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: [6/7] dmaengine: stm32-dma: fix max items per transfer From: Joel Fernandes Message-Id: <20181009054752.145978-7-joel@joelfernandes.org> Date: Mon, 8 Oct 2018 22:47:51 -0700 To: stable@vger.kernel.org Cc: Pierre Yves MORDRET , Vinod Koul , gregkh@linuxfoundation.org, Alexandre Torgue , Dan Williams , dmaengine@vger.kernel.org, "Joel Fernandes (Google)" , "moderated list:ARM/STM32 ARCHITECTURE" , linux-kernel@vger.kernel.org, Maxime Coquelin List-ID: RnJvbTogUGllcnJlIFl2ZXMgTU9SRFJFVCA8cGllcnJlLXl2ZXMubW9yZHJldEBzdC5jb20+CgpI YXZpbmcgMCBpbiBpdGVtIGNvdW50ZXIgcmVnaXN0ZXIgaXMgdmFsaWQgYW5kIHN0YW5kcyBmb3Ig YSAiTm8gb3IgRW5kZWQKdHJhbnNmZXIiLiBUaGVyZWZvcmUgdmFsaWQgdHJhbnNmZXIgc3RhcnRz IGZyb20gQCswIHRvIEArMHhGRkZFIGxlYWRpbmcgdG8KdW5hbGlnbmVkIHNjYXR0ZXIgZ2F0aGVy IGF0IGJvdW5kYXJ5LiBUaHVzIGl0J3Mgc2FmZXIgdG8gcm91bmQgZG93biB0aGlzCnZhbHVlIG9u IGl0cyBGSUZPIHNpemUgKDE2IEJ5dGVzKS4KClNpZ25lZC1vZmYtYnk6IFBpZXJyZS1ZdmVzIE1P UkRSRVQgPHBpZXJyZS15dmVzLm1vcmRyZXRAc3QuY29tPgpTaWduZWQtb2ZmLWJ5OiBWaW5vZCBL b3VsIDx2aW5vZC5rb3VsQGludGVsLmNvbT4KLS0tCiBkcml2ZXJzL2RtYS9zdG0zMi1kbWEuYyB8 IDE5ICsrKysrKysrKysrLS0tLS0tLS0KIDEgZmlsZSBjaGFuZ2VkLCAxMSBpbnNlcnRpb25zKCsp LCA4IGRlbGV0aW9ucygtKQoKZGlmZiAtLWdpdCBhL2RyaXZlcnMvZG1hL3N0bTMyLWRtYS5jIGIv ZHJpdmVycy9kbWEvc3RtMzItZG1hLmMKaW5kZXggYjQwNDg2NDU0YTJjLi4wNWEyOTc0Y2QyYzAg MTAwNjQ0Ci0tLSBhL2RyaXZlcnMvZG1hL3N0bTMyLWRtYS5jCisrKyBiL2RyaXZlcnMvZG1hL3N0 bTMyLWRtYS5jCkBAIC0zOCwxMCArMzgsNiBAQAogI2RlZmluZSBTVE0zMl9ETUFfVEVJCQkJQklU KDMpIC8qIFRyYW5zZmVyIEVycm9yIEludGVycnVwdCAqLwogI2RlZmluZSBTVE0zMl9ETUFfRE1F SQkJCUJJVCgyKSAvKiBEaXJlY3QgTW9kZSBFcnJvciBJbnRlcnJ1cHQgKi8KICNkZWZpbmUgU1RN MzJfRE1BX0ZFSQkJCUJJVCgwKSAvKiBGSUZPIEVycm9yIEludGVycnVwdCAqLwotI2RlZmluZSBT VE0zMl9ETUFfTUFTS0kJCQkoU1RNMzJfRE1BX1RDSSBcCi0JCQkJCSB8IFNUTTMyX0RNQV9URUkg XAotCQkJCQkgfCBTVE0zMl9ETUFfRE1FSSBcCi0JCQkJCSB8IFNUTTMyX0RNQV9GRUkpCiAKIC8q IERNQSBTdHJlYW0geCBDb25maWd1cmF0aW9uIFJlZ2lzdGVyICovCiAjZGVmaW5lIFNUTTMyX0RN QV9TQ1IoeCkJCSgweDAwMTAgKyAweDE4ICogKHgpKSAvKiB4ID0gMC4uNyAqLwpAQCAtMTE4LDYg KzExNCwxMyBAQAogI2RlZmluZSBTVE0zMl9ETUFfRklGT19USFJFU0hPTERfRlVMTAkJCTB4MDMK IAogI2RlZmluZSBTVE0zMl9ETUFfTUFYX0RBVEFfSVRFTVMJMHhmZmZmCisvKgorICogVmFsaWQg dHJhbnNmZXIgc3RhcnRzIGZyb20gQDAgdG8gQDB4RkZGRSBsZWFkaW5nIHRvIHVuYWxpZ25lZCBz