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: [1/2] x86/MCE/AMD: Check for NULL banks in THR interrupt handler From: Yazen Ghannam Message-Id: <20180809140834.59264-1-Yazen.Ghannam@amd.com> Date: Thu, 9 Aug 2018 09:08:33 -0500 To: linux-edac@vger.kernel.org Cc: Yazen Ghannam , linux-kernel@vger.kernel.org, bp@suse.de, tony.luck@intel.com, x86@kernel.org List-ID: RnJvbTogWWF6ZW4gR2hhbm5hbSA8eWF6ZW4uZ2hhbm5hbUBhbWQuY29tPgoKSWYgdGhyZXNob2xk X2luaXRfZGV2aWNlKCkgZmFpbHMgdGhlbiBwZXJfY3B1KHRocmVzaG9sZF9iYW5rcykgd2lsbCBi ZQpkZWFsbG9jYXRlZC4gVGhlIHRocmVzaG9sZGluZyBpbnRlcnJ1cHQgaGFuZGxlciB3aWxsIHN0 aWxsIGJlIGFjdGl2ZSwgc28KaXQncyBwb3NzaWJsZSB0byBnZXQgYSBOVUxMIHBvaW50ZXIgZGVy ZWZlcmVuY2UgaWYgYSBUSFIgaW50ZXJydXB0CmhhcHBlbnMgYW5kIGFueSBvZiB0aGUgc3RydWN0 dXJlcyBhcmUgTlVMTC4KCkV4aXQgdGhlIGhhbmRsZXIgaWYgcGVyX2NwdSh0aHJlc2hvbGRfYmFu a3MpIGlzIE5VTEwgYW5kIHNraXAgTlVMTApiYW5rcy4gTUNBIGVycm9yIGluZm9ybWF0aW9uIHdp bGwgc3RpbGwgYmUgaW4gdGhlIHJlZ2lzdGVycy4gVGhlCmluZm9ybWF0aW9uIHdpbGwgYmUgbG9n Z2VkIGR1cmluZyBwb2xsaW5nIG9yIGluIGFub3RoZXIgTUNBIGV4Y2VwdGlvbiBvcgppbnRlcnJ1 cHQgaGFuZGxlci4KCkZpeGVzOiAxN2VmNGFmMGVjMGYgKCJ4ODYvbWNlL0FNRDogVXNlIHNhdmVk IHRocmVzaG9sZCBibG9jayBpbmZvIGluIGludGVycnVwdCBoYW5kbGVyIikKQ2M6IDxzdGFibGVA dmdlci5rZXJuZWwub3JnPiAjIDQuMTMueApTaWduZWQtb2ZmLWJ5OiBZYXplbiBHaGFubmFtIDx5 YXplbi5naGFubmFtQGFtZC5jb20+Ci0tLQogYXJjaC94ODYva2VybmVsL2NwdS9tY2hlY2svbWNl X2FtZC5jIHwgMTAgKysrKysrKysrLQogMSBmaWxlIGNoYW5nZWQsIDkgaW5zZXJ0aW9ucygrKSwg MSBkZWxldGlvbigtKQoKZGlmZiAtLWdpdCBhL2FyY2gveDg2L2tlcm5lbC9jcHUvbWNoZWNrL21j ZV9hbWQuYyBiL2FyY2gveDg2L2tlcm5lbC9jcHUvbWNoZWNrL21jZV9hbWQuYwppbmRleCBkZDMz YzM1NzU0OGYuLjJkYmYzNDI1MGJiZiAxMDA2NDQKLS0tIGEvYXJjaC94ODYva2VybmVsL2NwdS9t Y2hlY2svbWNlX2FtZC5jCisrKyBiL2FyY2gveDg2L2tlcm5lbC9jcHUvbWNoZWNrL21jZV9hbWQu YwpAQCAtOTM0LDEzICs5MzQsMjEgQEAgc3RhdGljIHZvaWQgbG9nX2FuZF9yZXNldF9ibG9jayhz dHJ1Y3QgdGhyZXNob2xkX2Jsb2NrICpibG9jaykKIHN0YXRpYyB2b2lkIGFtZF90aHJlc2hvbGRf aW50ZXJydXB0KHZvaWQpCiB7CiAJc3RydWN0IHRocmVzaG9sZF9ibG9jayAqZmlyc3RfYmxvY2sg PSBOVUxMLCAqYmxvY2sgPSBOVUxMLCAqdG1wID0gTlVMTDsKKwlzdHJ1Y3QgdGhyZXNob2xkX2Jh bmsgKnRoX2JhbmsgPSBOVUxMOwogCXVuc2lnbmVkIGludCBiYW5rLCBjcHUgPSBzbXBfcHJvY2Vz c29yX2lkKCk7CiAKKwlpZiAoIXBlcl9jcHUodGhyZXNob2xkX2JhbmtzLCBjcHUpKQorCQlyZXR1 cm47CisKIAlmb3IgKGJhbmsgPSAwOyBiYW5rIDwgbWNhX2NmZy5iYW5rczsgKytiYW5rKSB7CiAJ CWlmICghKHBlcl9jcHUoYmFua19tYXAsIGNwdSkgJiAoMSA8PCBiYW5rKSkpCiAJCQljb250aW51 ZTsKIAotCQlmaXJzdF9ibG9jayA9IHBlcl9jcHUodGhyZXNob2xkX2JhbmtzLCBjcHUpW2Jhbmtd LT5ibG9ja3M7CisJCXRoX2JhbmsgPSBwZXJfY3B1KHRocmVzaG9sZF9iYW5rcywgY3B1KVtiYW5r XTsKKwkJaWYgKCF0aF9iYW5rKQorCQkJY29udGludWU7CisKKwkJZmlyc3RfYmxvY2sgPSB0aF9i YW5rLT5ibG9ja3M7CiAJCWlmICghZmlyc3RfYmxvY2spCiAJCQljb250aW51ZTsKIAo=