[PATCH v3 1/1] memory: Fix export symbol twice compiler error for "export symbols for memory related functions" patch

Wei Chin Tsai
2023-06-14T15:39:32Z

User could not add the export symbol "arch_vma_name"
in arch/arm/kernel/process.c and kernel/signal.c both.
It would cause the export symbol twice compiler error
Reported-by: kernel test robot <lkp@intel.com>

Signed-off-by: Wei Chin Tsai <Wei-chin.Tsai@mediatek.com>
---
arch/arm/kernel/process.c | 3 +++
kernel/signal.c | 3 +++
2 files changed, 6 insertions(+)

diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index df91412a1069..d71a9bafb584 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -343,7 +343,10 @@ const char *arch_vma_name(struct vm_area_struct *vma)
{
return is_gate_vma(vma) ? "[vectors]" : NULL;
}
+
+#ifdef CONFIG_ARM
EXPORT_SYMBOL_GPL(arch_vma_name);
+#endif

/* If possible, provide a placement hint at a random offset from the
* stack for the sigpage and vdso pages.
diff --git a/kernel/signal.c b/kernel/signal.c
index a1abe77fcdc3..f7d03450781e 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -4700,7 +4700,10 @@ __weak const char *arch_vma_name(struct vm_area_struct *vma)
{
return NULL;
}
+
+#ifdef CONFIG_ARM64
EXPORT_SYMBOL_GPL(arch_vma_name);
+#endif

static inline void siginfo_buildtime_checks(void)
{
--
2.18.0