linux-kernel - [PATCH kunit-next] thunderbolt: test: Reinstate a few casts of bitfields

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Date:   Thu, 24 Jun 2021 01:48:23 -0700
From:   David Gow <davidgow@...gle.com>
To:     Shuah Khan <skhan@...uxfoundation.org>,
        Brendan Higgins <brendanhiggins@...gle.com>
Cc:     David Gow <davidgow@...gle.com>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        linux-usb@...r.kernel.org, kunit-dev@...glegroups.com,
        linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org,
        kernel test robot <lkp@...el.com>
Subject: [PATCH kunit-next] thunderbolt: test: Reinstate a few casts of bitfields

Partially revert "thunderbolt: test: Remove some casts which are no
longer required". It turns out that typeof() doesn't support bitfields,
so these still need to be cast to the appropriate enum.

The only mention of typeof() and bitfields I can find is in the proposal
to standardise them:
http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2619.htm

This was caught by the kernel test robot:
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org/thread/FDKBHAV7QNLNFU5NBI2RKV56DWDSOLGM/

Fixes: 	8f0877c26e ("thunderbolt: test: Remove some casts which are no longer required")
Reported-by: kernel test robot <lkp@...el.com>
Signed-off-by: David Gow <davidgow@...gle.com>
---

Whoops: I didn't notice this was broken earlier. If it's easier to just
revert the broken patch, that's fine, too.

Cheers,
-- David

 drivers/thunderbolt/test.c | 66 +++++++++++++++++++++++++-------------
 1 file changed, 44 insertions(+), 22 deletions(-)

diff --git a/drivers/thunderbolt/test.c b/drivers/thunderbolt/test.c
index 247dc9f4757e..3cc36ef639f3 100644
--- a/drivers/thunderbolt/test.c
+++ b/drivers/thunderbolt/test.c
@@ -384,7 +384,8 @@ static void tb_test_path_single_hop_walk(struct kunit *test)
 		KUNIT_EXPECT_TRUE(test, i < ARRAY_SIZE(test_data));
 		KUNIT_EXPECT_EQ(test, tb_route(p->sw), test_data[i].route);
 		KUNIT_EXPECT_EQ(test, p->port, test_data[i].port);
-		KUNIT_EXPECT_EQ(test, p->config.type, test_data[i].type);
+		KUNIT_EXPECT_EQ(test, (enum tb_port_type)p->config.type,
+				test_data[i].type);
 		i++;
 	}
 
@@ -395,7 +396,8 @@ static void tb_test_path_single_hop_walk(struct kunit *test)
 		KUNIT_EXPECT_TRUE(test, i < ARRAY_SIZE(test_data));
 		KUNIT_EXPECT_EQ(test, tb_route(p->sw), test_data[i].route);
 		KUNIT_EXPECT_EQ(test, p->port, test_data[i].port);
-		KUNIT_EXPECT_EQ(test, p->config.type, test_data[i].type);
+		KUNIT_EXPECT_EQ(test, (enum tb_port_type)p->config.type,
+				test_data[i].type);
 		i--;
 	}
 
@@ -441,7 +443,8 @@ static void tb_test_path_daisy_chain_walk(struct kunit *test)
 		KUNIT_EXPECT_TRUE(test, i < ARRAY_SIZE(test_data));
 		KUNIT_EXPECT_EQ(test, tb_route(p->sw), test_data[i].route);
 		KUNIT_EXPECT_EQ(test, p->port, test_data[i].port);
-		KUNIT_EXPECT_EQ(test, p->config.type, test_data[i].type);
+		KUNIT_EXPECT_EQ(test, (enum tb_port_type)p->config.type,
+				test_data[i].type);
 		i++;
 	}
 
@@ -452,7 +455,8 @@ static void tb_test_path_daisy_chain_walk(struct kunit *test)
 		KUNIT_EXPECT_TRUE(test, i < ARRAY_SIZE(test_data));
 		KUNIT_EXPECT_EQ(test, tb_route(p->sw), test_data[i].route);
 		KUNIT_EXPECT_EQ(test, p->port, test_data[i].port);
-		KUNIT_EXPECT_EQ(test, p->config.type, test_data[i].type);
+		KUNIT_EXPECT_EQ(test, (enum tb_port_type)p->config.type,
+				test_data[i].type);
 		i--;
 	}
 
@@ -502,7 +506,8 @@ static void tb_test_path_simple_tree_walk(struct kunit *test)
 		KUNIT_EXPECT_TRUE(test, i < ARRAY_SIZE(test_data));
 		KUNIT_EXPECT_EQ(test, tb_route(p->sw), test_data[i].route);
 		KUNIT_EXPECT_EQ(test, p->port, test_data[i].port);
-		KUNIT_EXPECT_EQ(test, p->config.type, test_data[i].type);
+		KUNIT_EXPECT_EQ(test, (enum tb_port_type)p->config.type,
+				test_data[i].type);
 		i++;
 	}
 
