From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 16C12C43603 for ; Sat, 7 Dec 2019 21:04:18 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id A00042082E for ; Sat, 7 Dec 2019 21:04:17 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A00042082E Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=chris-wilson.co.uk Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 3EAA96E245; Sat, 7 Dec 2019 21:04:17 +0000 (UTC) Received: from fireflyinternet.com (mail.fireflyinternet.com [109.228.58.192]) by gabe.freedesktop.org (Postfix) with ESMTPS id DF0CE6E245; Sat, 7 Dec 2019 21:04:15 +0000 (UTC) X-Default-Received-SPF: pass (skip=forwardok (res=PASS)) x-ip-name=78.156.65.138; Received: from haswell.alporthouse.com (unverified [78.156.65.138]) by fireflyinternet.com (Firefly Internet (M1)) with ESMTP id 19498252-1500050 for multiple; Sat, 07 Dec 2019 21:04:08 +0000 From: Chris Wilson To: intel-gfx@lists.freedesktop.org Date: Sat, 7 Dec 2019 21:04:07 +0000 Message-Id: <20191207210407.2721819-1-chris@chris-wilson.co.uk> X-Mailer: git-send-email 2.24.0 MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH i-g-t] i915/gem_ctx_freq: Protect against absent sysfs nodes X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: igt-dev@lists.freedesktop.org Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Tm90IGFsbCBtYWNoaW5lcyBleHBvc2UgdGhlIFJQUyBjb250cm9sIG5vZGVzIChlLmcuIElyb25s YWtlIGFuZAplYXJsaWVyKSBhcyB0aGV5IGRvbid0IHN1cHBvcnQgUlBTLgoKU2lnbmVkLW9mZi1i eTogQ2hyaXMgV2lsc29uIDxjaHJpc0BjaHJpcy13aWxzb24uY28udWs+Ci0tLQogdGVzdHMvaTkx NS9nZW1fY3R4X2ZyZXEuYyB8IDI3ICsrKysrKysrKysrKystLS0tLS0tLS0tLS0tLQogMSBmaWxl IGNoYW5nZWQsIDEzIGluc2VydGlvbnMoKyksIDE0IGRlbGV0aW9ucygtKQoKZGlmZiAtLWdpdCBh L3Rlc3RzL2k5MTUvZ2VtX2N0eF9mcmVxLmMgYi90ZXN0cy9pOTE1L2dlbV9jdHhfZnJlcS5jCmlu ZGV4IGJjMDkzNjU0YS4uODlmM2QxMWVmIDEwMDY0NAotLS0gYS90ZXN0cy9pOTE1L2dlbV9jdHhf ZnJlcS5jCisrKyBiL3Rlc3RzL2k5MTUvZ2VtX2N0eF9mcmVxLmMKQEAgLTEwOSwxMCArMTA5LDEw IEBAIHN0YXRpYyB2b2lkIHNldF9zeXNmc19mcmVxKHVpbnQzMl90IG1pbiwgdWludDMyX3QgbWF4 KQogCWlndF9zeXNmc19wcmludGYoc3lzZnMsICJndF9tYXhfZnJlcV9taHoiLCAiJXUiLCBtYXgp