Y2F0dGVyCisgKiBnYXRoZXIgYXQgYm91bmRhcnkuIFRodXMgaXQncyBzYWZlciB0byByb3VuZCBk b3duIHRoaXMgdmFsdWUgb24gRklGTworICogc2l6ZSAoMTYgQnl0ZXMpCisgKi8KKyNkZWZpbmUg U1RNMzJfRE1BX0FMSUdORURfTUFYX0RBVEFfSVRFTVMJXAorCUFMSUdOX0RPV04oU1RNMzJfRE1B X01BWF9EQVRBX0lURU1TLCAxNikKICNkZWZpbmUgU1RNMzJfRE1BX01BWF9DSEFOTkVMUwkJMHgw OAogI2RlZmluZSBTVE0zMl9ETUFfTUFYX1JFUVVFU1RfSUQJMHgwOAogI2RlZmluZSBTVE0zMl9E TUFfTUFYX0RBVEFfUEFSQU0JMHgwMwpAQCAtODY5LDcgKzg3Miw3IEBAIHN0YXRpYyBzdHJ1Y3Qg ZG1hX2FzeW5jX3R4X2Rlc2NyaXB0b3IgKnN0bTMyX2RtYV9wcmVwX3NsYXZlX3NnKAogCQlkZXNj LT5zZ19yZXFbaV0ubGVuID0gc2dfZG1hX2xlbihzZyk7CiAKIAkJbmJfZGF0YV9pdGVtcyA9IGRl c2MtPnNnX3JlcVtpXS5sZW4gLyBidXN3aWR0aDsKLQkJaWYgKG5iX2RhdGFfaXRlbXMgPiBTVE0z Ml9ETUFfTUFYX0RBVEFfSVRFTVMpIHsKKwkJaWYgKG5iX2RhdGFfaXRlbXMgPiBTVE0zMl9ETUFf QUxJR05FRF9NQVhfREFUQV9JVEVNUykgewogCQkJZGV2X2VycihjaGFuMmRldihjaGFuKSwgIm5i IGl0ZW1zIG5vdCBzdXBwb3J0ZWRcbiIpOwogCQkJZ290byBlcnI7CiAJCX0KQEAgLTkzNSw3ICs5 MzgsNyBAQCBzdGF0aWMgc3RydWN0IGRtYV9hc3luY190eF9kZXNjcmlwdG9yICpzdG0zMl9kbWFf cHJlcF9kbWFfY3ljbGljKAogCQlyZXR1cm4gTlVMTDsKIAogCW5iX2RhdGFfaXRlbXMgPSBwZXJp b2RfbGVuIC8gYnVzd2lkdGg7Ci0JaWYgKG5iX2RhdGFfaXRlbXMgPiBTVE0zMl9ETUFfTUFYX0RB VEFfSVRFTVMpIHsKKwlpZiAobmJfZGF0YV9pdGVtcyA+IFNUTTMyX0RNQV9BTElHTkVEX01BWF9E QVRBX0lURU1TKSB7CiAJCWRldl9lcnIoY2hhbjJkZXYoY2hhbiksICJudW1iZXIgb2YgaXRlbXMg bm90IHN1cHBvcnRlZFxuIik7CiAJCXJldHVybiBOVUxMOwogCX0KQEAgLTk4NSw3ICs5ODgsNyBA QCBzdGF0aWMgc3RydWN0IGRtYV9hc3luY190eF9kZXNjcmlwdG9yICpzdG0zMl9kbWFfcHJlcF9k bWFfbWVtY3B5KAogCXUzMiBudW1fc2dzLCBiZXN0X2J1cnN0LCBkbWFfYnVyc3QsIHRocmVzaG9s ZDsKIAlpbnQgaTsKIAotCW51bV9zZ3MgPSBESVZfUk9VTkRfVVAobGVuLCBTVE0zMl9ETUFfTUFY X0RBVEFfSVRFTVMpOworCW51bV9zZ3MgPSBESVZfUk9VTkRfVVAobGVuLCBTVE0zMl9ETUFfQUxJ R05FRF9NQVhfREFUQV9JVEVNUyk7CiAJZGVzYyA9IHN0bTMyX2RtYV9hbGxvY19kZXNjKG51bV9z Z3MpOwogCWlmICghZGVzYykKIAkJcmV0dXJuIE5VTEw7CkBAIC05OTQsNyArOTk3LDcgQEAgc3Rh dGljIHN0cnVjdCBkbWFfYXN5bmNfdHhfZGVzY3JpcHRvciAqc3RtMzJfZG1hX3ByZXBfZG1hX21l bWNweSgKIAogCWZvciAob2Zmc2V0ID0gMCwgaSA9IDA7IG9mZnNldCA8IGxlbjsgb2Zmc2V0ICs9 IHhmZXJfY291bnQsIGkrKykgewogCQl4ZmVyX2NvdW50ID0gbWluX3Qoc2l6ZV90LCBsZW4gLSBv ZmZzZXQsCi0JCQkJICAgU1RNMzJfRE1BX01BWF9EQVRBX0lURU1TKTsKKwkJCQkgICBTVE0zMl9E TUFfQUxJR05FRF9NQVhfREFUQV9JVEVNUyk7CiAKIAkJLyogQ29tcHV0ZSBiZXN0IGJ1cnN0IHNp emUgKi8KIAkJbWF4X3dpZHRoID0gRE1BX1NMQVZFX0JVU1dJRFRIXzFfQllURTsK