
 
-typedef void (*atf_entry_t)(struct bl31_params *params, void *plat_params);
+typedef void __noreturn (*atf_entry_t)(struct bl31_params *params, void *plat_params);
 
-static void bl31_entry(uintptr_t bl31_entry, uintptr_t bl32_entry,
-		       uintptr_t bl33_entry, uintptr_t fdt_addr)
+static void __noreturn bl31_entry(uintptr_t bl31_entry, uintptr_t bl32_entry,
+				  uintptr_t bl33_entry, uintptr_t fdt_addr)
 {
 	atf_entry_t  atf_entry = (atf_entry_t)bl31_entry;
 	void *bl31_params;
@@ -251,7 +251,7 @@ uintptr_t spl_fit_images_get_entry(void *blob, int node)
 	return val;
 }
 
-void spl_invoke_atf(struct spl_image_info *spl_image)
+void __noreturn spl_invoke_atf(struct spl_image_info *spl_image)
 {
 	uintptr_t  bl32_entry = 0;
 	uintptr_t  bl33_entry = CONFIG_TEXT_BASE;
diff --git a/include/spl.h b/include/spl.h
index 93e906431e7d..01ed8f58afd8 100644
--- a/include/spl.h
+++ b/include/spl.h
@@ -770,7 +770,7 @@ int spl_ymodem_load_image(struct spl_image_info *spl_image,
 /**
  * spl_invoke_atf - boot using an ARM trusted firmware image
  */
-void spl_invoke_atf(struct spl_image_info *spl_image);
+void __noreturn spl_invoke_atf(struct spl_image_info *spl_image);
 
 /**
  * bl2_plat_get_bl31_params() - return params for bl31.
-- 
2.39.2



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