powerpc/crypto: Add cond_resched() in crc-vpmsum self-test

The stress test for vpmsum implementations executes a long for loop in
the kernel. This blocks the scheduler, which prevents other tasks from
running, resulting in a warning.

This fix adds a call to cond_reshed() at the end of each loop, which
allows the scheduler to run other tasks as required.

Signed-off-by: Chris Smart <chris.smart@humanservices.gov.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20191103233356.5472-1-chris.smart@humanservices.gov.au

diff --git a/arch/powerpc/crypto/crc-vpmsum_test.c b/arch/powerpc/crypto/crc-vpmsum_test.c
index 47985219a68f695aa56249a79f01c53d08a3a5fa..dce86e75f1a8a4ffe7637741c0308528966017a4 100644 (file)
--- a/arch/powerpc/crypto/crc-vpmsum_test.c
+++ b/arch/powerpc/crypto/crc-vpmsum_test.c
@@ -103,6 +103,7 @@ static int __init crc_test_init(void)
                                       crc32, verify32, len);
                                break;
                        }
+               cond_resched();
                }
                pr_info("crc-vpmsum_test done, completed %lu iterations\n", i);
        } while (0);