sm3_transform_avx() is called via indirect function calls. Therefore it
needs to use SYM_TYPED_FUNC_START instead of SYM_FUNC_START to cause its
type hash to be emitted when the kernel is built with
CONFIG_CFI_CLANG=y. Otherwise, the code crashes with a CFI failure (if
the compiler didn't happen to optimize out the indirect call).
Fixes:
ccace936eec7 ("x86: Add types to indirectly called assembly functions")
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Sami Tolvanen <samitolvanen@google.com>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
*/
#include <linux/linkage.h>
+#include <linux/cfi_types.h>
#include <asm/frame.h>
/* Context structure */
* const u8 *data, int nblocks);
*/
.align 16
-SYM_FUNC_START(sm3_transform_avx)
+SYM_TYPED_FUNC_START(sm3_transform_avx)
/* input:
* %rdi: ctx, CTX
* %rsi: data (64*nblks bytes)