From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Subject: dmaengine: pl330: fix irq race with terminate_all From: John Keeping Message-Id: <20180717104816.17044-1-john@metanate.com> Date: Tue, 17 Jul 2018 11:48:16 +0100 To: dmaengine@vger.kernel.org Cc: Vinod Koul , Dan Williams , linux-kernel@vger.kernel.org, John Keeping List-ID: SW4gcGwzMzBfdXBkYXRlKCkgd2hlbiBjaGVja2luZyBpZiBhIGNoYW5uZWwgaGFzIGJlZW4gYWJv cnRlZCwgdGhlCmNoYW5uZWwncyBsb2NrIGlzIG5vdCB0YWtlbiwgb25seSB0aGUgb3ZlcmFsbCBw bDMzMF9kbWFjIGxvY2suICBCdXQgaW4KcGwzMzBfdGVybWluYXRlX2FsbCgpIHRoZSBhYm9ydGVk IGZsYWcgKHJlcV9ydW5uaW5nPT0tMSkgaXMgc2V0IHVuZGVyCnRoZSBjaGFubmVsIGxvY2sgYW5k IG5vdCB0aGUgcGwzMzBfZG1hYyBsb2NrLgoKV2l0aCB0aHJlYWRlZCBpbnRlcnJ1cHRzLCB0aGlz IGxlYWRzIHRvIGEgcG90ZW50aWFsIHJhY2U6CgogICAgcGwzMzBfdGVybWluYXRlX2FsbAkgICAg ICAgIHBsMzMwX3VwZGF0ZQogICAgLS0tLS0tLS0tLS0tLS0tLS0tLSAgICAgICAgIC0tLS0tLS0t LS0tLQogICAgbG9jayBjaGFubmVsCiAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgZW50 cnkKICAgIGxvY2sgcGwzMzAKICAgIF9zdG9wIGNoYW5uZWwKICAgIHVubG9jayBwbDMzMAogICAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgIGxvY2sgcGwzMzAKICAgICAgICAgICAgICAgICAg ICAgICAgICAgICAgICBjaGVjayByZXFfcnVubmluZyAhPSAtMQogICAgcmVxX3J1bm5pbmcgPSAt MQogICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIF9zdGFydCBjaGFubmVsCgpTaWduZWQt b2ZmLWJ5OiBKb2huIEtlZXBpbmcgPGpvaG5AbWV0YW5hdGUuY29tPgotLS0KIGRyaXZlcnMvZG1h L3BsMzMwLmMgfCA1ICsrKy0tCiAxIGZpbGUgY2hhbmdlZCwgMyBpbnNlcnRpb25zKCspLCAyIGRl bGV0aW9ucygtKQoKZGlmZiAtLWdpdCBhL2RyaXZlcnMvZG1hL3BsMzMwLmMgYi9kcml2ZXJzL2Rt YS9wbDMzMC5jCmluZGV4IDM3MGRmMmU3NGRkZC4uODg3NTBhMzRlODU5IDEwMDY0NAotLS0gYS9k cml2ZXJzL2RtYS9wbDMzMC5jCisrKyBiL2RyaXZlcnMvZG1hL3BsMzMwLmMKQEAgLTIyNTYsMTMg KzIyNTYsMTQgQEAgc3RhdGljIGludCBwbDMzMF90ZXJtaW5hdGVfYWxsKHN0cnVjdCBkbWFfY2hh biAqY2hhbikKIAogCXBtX3J1bnRpbWVfZ2V0X3N5bmMocGwzMzAtPmRkbWEuZGV2KTsKIAlzcGlu X2xvY2tfaXJxc2F2ZSgmcGNoLT5sb2NrLCBmbGFncyk7CisKIAlzcGluX2xvY2soJnBsMzMwLT5s b2NrKTsKIAlfc3RvcChwY2gtPnRocmVhZCk7Ci0Jc3Bpbl91bmxvY2soJnBsMzMwLT5sb2NrKTsK LQogCXBjaC0+dGhyZWFkLT5yZXFbMF0uZGVzYyA9IE5VTEw7CiAJcGNoLT50aHJlYWQtPnJlcVsx XS5kZXNjID0gTlVMTDsKIAlwY2gtPnRocmVhZC0+cmVxX3J1bm5pbmcgPSAtMTsKKwlzcGluX3Vu bG9jaygmcGwzMzAtPmxvY2spOworCiAJcG93ZXJfZG93biA9IHBjaC0+YWN0aXZlOwogCXBjaC0+ YWN0aXZlID0gZmFsc2U7CiAK