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: WARN_ON(irqs_disabled()) in dma_free_attrs? From: Fredrik Noring Message-Id: <20180311180124.GA27731@localhost.localdomain> Date: Sun, 11 Mar 2018 19:01:25 +0100 To: Christoph Hellwig Cc: Alan Stern , Robin Murphy , Marek Szyprowski , iommu@lists.linux-foundation.org, USB list , =?utf-8?Q?J=C3=BCrgen?= Urban List-ID: SGkgQ2hyaXN0b3BoLAoKPiBUaGUgcG9pbnQgaXMgdGhhdCB5b3Ugc2hvdWxkIGFsd2F5cyB1c2Ug YSBwb29sLCBwZXJpb2QuCj4gZG1hX2FsbG9jKi9kbWFfZnJlZSogYXJlIGZ1bmRhbWVudGFsbHkg ZXhwZW5zaXZlIG9wZXJhdGlvbnMgb24gbXkKPiBhcmNoaXRlY3R1cmVzLCBzbyBpZiB5b3UgY2Fs bCB0aGVtIGZyb20gYSBmYXN0IHBhdGggeW91IGFyZSBkb2luZwo+IHNvbWV0aGluZyB3cm9uZy4K ClRoZSBhdXRob3IncyBjb21tZW50IGluIGNvbW1pdCBiMzQ3NjY3NTMyMGUgInVzYjogZG1hIGJv dW5jZSBidWZmZXIgc3VwcG9ydCIKc2VlbXMgdG8gc3VnZ2VzdCB0aGF0IHRoZSBncmVhdGVzdCBj b25jZXJuIGlzIHNwYWNlIGVmZmljaWVuY3kgYXMgb3Bwb3NlZCB0bwpzcGVlZC4gSSB0cmllZCB0 byBldmFsdWF0ZSBzdHJpY3QgcG9vbCBhbGxvY2F0aW9ucywgc2ltaWxhciB0byB0aGUgcGF0Y2gK YmVsb3csIGJ1dCB0aGF0IGRpZG4ndCB0dXJuIG91dCBhcyBJIGV4cGVjdGVkLgoKSSBjaG9zZSBh IDY0IEtpQiBwb29sIG1heGltdW0gc2luY2UgaXQgaGFzIGJlZW4gdGhlIGxhcmdlc3QgcmVxdWVz dGVkIHNpemUgSQpoYXZlIG9ic2VydmVkIGluIFVTQiB0cmFjZXMgKHdoaWNoIG1heSBub3QgaG9s ZCBpbiBnZW5lcmFsLCBvZiBjb3Vyc2UpLiBUaGlzCmNoYW5nZSBjYXVzZWQgdGhlIFVTQiBtYXNz IHN0b3JhZ2UgZHJpdmVyIHRvIGdldCBzdHVjayBpbiBzb21lIGtpbmQgb2YgbWVtb3J5CmRlYWRs b2NrLCB3aXRoIGVuZGxlc3MgYnVzeS1sb29waW5nIG9uIDY0IEtpQiBhbGxvY2F0aW9uIGZhaWx1 cmVzLgoKSSBhbHNvIHRyaWVkIGEgcHJvZ3Jlc3Npb24gb2YgcG9vbCBzaXplcyBpbmNsdWRpbmcg bm9ucG93ZXJzIG9mIHR3bywgZm9yCmV4YW1wbGUgMTIyODgsIHRvIG1ha2UgYmV0dGVyIHVzZSBv ZiB0aGUgMjU2IEtpQiBtZW1vcnkgY2FwYWNpdHkuIEhvd2V2ZXIsCnRoZSBmb2xsb3dpbmcgcGFy dCBvZiBkbWFfcG9vbF9jcmVhdGUgaW4gbGludXgvbW0vZG1hcG9vbC5jIGlzIHNvbWV3aGF0CnB1 enpsaW5nOgoKCWlmICghYm91bmRhcnkpCgkJYm91bmRhcnkgPSBhbGxvY2F0aW9uOwoJZWxzZSBp ZiAoKGJvdW5kYXJ5IDwgc2l6ZSkgfHwgKGJvdW5kYXJ5ICYgKGJvdW5kYXJ5IC0gMSkpKQoJCXJl dHVybiBOVUxMOwoKSXMgdGhlIGJvdW5kYXJ5IHZhcmlhYmxlIHJlcXVpcmVkIHRvIGJlIGEgcG93 ZXIgb2YgdHdvIG9ubHkgd2hlbiBpdCBpcwpleHBsaWNpdGx5IGdpdmVuIGFzIG5vbnplcm8/CgpG cmVkcmlrCi0tLQpUbyB1bnN1YnNjcmliZSBmcm9tIHRoaXMgbGlzdDogc2VuZCB0aGUgbGluZSAi dW5zdWJzY3JpYmUgbGludXgtdXNiIiBpbgp0aGUgYm9keSBvZiBhIG1lc3NhZ2UgdG8gbWFqb3Jk