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Thu, 07 Jan 2021 13:15:30 -0800 (PST) From: John Stultz To: lkml Subject: [PATCH 2/3] dma-buf: heaps: Add a WARN_ON should the vmap_cnt go negative Date: Thu, 7 Jan 2021 21:15:24 +0000 Message-Id: <20210107211525.75951-2-john.stultz@linaro.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210107211525.75951-1-john.stultz@linaro.org> References: <20210107211525.75951-1-john.stultz@linaro.org> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Sandeep Patil , dri-devel@lists.freedesktop.org, Ezequiel Garcia , Robin Murphy , James Jones , Liam Mark , Laura Abbott , Chris Goldsworthy , Hridya Valsaraju , =?UTF-8?q?=C3=98rjan=20Eide?= , linux-media@vger.kernel.org, Suren Baghdasaryan , Daniel Mentz Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" V2Ugc2hvdWxkbid0IHZ1bm1hcCBtb3JlIHRoZW4gd2Ugdm1hcCwgYnV0IGlmIHdlIGRvLCBtYWtl CnN1cmUgd2UgY29tcGxhaW4gbG91ZGx5LgoKQ2M6IFN1bWl0IFNlbXdhbCA8c3VtaXQuc2Vtd2Fs QGxpbmFyby5vcmc+CkNjOiBMaWFtIE1hcmsgPGxtYXJrQGNvZGVhdXJvcmEub3JnPgpDYzogTGF1 cmEgQWJib3R0IDxsYWJib3R0QGtlcm5lbC5vcmc+CkNjOiBCcmlhbiBTdGFya2V5IDxCcmlhbi5T dGFya2V5QGFybS5jb20+CkNjOiBIcmlkeWEgVmFsc2FyYWp1IDxocmlkeWFAZ29vZ2xlLmNvbT4K Q2M6IFN1cmVuIEJhZ2hkYXNhcnlhbiA8c3VyZW5iQGdvb2dsZS5jb20+CkNjOiBTYW5kZWVwIFBh dGlsIDxzc3BhdGlsQGdvb2dsZS5jb20+CkNjOiBEYW5pZWwgTWVudHogPGRhbmllbG1lbnR6QGdv b2dsZS5jb20+CkNjOiBDaHJpcyBHb2xkc3dvcnRoeSA8Y2dvbGRzd29AY29kZWF1cm9yYS5vcmc+ CkNjOiDDmHJqYW4gRWlkZSA8b3JqYW4uZWlkZUBhcm0uY29tPgpDYzogUm9iaW4gTXVycGh5IDxy b2Jpbi5tdXJwaHlAYXJtLmNvbT4KQ2M6IEV6ZXF1aWVsIEdhcmNpYSA8ZXplcXVpZWxAY29sbGFi b3JhLmNvbT4KQ2M6IFNpbW9uIFNlciA8Y29udGFjdEBlbWVyc2lvbi5mcj4KQ2M6IEphbWVzIEpv bmVzIDxqYWpvbmVzQG52aWRpYS5jb20+CkNjOiBsaW51eC1tZWRpYUB2Z2VyLmtlcm5lbC5vcmcK Q2M6IGRyaS1kZXZlbEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKU3VnZ2VzdGVkLWJ5OiBTdXJlbiBC YWdoZGFzYXJ5YW4gPHN1cmVuYkBnb29nbGUuY29tPgpTaWduZWQtb2ZmLWJ5OiBKb2huIFN0dWx0 eiA8am9obi5zdHVsdHpAbGluYXJvLm9yZz4KLS0tCiBkcml2ZXJzL2RtYS1idWYvaGVhcHMvY21h X2hlYXAuYyAgICB8IDEgKwogZHJpdmVycy9kbWEtYnVmL2hlYXBzL3N5c3RlbV9oZWFwLmMgfCAx ICsKIDIgZmlsZXMgY2hhbmdlZCwgMiBpbnNlcnRpb25zKCspCgpkaWZmIC0tZ2l0IGEvZHJpdmVy cy9kbWEtYnVmL2hlYXBzL2NtYV9oZWFwLmMgYi9kcml2ZXJzL2RtYS1idWYvaGVhcHMvY21hX2hl YXAuYwppbmRleCAzNjRmYzJmM2U0OTkuLjBjNzZjYmMzZmIxMSAxMDA2NDQKLS0tIGEvZHJpdmVy cy9kbWEtYnVmL2hlYXBzL2NtYV9oZWFwLmMKKysrIGIvZHJpdmVycy9kbWEtYnVmL2hlYXBzL2Nt YV9oZWFwLmMKQEAgLTIzMiw2ICsyMzIsNyBAQCBzdGF0aWMgdm9pZCBjbWFfaGVhcF92dW5tYXAo c3RydWN0IGRtYV9idWYgKmRtYWJ1Ziwgc3RydWN0IGRtYV9idWZfbWFwICptYXApCiAJc3RydWN0 IGNtYV9oZWFwX2J1ZmZlciAqYnVmZmVyID0gZG1hYnVmLT5wcml2OwogCiAJbXV0ZXhfbG9jaygm YnVmZmVyLT5sb2NrKTsKKwlXQVJOX09OKGJ1ZmZlci0+dm1hcF9jbnQgPT0gMCk7CiAJaWYgKCEt LWJ1ZmZlci0+dm1hcF9jbnQpIHsKIAkJdnVubWFwKGJ1ZmZlci0+dmFkZHIpOwogCQlidWZmZXIt PnZhZGRyID0gTlVMTDsKZGlmZiAtLWdpdCBhL2RyaXZlcnMvZG1hLWJ1Zi9oZWFwcy9zeXN0ZW1f aGVhcC5jIGIvZHJpdmVycy9kbWEtYnVmL2hlYXBzL3N5c3RlbV9oZWFwLmMKaW5kZXggNDA1MzUx YWFkMmE4Li4yMzIxYzkxODkxZjYgMTAwNjQ0Ci0tLSBhL2RyaXZlcnMvZG1hLWJ1Zi9oZWFwcy9z eXN0ZW1faGVhcC5jCisrKyBiL2RyaXZlcnMvZG1hLWJ1Zi9oZWFwcy9zeXN0ZW1faGVhcC5jCkBA IC0yNzMsNiArMjczLDcgQEAgc3RhdGljIHZvaWQgc3lzdGVtX2hlYXBfdnVubWFwKHN0cnVjdCBk bWFfYnVmICpkbWFidWYsIHN0cnVjdCBkbWFfYnVmX21hcCAqbWFwKQogCXN0cnVjdCBzeXN0ZW1f aGVhcF9idWZmZXIgKmJ1ZmZlciA9IGRtYWJ1Zi0+cHJpdjsKIAogCW11dGV4X2xvY2soJmJ1ZmZl ci0+bG9jayk7CisJV0FSTl9PTihidWZmZXItPnZtYXBfY250ID09IDApOwogCWlmICghLS1idWZm ZXItPnZtYXBfY250KSB7CiAJCXZ1bm1hcChidWZmZXItPnZhZGRyKTsKIAkJYnVmZmVyLT52YWRk ciA9IE5VTEw7Ci0tIAoyLjE3LjEKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fCmRyaS1kZXZlbCBtYWlsaW5nIGxpc3QKZHJpLWRldmVsQGxpc3RzLmZyZWVk ZXNrdG9wLm9yZwpodHRwczovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZv L2RyaS1kZXZlbAo=