After commit fd55edff8a0a ("dma-buf: heaps: system: Turn the heap into a
module") the system dma-buf heaps can be built as a module. The
system_cc_shared heap uses set_memory_encrypted and set_memory_decrypted
but those functions are not exported on powerpc. This can result in a
build error like:>> ERROR: modpost: "set_memory_decrypted" >> [drivers/dma-buf/heaps/system_heap.ko] undefined! >> ERROR: modpost: "set_memory_encrypted" >> [drivers/dma-buf/heaps/system_heap.ko] undefined! Export the functions so system_heap.ko can be built. Reported-by: kernel test robot <[email protected]> Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/ Fixes: fd55edff8a0a ("dma-buf: heaps: system: Turn the heap into a module") Signed-off-by: T.J. Mercier <[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..59cf32e51ca3 100644 --- a/arch/powerpc/platforms/pseries/svm.c +++ b/arch/powerpc/platforms/pseries/svm.c @@ -50,6 +50,7 @@ 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 +64,8 @@ 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) -- 2.54.0.746.g67dd491aae-goog
