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: [2/2] dmaengine: sh: rcar-dmac: Fix glitch in dmaengine_tx_status From: Dirk Behme Message-Id: <20190304075610.10810-2-dirk.behme@de.bosch.com> Date: Mon, 4 Mar 2019 08:56:10 +0100 To: linux-renesas-soc@vger.kernel.org Cc: dmaengine@vger.kernel.org, vkoul@kernel.org, geert+renesas@glider.be, niklas.soderlund+renesas@ragnatech.se, laurent.pinchart+renesas@ideasonboard.com, Achim.Dahlhoff@de.bosch.com, dirk.behme@de.bosch.com, stable@vger.kernel.org List-ID: RnJvbTogQWNoaW0gRGFobGhvZmYgPEFjaGltLkRhaGxob2ZmQGRlLmJvc2NoLmNvbT4KClRoZSB0 eF9zdGF0dXMgcG9sbCBpbiB0aGUgcmNhcl9kbWFjIGRyaXZlciByZWFkcyB0aGUgc3RhdHVzIHJl Z2lzdGVyCndoaWNoIGluZGljYXRlcyB3aGljaCBjaHVuayBpcyBidXN5IChETUFDSENSQikuIEFm dGVyd2FyZHMgdGhlIHBvaW50Cmluc2lkZSB0aGUgY2h1bmsgaXMgcmVhZCBmcm9tIERNQVRDUkIu IEl0IGlzIHBvc3NpYmxlIHRoYXQgdGhlIGNodW5rCmhhcyBjaGFuZ2VkIGJldHdlZW4gdGhlIHR3 byByZWFkcy4gVGhlIHJlc3VsdCBpcyBhIG5vbi1tb25vdG9ub3VzCmluY3JlYXNlIG9mIHRoZSBy ZXNpZHVlLiBGaXggdGhpcyBieSBpbnRyb2R1Y2luZyBhICdzYWZlIHJlYWQnIGxvZ2ljLgoKRml4 ZXM6IDczYTQ3YmQwZGE2NiAoImRtYWVuZ2luZTogcmNhci1kbWFjOiB1c2UgVENSQiBpbnN0ZWFk IG9mIFRDUiBmb3IgcmVzaWR1ZSIpClNpZ25lZC1vZmYtYnk6IEFjaGltIERhaGxob2ZmIDxBY2hp bS5EYWhsaG9mZkBkZS5ib3NjaC5jb20+ClNpZ25lZC1vZmYtYnk6IERpcmsgQmVobWUgPGRpcmsu YmVobWVAZGUuYm9zY2guY29tPgpDYzogPHN0YWJsZUB2Z2VyLmtlcm5lbC5vcmc+ICMgdjQuMTYr Ci0tLQpOb3RlOiBQYXRjaCBkb25lIGFnYWluc3QgbWFpbmxpbmUgdjUuMAoKIGRyaXZlcnMvZG1h L3NoL3JjYXItZG1hYy5jIHwgMjQgKysrKysrKysrKysrKysrKysrKysrLS0tCiAxIGZpbGUgY2hh bmdlZCwgMjEgaW5zZXJ0aW9ucygrKSwgMyBkZWxldGlvbnMoLSkKCmRpZmYgLS1naXQgYS9kcml2 ZXJzL2RtYS9zaC9yY2FyLWRtYWMuYyBiL2RyaXZlcnMvZG1hL3NoL3JjYXItZG1hYy5jCmluZGV4 IDJlYTU5MjI5ZDdmNS4uYjhhZmQ3ZjRlMDdjIDEwMDY0NAotLS0gYS9kcml2ZXJzL2RtYS9zaC9y Y2FyLWRtYWMuYworKysgYi9kcml2ZXJzL2RtYS9zaC9yY2FyLWRtYWMuYwpAQCAtMTI3Myw2ICsx MjczLDEzIEBAIHN0YXRpYyBpbnQgcmNhcl9kbWFjX2NoYW5fdGVybWluYXRlX2FsbChzdHJ1Y3Qg ZG1hX2NoYW4gKmNoYW4pCiAJcmV0dXJuIDA7CiB9CiAKK3N0YXRpYyBpbmxpbmUKK3Vuc2lnbmVk IGludCByY2FyX2RtYWNfcmVhZF9jaGNyYl9tYXNrKHN0cnVjdCByY2FyX2RtYWNfY2hhbiAqY2hh bikKK3sKKwlyZXR1cm4gcmNhcl9kbWFjX2NoYW5fcmVhZChjaGFuLCBSQ0FSX0RNQUNIQ1JCKSAm CisJCQkJICAgUkNBUl9ETUFDSENSQl9EUFRSX01BU0s7Cit9CisKIHN0YXRpYyB1bnNpZ25lZCBp