@@ -513,7 +518,8 @@ static void tb_test_path_simple_tree_walk(struct kunit *test)
 		KUNIT_EXPECT_TRUE(test, i < ARRAY_SIZE(test_data));
 		KUNIT_EXPECT_EQ(test, tb_route(p->sw), test_data[i].route);
 		KUNIT_EXPECT_EQ(test, p->port, test_data[i].port);
-		KUNIT_EXPECT_EQ(test, p->config.type, test_data[i].type);
+		KUNIT_EXPECT_EQ(test, (enum tb_port_type)p->config.type,
+				test_data[i].type);
 		i--;
 	}
 
@@ -584,7 +590,8 @@ static void tb_test_path_complex_tree_walk(struct kunit *test)
 		KUNIT_EXPECT_TRUE(test, i < ARRAY_SIZE(test_data));
 		KUNIT_EXPECT_EQ(test, tb_route(p->sw), test_data[i].route);
 		KUNIT_EXPECT_EQ(test, p->port, test_data[i].port);
-		KUNIT_EXPECT_EQ(test, p->config.type, test_data[i].type);
+		KUNIT_EXPECT_EQ(test, (enum tb_port_type)p->config.type,
+				test_data[i].type);
 		i++;
 	}
 
@@ -595,7 +602,8 @@ static void tb_test_path_complex_tree_walk(struct kunit *test)
 		KUNIT_EXPECT_TRUE(test, i < ARRAY_SIZE(test_data));
 		KUNIT_EXPECT_EQ(test, tb_route(p->sw), test_data[i].route);
 		KUNIT_EXPECT_EQ(test, p->port, test_data[i].port);
-		KUNIT_EXPECT_EQ(test, p->config.type, test_data[i].type);
+		KUNIT_EXPECT_EQ(test, (enum tb_port_type)p->config.type,
+				test_data[i].type);
 		i--;
 	}
 
@@ -685,7 +693,8 @@ static void tb_test_path_max_length_walk(struct kunit *test)
 		KUNIT_EXPECT_TRUE(test, i < ARRAY_SIZE(test_data));
 		KUNIT_EXPECT_EQ(test, tb_route(p->sw), test_data[i].route);
 		KUNIT_EXPECT_EQ(test, p->port, test_data[i].port);
-		KUNIT_EXPECT_EQ(test, p->config.type, test_data[i].type);
+		KUNIT_EXPECT_EQ(test, (enum tb_port_type)p->config.type,
+				test_data[i].type);
 		i++;
 	}
 
@@ -696,7 +705,8 @@ static void tb_test_path_max_length_walk(struct kunit *test)
 		KUNIT_EXPECT_TRUE(test, i < ARRAY_SIZE(test_data));
 		KUNIT_EXPECT_EQ(test, tb_route(p->sw), test_data[i].route);
 		KUNIT_EXPECT_EQ(test, p->port, test_data[i].port);
-		KUNIT_EXPECT_EQ(test, p->config.type, test_data[i].type);
+		KUNIT_EXPECT_EQ(test, (enum tb_port_type)p->config.type,
+				test_data[i].type);
 		i--;
 	}
 
@@ -779,10 +789,12 @@ static void tb_test_path_not_bonded_lane0(struct kunit *test)
 
 		KUNIT_EXPECT_EQ(test, tb_route(in_port->sw), test_data[i].route);
 		KUNIT_EXPECT_EQ(test, in_port->port, test_data[i].in_port);
-		KUNIT_EXPECT_EQ(test, in_port->config.type, test_data[i].in_type);
+		KUNIT_EXPECT_EQ(test, (enum tb_port_type)in_port->config.type,
+				test_data[i].in_type);
 		KUNIT_EXPECT_EQ(test, tb_route(out_port->sw), test_data[i].route);
 		KUNIT_EXPECT_EQ(test, out_port->port, test_data[i].out_port);
-		KUNIT_EXPECT_EQ(test, out_port->config.type, test_data[i].out_type);
+		KUNIT_EXPECT_EQ(test, (enum tb_port_type)out_port->config.type,
+				test_data[i].out_type);
 	}
 	tb_path_free(path);
 }
@@ -839,10 +851,12 @@ static void tb_test_path_not_bonded_lane1(struct kunit *test)
 
