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: [RFC,v3,2/3] acpi: apei: Do not panic() on PCIe errors reported through GHES From: Alexandru Gagniuc Message-Id: Date: Thu, 26 Apr 2018 12:44:57 -0500 To: Borislav Petkov Cc: linux-acpi@vger.kernel.org, linux-edac@vger.kernel.org, "Rafael J. Wysocki" , Len Brown , Tony Luck , Mauro Carvalho Chehab , Robert Moore , Erik Schmauss , Tyler Baicar , Will Deacon , James Morse , Shiju Jose , "Jonathan (Zhixiong) Zhang" , Dongjiu Geng , linux-kernel@vger.kernel.org, devel@acpica.org, austin_bolen@dell.com, alex_gagniuc@dellteam.com, shyam_iyer@dell.com List-ID: SGkgQm9yaXNsYXYsCgpPbiAwNC8yNi8yMDE4IDA2OjE5IEFNLCBCb3Jpc2xhdiBQZXRrb3Ygd3Jv dGU6Cj4gT24gV2VkLCBBcHIgMjUsIDIwMTggYXQgMDM6Mzk6NTBQTSAtMDUwMCwgQWxleGFuZHJ1 IEdhZ25pdWMgd3JvdGU6Cj4+IEBAIC05MzIsNyArOTcxLDcgQEAgc3RhdGljIHZvaWQgX19wcm9j ZXNzX2Vycm9yKHN0cnVjdCBnaGVzICpnaGVzKQo+PiAgIHN0YXRpYyBpbnQgZ2hlc19ub3RpZnlf bm1pKHVuc2lnbmVkIGludCBjbWQsIHN0cnVjdCBwdF9yZWdzICpyZWdzKQo+PiAgIHsKPj4gICAJ c3RydWN0IGdoZXMgKmdoZXM7Cj4+IC0JaW50IHNldiwgcmV0ID0gTk1JX0RPTkU7Cj4+ICsJaW50 IHNldiwgYXNldiwgcmV0ID0gTk1JX0RPTkU7Cj4+ICAgCj4+ICAgCWlmICghYXRvbWljX2FkZF91 bmxlc3MoJmdoZXNfaW5fbm1pLCAxLCAxKSkKPj4gICAJCXJldHVybiByZXQ7Cj4+IEBAIC05NDUs OCArOTg0LDkgQEAgc3RhdGljIGludCBnaGVzX25vdGlmeV9ubWkodW5zaWduZWQgaW50IGNtZCwg c3RydWN0IHB0X3JlZ3MgKnJlZ3MpCj4+ICAgCQkJcmV0ID0gTk1JX0hBTkRMRUQ7Cj4+ICAgCQl9 Cj4+ICAgCj4+ICsJCWFzZXYgPSBnaGVzX2FjdHVhbF9zZXZlcml0eShnaGVzKTsKPj4gICAJCXNl diA9IGdoZXNfc2V2ZXJpdHkoZ2hlcy0+ZXN0YXR1cy0+ZXJyb3Jfc2V2ZXJpdHkpOwo+IAo+IFNv IHJlbmFtaW5nIGdoZXNfZGVmZXJyYWJsZV9zZXZlcml0eSgpIHRvIGdoZXNfYWN0dWFsX3NldmVy aXR5KCkgaXMgbm90Cj4gYSBiaWcgY2hhbmdlLiBBbmQgdGhhdCdzIG5vdCB3aGF0IEkgbWVhbnQu CgpJJ20gc29ycnkgSSBtaXN1bmRlcnN0b29kIHlvdS4KCj4gSSdkIGxpa2UgdG8gc2VlIGhlcmU6 Cj4gCj4gCQkgc2V2ID0gZ2hlc19zZXZlcml0eShnaGVzKTsKCgkJIHNldiA9IGdoZXNfc2V2ZXJp dHkoZ2hlcyk7CgoKPiBhbmQgaW5zaWRlIHlvdSBkbyBhbGwgdGhlIHJlcXVpcmVkIG1hcHBpbmcv c2V2ZXJpdHkgcHJvY2Vzc2luZy9ldGMuIEFuZAo+IHlvdSBjYW4gcmVuYW1lIHRoZSBjdXJyZW50 IGdoZXNfc2V2ZXJpdHkoKSB0byBnaGVzX21hcF9jcGVyX3NldmVyaXR5KCkKPiBvciB3aGF0ZXZl ci4uLgoKSSBhZ3JlZSB0aGF0IHRoZSBjdXJyZW50IGdoZXNfc2V2ZXJpdHkoKSBuYW1lIGlzIHZh Z3VlLiBJJ2xsIGdldCBpdCBkb25lIApwcm9wZXJseSBpbiB2NCAobmV4dCB3ZWVrKS4KCj4+IC0J CWlmIChzZXYgPj0gR0hFU19TRVZfUEFOSUMpIHsKPj4gKwkJaWYgKChzZXYgPj0gR0hFU19TRVZf UEFOSUMpICYmIChhc2V2ID49IEdIRVNfU0VWX1BBTklDKSkgewo+IAo+IC4uLiBzbyB0aGF0IHRo aXMgY2hhbmdlIGRvZXNuJ3QgaGFwcGVuIGFuZCB0aGVyZSBhcmUgbm90IHR3byBzZXZlcml0aWVz Cj4gcXVlcmllZCBidXQgYSBzaW5nbGUgb25lLgoKVHdvIHNldmVyaXRpZXMgaXMgYSByZXN1bHQg b2YgdGhlIHdhbmt5IEdIRVMgZGF0YSBzdHJ1Y3R1cmUuIE5vdGhpbmcgCnNheXMgd2UgaGF2ZSB0 byB1c2UgdGhlIHNldmVyaXR5IGZpZWxkIGluIHRoZSBoZWFkZXIuLi4gaWYgeW91J3JlIG9rYXkg CndpdGgganVzdCBpZ25vcmluZyBpdC4KCkFsZXgKLS0tClRvIHVuc3Vic2NyaWJlIGZyb20gdGhp cyBsaXN0OiBzZW5kIHRoZSBsaW5lICJ1bnN1YnNjcmliZSBsaW51eC1lZGFjIiBpbgp0aGUgYm9k eSBvZiBhIG1lc3NhZ2UgdG8gbWFqb3Jkb21vQHZnZXIua2VybmVsLm9yZwpNb3JlIG1ham9yZG9t byBpbmZvIGF0ICBodHRwOi8vdmdlci5rZXJuZWwub3JnL21ham9yZG9tby1pbmZvLmh0bWwK