bnQgcmNhcl9kbWFjX2NoYW5fZ2V0X3Jlc2lkdWUoc3RydWN0IHJjYXJfZG1hY19jaGFuICpjaGFu LAogCQkJCQkgICAgICAgZG1hX2Nvb2tpZV90IGNvb2tpZSkKIHsKQEAgLTEyODIsNiArMTI4OSw3 IEBAIHN0YXRpYyB1bnNpZ25lZCBpbnQgcmNhcl9kbWFjX2NoYW5fZ2V0X3Jlc2lkdWUoc3RydWN0 IHJjYXJfZG1hY19jaGFuICpjaGFuLAogCWVudW0gZG1hX3N0YXR1cyBzdGF0dXM7CiAJdW5zaWdu ZWQgaW50IHJlc2lkdWUgPSAwOwogCXVuc2lnbmVkIGludCBkcHRyID0gMDsKKwl1bnNpZ25lZCBp bnQgdGNyYiwgY2hjcmI7CiAKIAlpZiAoIWRlc2MpCiAJCXJldHVybiAwOwpAQCAtMTMyOSw2ICsx MzM3LDE3IEBAIHN0YXRpYyB1bnNpZ25lZCBpbnQgcmNhcl9kbWFjX2NoYW5fZ2V0X3Jlc2lkdWUo c3RydWN0IHJjYXJfZG1hY19jaGFuICpjaGFuLAogCQlyZXR1cm4gMDsKIAl9CiAKKwkvKgorCSAq IFdlIG5lZWQgdG8gcmVhZCB0d28gcmVnaXN0ZXJzLgorCSAqIE1ha2Ugc3VyZSB0aGUgY29udHJv bCByZWdpc3RlciBkb2VzIG5vdCBza2lwIHRvIG5leHQgY2h1bmsKKwkgKiB3aGlsZSByZWFkaW5n IHRoZSBjb3VudGVyLgorCSAqLworIHJldHJ5OgorCWNoY3JiID0gcmNhcl9kbWFjX3JlYWRfY2hj cmJfbWFzayhjaGFuKTsKKwl0Y3JiID0gcmNhcl9kbWFjX2NoYW5fcmVhZChjaGFuLCBSQ0FSX0RN QVRDUkIpOworCWlmIChjaGNyYiAhPSByY2FyX2RtYWNfcmVhZF9jaGNyYl9tYXNrKGNoYW4pKSAv KiBTdGlsbCB0aGUgc2FtZT8gKi8KKwkJZ290byByZXRyeTsKKwogCS8qCiAJICogSW4gZGVzY3Jp cHRvciBtb2RlIHRoZSBkZXNjcmlwdG9yIHJ1bm5pbmcgcG9pbnRlciBpcyBub3QgbWFpbnRhaW5l ZAogCSAqIGJ5IHRoZSBpbnRlcnJ1cHQgaGFuZGxlciwgZmluZCB0aGUgcnVubmluZyBkZXNjcmlw dG9yIGZyb20gdGhlCkBAIC0xMzM2LDggKzEzNTUsNyBAQCBzdGF0aWMgdW5zaWduZWQgaW50IHJj YXJfZG1hY19jaGFuX2dldF9yZXNpZHVlKHN0cnVjdCByY2FyX2RtYWNfY2hhbiAqY2hhbiwKIAkg KiBtb2RlIGp1c3QgdXNlIHRoZSBydW5uaW5nIGRlc2NyaXB0b3IgcG9pbnRlci4KIAkgKi8KIAlp ZiAoZGVzYy0+aHdkZXNjcy51c2UpIHsKLQkJZHB0ciA9IChyY2FyX2RtYWNfY2hhbl9yZWFkKGNo YW4sIFJDQVJfRE1BQ0hDUkIpICYKLQkJCVJDQVJfRE1BQ0hDUkJfRFBUUl9NQVNLKSA+PiBSQ0FS X0RNQUNIQ1JCX0RQVFJfU0hJRlQ7CisJCWRwdHIgPSBjaGNyYiA+PiBSQ0FSX0RNQUNIQ1JCX0RQ VFJfU0hJRlQ7CiAJCWlmIChkcHRyID09IDApCiAJCQlkcHRyID0gZGVzYy0+bmNodW5rczsKIAkJ ZHB0ci0tOwpAQCAtMTM1NSw3ICsxMzczLDcgQEAgc3RhdGljIHVuc2lnbmVkIGludCByY2FyX2Rt YWNfY2hhbl9nZXRfcmVzaWR1ZShzdHJ1Y3QgcmNhcl9kbWFjX2NoYW4gKmNoYW4sCiAJfQogCiAJ LyogQWRkIHRoZSByZXNpZHVlIGZvciB0aGUgY3VycmVudCBjaHVuay4gKi8KLQlyZXNpZHVlICs9 IHJjYXJfZG1hY19jaGFuX3JlYWQoY2hhbiwgUkNBUl9ETUFUQ1JCKSA8PCBkZXNjLT54ZmVyX3No aWZ0OworCXJlc2lkdWUgKz0gdGNyYiA8PCBkZXNjLT54ZmVyX3NoaWZ0OwogCiAJcmV0dXJuIHJl c2lkdWU7CiB9Cg==