 		KUNIT_EXPECT_EQ(test, tb_route(in_port->sw), test_data[i].route);
 		KUNIT_EXPECT_EQ(test, in_port->port, test_data[i].in_port);
-		KUNIT_EXPECT_EQ(test, in_port->config.type, test_data[i].in_type);
+		KUNIT_EXPECT_EQ(test, (enum tb_port_type)in_port->config.type,
+				test_data[i].in_type);
 		KUNIT_EXPECT_EQ(test, tb_route(out_port->sw), test_data[i].route);
 		KUNIT_EXPECT_EQ(test, out_port->port, test_data[i].out_port);
-		KUNIT_EXPECT_EQ(test, out_port->config.type, test_data[i].out_type);
+		KUNIT_EXPECT_EQ(test, (enum tb_port_type)out_port->config.type,
+				test_data[i].out_type);
 	}
 	tb_path_free(path);
 }
@@ -917,10 +931,12 @@ static void tb_test_path_not_bonded_lane1_chain(struct kunit *test)
 
 		KUNIT_EXPECT_EQ(test, tb_route(in_port->sw), test_data[i].route);
 		KUNIT_EXPECT_EQ(test, in_port->port, test_data[i].in_port);
-		KUNIT_EXPECT_EQ(test, in_port->config.type, test_data[i].in_type);
+		KUNIT_EXPECT_EQ(test, (enum tb_port_type)in_port->config.type,
+				test_data[i].in_type);
 		KUNIT_EXPECT_EQ(test, tb_route(out_port->sw), test_data[i].route);
 		KUNIT_EXPECT_EQ(test, out_port->port, test_data[i].out_port);
-		KUNIT_EXPECT_EQ(test, out_port->config.type, test_data[i].out_type);
+		KUNIT_EXPECT_EQ(test, (enum tb_port_type)out_port->config.type,
+				test_data[i].out_type);
 	}
 	tb_path_free(path);
 }
@@ -995,10 +1011,12 @@ static void tb_test_path_not_bonded_lane1_chain_reverse(struct kunit *test)
 
 		KUNIT_EXPECT_EQ(test, tb_route(in_port->sw), test_data[i].route);
 		KUNIT_EXPECT_EQ(test, in_port->port, test_data[i].in_port);
-		KUNIT_EXPECT_EQ(test, in_port->config.type, test_data[i].in_type);
+		KUNIT_EXPECT_EQ(test, (enum tb_port_type)in_port->config.type,
+				test_data[i].in_type);
 		KUNIT_EXPECT_EQ(test, tb_route(out_port->sw), test_data[i].route);
 		KUNIT_EXPECT_EQ(test, out_port->port, test_data[i].out_port);
-		KUNIT_EXPECT_EQ(test, out_port->config.type, test_data[i].out_type);
+		KUNIT_EXPECT_EQ(test, (enum tb_port_type)out_port->config.type,
+				test_data[i].out_type);
 	}
 	tb_path_free(path);
 }
@@ -1085,10 +1103,12 @@ static void tb_test_path_mixed_chain(struct kunit *test)
 
 		KUNIT_EXPECT_EQ(test, tb_route(in_port->sw), test_data[i].route);
 		KUNIT_EXPECT_EQ(test, in_port->port, test_data[i].in_port);
-		KUNIT_EXPECT_EQ(test, in_port->config.type, test_data[i].in_type);
+		KUNIT_EXPECT_EQ(test, (enum tb_port_type)in_port->config.type,
+				test_data[i].in_type);
 		KUNIT_EXPECT_EQ(test, tb_route(out_port->sw), test_data[i].route);
 		KUNIT_EXPECT_EQ(test, out_port->port, test_data[i].out_port);
-		KUNIT_EXPECT_EQ(test, out_port->config.type, test_data[i].out_type);
+		KUNIT_EXPECT_EQ(test, (enum tb_port_type)out_port->config.type,
+				test_data[i].out_type);
 	}
 	tb_path_free(path);
 }
@@ -1175,10 +1195,12 @@ static void tb_test_path_mixed_chain_reverse(struct kunit *test)
 
 		KUNIT_EXPECT_EQ(test, tb_route(in_port->sw), test_data[i].route);
 		KUNIT_EXPECT_EQ(test, in_port->port, test_data[i].in_port);
-		KUNIT_EXPECT_EQ(test, in_port->config.type, test_data[i].in_type);
+		KUNIT_EXPECT_EQ(test, (enum tb_port_type)in_port->config.type,
+				test_data[i].in_type);
 		KUNIT_EXPECT_EQ(test, tb_route(out_port->sw), test_data[i].route);
 		KUNIT_EXPECT_EQ(test, out_port->port, test_data[i].out_port);
-		KUNIT_EXPECT_EQ(test, out_port->config.type, test_data[i].out_type);
+		KUNIT_EXPECT_EQ(test, (enum tb_port_type)out_port->config.type,
+				test_data[i].out_type);
 	}
 	tb_path_free(path);
 }
-- 
2.32.0.288.g62a8d224e6-goog