OwogfQogCi1zdGF0aWMgdm9pZCBnZXRfc3lzZnNfZnJlcSh1aW50MzJfdCAqbWluLCB1aW50MzJf dCAqbWF4KQorc3RhdGljIGJvb2wgZ2V0X3N5c2ZzX2ZyZXEodWludDMyX3QgKm1pbiwgdWludDMy X3QgKm1heCkKIHsKLQlpZ3Rfc3lzZnNfc2NhbmYoc3lzZnMsICJndF9taW5fZnJlcV9taHoiLCAi JXUiLCBtaW4pOwotCWlndF9zeXNmc19zY2FuZihzeXNmcywgImd0X21heF9mcmVxX21oeiIsICIl dSIsIG1heCk7CisJcmV0dXJuIChpZ3Rfc3lzZnNfc2NhbmYoc3lzZnMsICJndF9taW5fZnJlcV9t aHoiLCAiJXUiLCBtaW4pID09IDEgJiYKKwkJaWd0X3N5c2ZzX3NjYW5mKHN5c2ZzLCAiZ3RfbWF4 X2ZyZXFfbWh6IiwgIiV1IiwgbWF4KSA9PSAxKTsKIH0KIAogc3RhdGljIHZvaWQgc3lzZnNfcmFu Z2UoaW50IGk5MTUpCkBAIC0xMzEsNyArMTMxLDcgQEAgc3RhdGljIHZvaWQgc3lzZnNfcmFuZ2Uo aW50IGk5MTUpCiAJICogY29uc3RyaWFpbmVkIHN5c2ZzIHJhbmdlLgogCSAqLwogCi0JZ2V0X3N5 c2ZzX2ZyZXEoJnN5c19taW4sICZzeXNfbWF4KTsKKwlpZ3RfcmVxdWlyZShnZXRfc3lzZnNfZnJl cSgmc3lzX21pbiwgJnN5c19tYXgpKTsKIAlpZ3RfaW5mbygiU3lzdGVtIG1pbiBmcmVxOiAlZE1I ejsgbWF4IGZyZXE6ICVkTUh6XG4iLCBzeXNfbWluLCBzeXNfbWF4KTsKIAogCXRyaWFuZ2xlX2Zp bGwoZnJlcXVlbmNpZXMsIE5fU1RFUFMsIHN5c19taW4sIHN5c19tYXgpOwpAQCAtMTgyLDE4ICsx ODIsMTcgQEAgc3RhdGljIHZvaWQgcmVzdG9yZV9zeXNmc19mcmVxKGludCBzaWcpCiAJfQogfQog Ci1zdGF0aWMgdm9pZCBkaXNhYmxlX2Jvb3N0KGludCBpOTE1KQorc3RhdGljIHZvaWQgZGlzYWJs ZV9ib29zdCh2b2lkKQogewotCWNoYXIgKnZhbHVlOworCWNoYXIgYnVmWzI1Nl07CiAKLQl2YWx1 ZSA9IGlndF9zeXNmc19nZXQoaTkxNSwgImd0X1JQbl9mcmVxX21oeiIpOwotCWlndF9zeXNmc19z ZXQoaTkxNSwgImd0X21pbl9mcmVxX21oeiIsIHZhbHVlKTsKLQlpZ3Rfc3lzZnNfc2V0KGk5MTUs ICJndF9ib29zdF9mcmVxX21oeiIsIHZhbHVlKTsKLQlmcmVlKHZhbHVlKTsKKwlpZiAoaWd0X3N5 c2ZzX3JlYWQoc3lzZnMsICJndF9SUG5fZnJlcV9taHoiLCBidWYsIHNpemVvZihidWYpKSA+IDAp IHsKKwkJaWd0X3N5c2ZzX3NldChzeXNmcywgImd0X21pbl9mcmVxX21oeiIsIGJ1Zik7CisJCWln dF9zeXNmc19zZXQoc3lzZnMsICJndF9ib29zdF9mcmVxX21oeiIsIGJ1Zik7CisJfQogCi0JdmFs dWUgPSBpZ3Rfc3lzZnNfZ2V0KGk5MTUsICJndF9SUDBfZnJlcV9taHoiKTsKLQlpZ3Rfc3lzZnNf c2V0KGk5MTUsICJndF9tYXhfZnJlcV9taHoiLCB2YWx1ZSk7Ci0JZnJlZSh2YWx1ZSk7CisJaWYg KGlndF9zeXNmc19yZWFkKHN5c2ZzLCAiZ3RfUlAwX2ZyZXFfbWh6IiwgYnVmLCBzaXplb2YoYnVm KSkgPiAwKQorCQlpZ3Rfc3lzZnNfc2V0KHN5c2ZzLCAiZ3RfbWF4X2ZyZXFfbWh6IiwgYnVmKTsK IH0KIAogaWd0X21haW4KQEAgLTIwOCw3ICsyMDcsNyBAQCBpZ3RfbWFpbgogCQlpZ3RfYXNzZXJ0 