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([2a02:168:6806:0:2e2a:2e97:eba4:c94c]) by smtp.gmail.com with ESMTPSA id a3-20020adffac3000000b002366eb01e07sm688826wrs.114.2022.10.23.04.58.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 23 Oct 2022 04:58:38 -0700 (PDT) Message-ID: Subject: Re: REGRESSION in 6.0-rc7 caused by patch "ARM/dma-mapping: use dma-direct unconditionally" From: Klaus Kudielka To: "Russell King (Oracle)" , Marcin Wojtas Cc: Marek =?ISO-8859-1?Q?Beh=FAn?= , pali@kernel.org, Christoph Hellwig , Robin Murphy , Arnd Bergmann , Andre Przywara , Marc Zyngier , Linus Torvalds , Andrew Lunn , Gregory Clement , Greg Kroah-Hartman , iommu@lists.linux-foundation.org, linux-arm-kernel@lists.infradead.org Date: Sun, 23 Oct 2022 13:58:37 +0200 In-Reply-To: References: <20220930151028.0e518421@dellmb> <630be11f-09ef-02d4-69f7-c7880ae5674c@arm.com> <20220930165234.729ad68c@dellmb> <20220930170205.490f1a6b@dellmb> <20221003073037.GB2108@lst.de> <20221003172533.6dc87184@dellmb> <20221004102615.05905935@thinkpad> User-Agent: Evolution 3.46.0-2 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221023_045842_454947_14FDCD93 X-CRM114-Status: GOOD ( 15.02 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org T24gVGh1LCAyMDIyLTEwLTIwIGF0IDE5OjIyICswMTAwLCBSdXNzZWxsIEtpbmcgKE9yYWNsZSkg d3JvdGU6Cj4gSXMgaXQgcG9zc2libGUgdGhhdCB0aGlzIHdvdWxkIGFsc28gY2F1c2UgZGF0YSBj b3JydXB0aW9uIHJlYWRpbmcgZnJvbQo+IGEgU0FUQSBjYXJkIG9uIGFybWFkYS0zOHggcGxhdGZv cm1zPwo+IAo+IEknbSBnZXR0aW5nIHdpdGggNi4wOgo+IAo+IFvCoMKgwqAgMS40MTAxMTVdIEVY VDQtZnMgZXJyb3IgKGRldmljZSBzZGExKTogaHRyZWVfZGlyYmxvY2tfdG9fdHJlZToxMDkzOgo+ IGlub2RlICMyNTY6IGJsb2NrIDg3OTc6IGNvbW0gc3lzdGVtZDogYmFkIGVudHJ5IGluIGRpcmVj dG9yeTogcmVjX2xlbiAlIDQKPiAhPSAwIC0gb2Zmc2V0PTAsIGlub2RlPTMzMTg4LCByZWNfbGVu PTM1MDk3LCBzaXplPTQwOTYgZmFrZT0wCj4gCj4gd2hpY2ggYXBwZWFycyB0byBiZSBkdWUgdG8g cmVhZGluZyBiYWQgZGF0YSBmcm9tIHRoZSBTQVRBIGRldmljZSAtCj4gd2hhdCB0aGlzIHRlbGxz IG1lIGluIGlub2RlIGFuZCByZWNfbGVuIGlzIG5vdCB3aGF0IGlzIGFjdHVhbGx5IG9uCj4gdGhl IGRldmljZSBpbiBxdWVzdGlvbi4KPiAKPiBCb290aW5nIGJhY2sgdG8gNS4xOSBnaXZlcyBhIGNs ZWFuIGZpbGVzeXN0ZW0gd2hpY2ggaGFzIG5vIGVycm9ycywKPiBzbyBpdCBpc24ndCBmaWxlc3lz dGVtIGNvcnJ1cHRpb24sIGl0IGlzIGFuIGluYWJpbGl0eSBmb3IgNi4wIHRvCj4gcmVhZCBkYXRh IGNvcnJlY3RseSBmcm9tIHRoZSBkZXZpY2UuCj4gCgpGb3IgcmVmZXJlbmNlLCBJIGFtIHJ1bm5p bmcgNi4wLjAsIHdpdGggdGhlIGZvbGxvd2luZyB0d28gcGF0Y2hlcyBhcHBsaWVkCm9uIHRvcDoK CkFSTS9kbWEtbWFwcNGWbmc6IGRvbid0IG92ZXJyaWRlIC0+ZG1hX2NvaGVyZW50IHdoZW4gc2V0 IGZyb20gYSBidXMgbm90aWZpZXIKQVJNL2RtYS1tYXBwaW5nOiByZW1vdmUgdGhlIGRtYV9jb2hl cmVudCBtZW1iZXIgb2Ygc3RydWN0IGRldl9hcmNoZGF0YQoKVHVycmlzIE9tbmlhIChBcm1hZGEg Mzg1KSwgRVhUNCByb290ZnMgb24gYSBLaW5nc3RvbiBVVjUwMCBtU0FUQSBkcml2ZS4KCkkgaGF2 ZSAxNiBkYXlzIHVwdGltZSBhbmQgYW0gZXJyb3ItZnJlZSwgYXMgZmFyIGFzIEkgY2FuIHRlbGwu IERlZmluaXRlbHksCm5vdCBhIHNpbmdsZSBFWFQ0LWZzIGVycm9yLgoKUmVnYXJkcywgS2xhdXMK CgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpsaW51eC1h cm0ta2VybmVsIG1haWxpbmcgbGlzdApsaW51eC1hcm0ta2VybmVsQGxpc3RzLmluZnJhZGVhZC5v cmcKaHR0cDovL2xpc3RzLmluZnJhZGVhZC5vcmcvbWFpbG1hbi9saXN0aW5mby9saW51eC1hcm0t a2VybmVsCg==