b21vQHZnZXIua2VybmVsLm9yZwpNb3JlIG1ham9yZG9tbyBpbmZvIGF0ICBodHRwOi8vdmdlci5r ZXJuZWwub3JnL21ham9yZG9tby1pbmZvLmh0bWwKCmRpZmYgLS1naXQgYS9kcml2ZXJzL3VzYi9j b3JlL2J1ZmZlci5jIGIvZHJpdmVycy91c2IvY29yZS9idWZmZXIuYwppbmRleCA3N2VlZjhhY2Zm OTQuLjhjYzhmYmM5MWM3NiAxMDA2NDQKLS0tIGEvZHJpdmVycy91c2IvY29yZS9idWZmZXIuYwor KysgYi9kcml2ZXJzL3VzYi9jb3JlL2J1ZmZlci5jCkBAIC0yNiw3ICsyNiw3IEBACiAKIC8qIEZJ WE1FIHR1bmUgdGhlc2UgYmFzZWQgb24gcG9vbCBzdGF0aXN0aWNzIC4uLiAqLwogc3RhdGljIHNp emVfdCBwb29sX21heFtIQ0RfQlVGRkVSX1BPT0xTXSA9IHsKLQkzMiwgMTI4LCA1MTIsIDIwNDgs CisJMzIsIDEyOCwgMjU2LCA1MTIsIDEwMjQsIDIwNDgsIDQwOTYsIDgxOTIsIDE2Mzg0LCAzMjc2 OCwgNjU1MzYKIH07CiAKIHZvaWQgX19pbml0IHVzYl9pbml0X3Bvb2xfbWF4KHZvaWQpCkBAIC03 Niw3ICs3Niw3IEBAIGludCBoY2RfYnVmZmVyX2NyZWF0ZShzdHJ1Y3QgdXNiX2hjZCAqaGNkKQog CQkJY29udGludWU7CiAJCXNucHJpbnRmKG5hbWUsIHNpemVvZihuYW1lKSwgImJ1ZmZlci0lZCIs IHNpemUpOwogCQloY2QtPnBvb2xbaV0gPSBkbWFfcG9vbF9jcmVhdGUobmFtZSwgaGNkLT5zZWxm LnN5c2RldiwKLQkJCQlzaXplLCBzaXplLCAwKTsKKwkJCQlzaXplLCBtaW5fdChzaXplX3QsIDQw OTYsIHNpemUpLCAwKTsKIAkJaWYgKCFoY2QtPnBvb2xbaV0pIHsKIAkJCWhjZF9idWZmZXJfZGVz dHJveShoY2QpOwogCQkJcmV0dXJuIC1FTk9NRU07CkBAIC0xNDAsNyArMTQwLDcgQEAgdm9pZCAq aGNkX2J1ZmZlcl9hbGxvYygKIAkJaWYgKHNpemUgPD0gcG9vbF9tYXhbaV0pCiAJCQlyZXR1cm4g ZG1hX3Bvb2xfYWxsb2MoaGNkLT5wb29sW2ldLCBtZW1fZmxhZ3MsIGRtYSk7CiAJfQotCXJldHVy biBkbWFfYWxsb2NfY29oZXJlbnQoaGNkLT5zZWxmLnN5c2Rldiwgc2l6ZSwgZG1hLCBtZW1fZmxh Z3MpOworCXJldHVybiBOVUxMOwogfQogCiB2b2lkIGhjZF9idWZmZXJfZnJlZSgKQEAgLTE2OSw1 ICsxNjksNSBAQCB2b2lkIGhjZF9idWZmZXJfZnJlZSgKIAkJCXJldHVybjsKIAkJfQogCX0KLQlk bWFfZnJlZV9jb2hlcmVudChoY2QtPnNlbGYuc3lzZGV2LCBzaXplLCBhZGRyLCBkbWEpOworCUJV RygpOwkJLyogVGhlIGJ1ZmZlciBjb3VsZCBub3QgaGF2ZSBiZWVuIGFsbG9jYXRlZC4gKi8KIH0K ZGlmZiAtLWdpdCBhL2luY2x1ZGUvbGludXgvdXNiL2hjZC5oIGIvaW5jbHVkZS9saW51eC91c2Iv aGNkLmgKaW5kZXggMTc2OTAwNTI4ODIyLi4yMDc1ZjFlMjJlMzIgMTAwNjQ0Ci0tLSBhL2luY2x1 ZGUvbGludXgvdXNiL2hjZC5oCisrKyBiL2luY2x1ZGUvbGludXgvdXNiL2hjZC5oCkBAIC0xODks NyArMTg5LDcgQEAgc3RydWN0IHVzYl9oY2QgewogCXN0cnVjdCB1c2JfaGNkCQkqcHJpbWFyeV9o Y2Q7CiAKIAotI2RlZmluZSBIQ0RfQlVGRkVSX1BPT0xTCTQKKyNkZWZpbmUgSENEX0JVRkZFUl9Q T09MUwkxMQogCXN0cnVjdCBkbWFfcG9vbAkJKnBvb2xbSENEX0JVRkZFUl9QT09MU107CiAKIAlp bnQJCQlzdGF0ZTsK