KHN5c2ZzICE9IC0xKTsKIAkJaWd0X2luc3RhbGxfZXhpdF9oYW5kbGVyKHJlc3RvcmVfc3lzZnNf ZnJlcSk7CiAKLQkJZGlzYWJsZV9ib29zdChzeXNmcyk7CisJCWRpc2FibGVfYm9vc3QoKTsKIAl9 CiAKIAlpZ3Rfc3VidGVzdF9mKCJzeXNmcyIpCi0tIAoyLjI0LjAKCl9fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCkludGVsLWdmeCBtYWlsaW5nIGxpc3QKSW50 ZWwtZ2Z4QGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwczovL2xpc3RzLmZyZWVkZXNrdG9wLm9y Zy9tYWlsbWFuL2xpc3RpbmZvL2ludGVsLWdmeA== From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Chris Wilson Date: Sat, 7 Dec 2019 21:04:07 +0000 Message-Id: <20191207210407.2721819-1-chris@chris-wilson.co.uk> MIME-Version: 1.0 Subject: [igt-dev] [PATCH i-g-t] i915/gem_ctx_freq: Protect against absent sysfs nodes List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: igt-dev-bounces@lists.freedesktop.org Sender: "igt-dev" To: intel-gfx@lists.freedesktop.org Cc: igt-dev@lists.freedesktop.org List-ID: Tm90IGFsbCBtYWNoaW5lcyBleHBvc2UgdGhlIFJQUyBjb250cm9sIG5vZGVzIChlLmcuIElyb25s YWtlIGFuZAplYXJsaWVyKSBhcyB0aGV5IGRvbid0IHN1cHBvcnQgUlBTLgoKU2lnbmVkLW9mZi1i eTogQ2hyaXMgV2lsc29uIDxjaHJpc0BjaHJpcy13aWxzb24uY28udWs+Ci0tLQogdGVzdHMvaTkx NS9nZW1fY3R4X2ZyZXEuYyB8IDI3ICsrKysrKysrKysrKystLS0tLS0tLS0tLS0tLQogMSBmaWxl IGNoYW5nZWQsIDEzIGluc2VydGlvbnMoKyksIDE0IGRlbGV0aW9ucygtKQoKZGlmZiAtLWdpdCBh L3Rlc3RzL2k5MTUvZ2VtX2N0eF9mcmVxLmMgYi90ZXN0cy9pOTE1L2dlbV9jdHhfZnJlcS5jCmlu ZGV4IGJjMDkzNjU0YS4uODlmM2QxMWVmIDEwMDY0NAotLS0gYS90ZXN0cy9pOTE1L2dlbV9jdHhf ZnJlcS5jCisrKyBiL3Rlc3RzL2k5MTUvZ2VtX2N0eF9mcmVxLmMKQEAgLTEwOSwxMCArMTA5LDEw IEBAIHN0YXRpYyB2b2lkIHNldF9zeXNmc19mcmVxKHVpbnQzMl90IG1pbiwgdWludDMyX3QgbWF4 KQogCWlndF9zeXNmc19wcmludGYoc3lzZnMsICJndF9tYXhfZnJlcV9taHoiLCAiJXUiLCBtYXgp OwogfQogCi1zdGF0aWMgdm9pZCBnZXRfc3lzZnNfZnJlcSh1aW50MzJfdCAqbWluLCB1aW50MzJf dCAqbWF4KQorc3RhdGljIGJvb2wgZ2V0X3N5c2ZzX2ZyZXEodWludDMyX3QgKm1pbiwgdWludDMy X3QgKm1heCkKIHsKLQlpZ3Rfc3lzZnNfc2NhbmYoc3lzZnMsICJndF9taW5fZnJlcV9taHoiLCAi JXUiLCBtaW4pOwotCWlndF9zeXNmc19zY2FuZihzeXNmcywgImd0X21heF9mcmVxX21oeiIsICIl dSIsIG1heCk7CisJcmV0dXJuIChpZ3Rfc3lzZnNfc2NhbmYoc3lzZnMsICJndF9taW5fZnJlcV9t