Hi Arnd,
Le 26/05/2026 à 12:20, Arnd Bergmann a écrit :
From: Arnd Bergmann <[email protected]>
The set_memory_encrypted/set_memory_decrypted functions are exported
on x86 and arm64 but not on powerpc, which leads to a new build failure
because they are now used in a loadable module:
ERROR: modpost: "set_memory_encrypted" [drivers/dma-buf/heaps/system_heap.ko]
undefined!
ERROR: modpost: "set_memory_decrypted" [drivers/dma-buf/heaps/system_heap.ko]
undefined!
Export these the same way we do on the other architectures.
The same fix was rejected already, see
https://lore.kernel.org/all/[email protected]/
Christophe
Fixes: fd55edff8a0a ("dma-buf: heaps: system: Turn the heap into a module")
Signed-off-by: Arnd Bergmann <[email protected]>
---
arch/powerpc/platforms/pseries/svm.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/powerpc/platforms/pseries/svm.c
b/arch/powerpc/platforms/pseries/svm.c
index 384c9dc1899a..ab8f8c722741 100644
--- a/arch/powerpc/platforms/pseries/svm.c
+++ b/arch/powerpc/platforms/pseries/svm.c
@@ -6,6 +6,7 @@
* Author: Anshuman Khandual <[email protected]>
*/
+#include <linux/export.h>
#include <linux/mm.h>
#include <linux/memblock.h>
#include <linux/mem_encrypt.h>
@@ -50,6 +51,7 @@ int set_memory_encrypted(unsigned long addr, int numpages)
return 0;
}
+EXPORT_SYMBOL_GPL(set_memory_encrypted);
int set_memory_decrypted(unsigned long addr, int numpages)
{
@@ -63,6 +65,7 @@ int set_memory_decrypted(unsigned long addr, int numpages)
return 0;
}
+EXPORT_SYMBOL_GPL(set_memory_decrypted);
/* There's one dispatch log per CPU. */
#define NR_DTL_PAGE (DISPATCH_LOG_BYTES * CONFIG_NR_CPUS / PAGE_SIZE)