aHoiLCAiJXUiLCBtaW4pID09IDEgJiYKKwkJaWd0X3N5c2ZzX3NjYW5mKHN5c2ZzLCAiZ3RfbWF4 X2ZyZXFfbWh6IiwgIiV1IiwgbWF4KSA9PSAxKTsKIH0KIAogc3RhdGljIHZvaWQgc3lzZnNfcmFu Z2UoaW50IGk5MTUpCkBAIC0xMzEsNyArMTMxLDcgQEAgc3RhdGljIHZvaWQgc3lzZnNfcmFuZ2Uo aW50IGk5MTUpCiAJICogY29uc3RyaWFpbmVkIHN5c2ZzIHJhbmdlLgogCSAqLwogCi0JZ2V0X3N5 c2ZzX2ZyZXEoJnN5c19taW4sICZzeXNfbWF4KTsKKwlpZ3RfcmVxdWlyZShnZXRfc3lzZnNfZnJl cSgmc3lzX21pbiwgJnN5c19tYXgpKTsKIAlpZ3RfaW5mbygiU3lzdGVtIG1pbiBmcmVxOiAlZE1I ejsgbWF4IGZyZXE6ICVkTUh6XG4iLCBzeXNfbWluLCBzeXNfbWF4KTsKIAogCXRyaWFuZ2xlX2Zp bGwoZnJlcXVlbmNpZXMsIE5fU1RFUFMsIHN5c19taW4sIHN5c19tYXgpOwpAQCAtMTgyLDE4ICsx ODIsMTcgQEAgc3RhdGljIHZvaWQgcmVzdG9yZV9zeXNmc19mcmVxKGludCBzaWcpCiAJfQogfQog Ci1zdGF0aWMgdm9pZCBkaXNhYmxlX2Jvb3N0KGludCBpOTE1KQorc3RhdGljIHZvaWQgZGlzYWJs ZV9ib29zdCh2b2lkKQogewotCWNoYXIgKnZhbHVlOworCWNoYXIgYnVmWzI1Nl07CiAKLQl2YWx1 ZSA9IGlndF9zeXNmc19nZXQoaTkxNSwgImd0X1JQbl9mcmVxX21oeiIpOwotCWlndF9zeXNmc19z ZXQoaTkxNSwgImd0X21pbl9mcmVxX21oeiIsIHZhbHVlKTsKLQlpZ3Rfc3lzZnNfc2V0KGk5MTUs ICJndF9ib29zdF9mcmVxX21oeiIsIHZhbHVlKTsKLQlmcmVlKHZhbHVlKTsKKwlpZiAoaWd0X3N5 c2ZzX3JlYWQoc3lzZnMsICJndF9SUG5fZnJlcV9taHoiLCBidWYsIHNpemVvZihidWYpKSA+IDAp IHsKKwkJaWd0X3N5c2ZzX3NldChzeXNmcywgImd0X21pbl9mcmVxX21oeiIsIGJ1Zik7CisJCWln dF9zeXNmc19zZXQoc3lzZnMsICJndF9ib29zdF9mcmVxX21oeiIsIGJ1Zik7CisJfQogCi0JdmFs dWUgPSBpZ3Rfc3lzZnNfZ2V0KGk5MTUsICJndF9SUDBfZnJlcV9taHoiKTsKLQlpZ3Rfc3lzZnNf c2V0KGk5MTUsICJndF9tYXhfZnJlcV9taHoiLCB2YWx1ZSk7Ci0JZnJlZSh2YWx1ZSk7CisJaWYg KGlndF9zeXNmc19yZWFkKHN5c2ZzLCAiZ3RfUlAwX2ZyZXFfbWh6IiwgYnVmLCBzaXplb2YoYnVm KSkgPiAwKQorCQlpZ3Rfc3lzZnNfc2V0KHN5c2ZzLCAiZ3RfbWF4X2ZyZXFfbWh6IiwgYnVmKTsK IH0KIAogaWd0X21haW4KQEAgLTIwOCw3ICsyMDcsNyBAQCBpZ3RfbWFpbgogCQlpZ3RfYXNzZXJ0 KHN5c2ZzICE9IC0xKTsKIAkJaWd0X2luc3RhbGxfZXhpdF9oYW5kbGVyKHJlc3RvcmVfc3lzZnNf ZnJlcSk7CiAKLQkJZGlzYWJsZV9ib29zdChzeXNmcyk7CisJCWRpc2FibGVfYm9vc3QoKTsKIAl9 CiAKIAlpZ3Rfc3VidGVzdF9mKCJzeXNmcyIpCi0tIAoyLjI0LjAKCl9fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmlndC1kZXYgbWFpbGluZyBsaXN0CmlndC1k ZXZAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21h aWxtYW4vbGlzdGluZm8vaWd0LWRldg==