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Fri, 7 Jan 2022 23:28:26 +0100 (CET) Date: Fri, 7 Jan 2022 23:28:26 +0100 From: Pali =?utf-8?B?Um9ow6Fy?= To: Bjorn Helgaas Cc: Thomas Petazzoni , Lorenzo Pieralisi , Rob Herring , Krzysztof =?utf-8?Q?Wilczy=C5=84ski?= , Bjorn Helgaas , Marek =?utf-8?B?QmVow7pu?= , linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 08/15] PCI: mvebu: Propagate errors when updating PCI_IO_BASE and PCI_MEM_BASE registers Message-ID: <20220107222826.cv2bzywwayjwzy3c@pali> References: <20211125124605.25915-9-pali@kernel.org> <20220107215504.GA406217@bhelgaas> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20220107215504.GA406217@bhelgaas> User-Agent: NeoMutt/20180716 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220107_142831_560369_D2F37053 X-CRM114-Status: GOOD ( 23.60 ) 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 T24gRnJpZGF5IDA3IEphbnVhcnkgMjAyMiAxNTo1NTowNCBCam9ybiBIZWxnYWFzIHdyb3RlOgo+ IE9uIFRodSwgTm92IDI1LCAyMDIxIGF0IDAxOjQ1OjU4UE0gKzAxMDAsIFBhbGkgUm9ow6FyIHdy b3RlOgo+ID4gUHJvcGVybHkgcHJvcGFnYXRlIGZhaWx1cmUgZnJvbSBtdmVidV9wY2llX2FkZF93 aW5kb3dzKCkgZnVuY3Rpb24gYmFjayB0bwo+ID4gdGhlIGNhbGxlciBtdmVidV9wY2lfYnJpZGdl X2VtdWxfYmFzZV9jb25mX3dyaXRlKCkgYW5kIGNvcnJlY3RseSB1cGRhdGVzCj4gPiBQQ0lfSU9f QkFTRSwgUENJX01FTV9CQVNFIGFuZCBQQ0lfSU9fQkFTRV9VUFBFUjE2IHJlZ2lzdGVycyBvbiBl cnJvci4KPiA+IE9uIGVycm9yIHNldCBiYXNlIHZhbHVlIGhpZ2hlciB0aGFuIGxpbWl0IHZhbHVl IHdoaWNoIGluZGljYXRlcyB0aGF0Cj4gPiBhZGRyZXNzIHJhbmdlIGlzIGRpc2FibGVkLiAKPiAK PiBEb2VzIHRoZSBzcGVjIHNheSB0aGF0IGlmIHNvZnR3YXJlIHByb2dyYW1zIHNvbWV0aGluZyBp bnZhbGlkLAo+IGhhcmR3YXJlIHNob3VsZCBwcm9hY3RpdmVseSBzZXQgdGhlIGJhc2UgYW5kIGxp bWl0IHJlZ2lzdGVycyB0bwo+IGRpc2FibGUgdGhlIHdpbmRvdz8KCk5vLiBCdXQgdGhpcyBwYXRj aCBhZGRyZXNzIHNvbWV0aGluZyB0b3RhbGx5IGRpZmZlcmVudC4gU29mdHdhcmUgY2FuIGRvCmZ1 bGx5IHZhbGlkIG9wZXJhdGlvbiwgZS5nLiB0cnkgdG8gc2V0IGZvcndhcmRpbmcgbWVtb3J5IHdp bmRvdyBhcyBsYXJnZQphcyBwb3NzaWJsZS4gQnV0IGJlY2F1c2UgdGhpcyBkcml2ZXIgImVtdWxh dGVzIiBwY2kgYnJpZGdlIGJ5IGNhbGxpbmcKc29mdHdhcmUva2VybmVsIGZ1bmN0aW9uIChtdmVi dV9wY2llX2FkZF93aW5kb3dzKSwgc29tZSBvcGVyYXRpb25zIHdoaWNoCmluIHJlYWwgSFcgY2Fu bm90IGhhcHBlbiwgYXJlIHBvc3NpYmxlIGluIHNvZnR3YXJlLgoKRm9yIGV4YW1wbGUgdGhlcmUg YXJlIGxpbWl0YXRpb25zIGluIHNpemVzIG9mIGZvcndhcmRpbmcgbWVtb3J5IHdpbmRvd3MsCmJl Y2F1c2UgaXQgaXMgZG9uZSBieSBtdmVidS1tYnVzIGRyaXZlciwgd2hpY2ggaXMgcmVzcG9uc2li bGUgZm9yCmNvbmZpZ3VyaW5nIG1hcHBpbmcgYW5kIGZvcndhcmRpbmcgb2YgUENJZSBJL08gYW5k IE1FTSB3aW5kb3dzLiBBbmQgZHVlCnRvIE1hcnZlbGwgSFcsIHRoZXJlIGFyZSByZXN0cmljdGlv bnMgd2hpY2ggYXJlIG5vdCBpbiBQQ0llIEhXLgoKQ3VycmVudGx5IGlmIHN1Y2ggZXJyb3IgaGFw cGVucywgb2J2aW91c2x5IGtlcm5lbCBpcyBub3QgYWJsZSB0byBzZXQKUENJZSB3aW5kb3dzIGFu ZCBpdCBqdXN0IHByaW50IHdhcm5pbmdzIHRvIGRtZXNnLiBUcnlpbmcgdG8gYWNjZXNzIHRoZXNl CndpbmRvd3Mgd291bGQgcmVzdWx0IGluIHRoZSB3b3JzdCBjYXNlIGluIGNyYXNoZXMuCgpXaXRo IHRoaXMgY2hhbmdlIHdoZW4gbXZlYnVfcGNpZV9hZGRfd2luZG93cygpIGZ1bmN0aW9uIGZhaWxz IHRoZW4gaW50bwplbXVsYXRlZCBjb25maWcgc3BhY2UgaXMgcHV0IGluZm9ybWF0aW9uIHRoYXQg cGFydGljdWxhciBmb3J3YXJkaW5nCndpbmRvdyBpcyBkaXNhYmxlZC4gSSB0aGluayB0aGF0IGl0 IGlzIGJldHRlciB0byBpbmRpY2F0ZSBpdCBpbiBjb25maWcKc3BhY2Ugd2hhdCBpcyB0aGUgY3Vy cmVudCAicmVhbGl0eSIgb2YgaGFyZHdhcmUgY29uZmlndXJhdGlvbi4gSWYgd2luZG93CmlzIGRp c2FibGVkIGluIHJlYWwtSFcgKG1lYW5pbmcgaW4gbXZlYnUtbWJ1cyBkcml2ZXIpIHRoZW4gc2hv dyBpdCBhbHNvCmluIGVtdWxhdGVkIGNvbmZpZyBzcGFjZSBvZiBwY2kgYnJpZGdlLgoKRG8geW91 IGhhdmUgYmV0dGVyIGlkZWEgd2hhdCBzaG91bGQgZW11bGF0ZWQgcGNpIGJyaWRnZSBkbywgaWYg c29mdHdhcmUKdHJ5IHRvIHNldCBmdWxseSB2YWxpZCBjb25maWd1cmF0aW9uIG9mIGZvcndhcmRp bmcgd2luZG93LCBidXQgaXQgaXMgbm90CnBvc3NpYmxlIHRvIGFjaGlldmUgaXQgKGV2ZW4gY29t cGxpYW50IFBDSSBicmlkZ2UgbXVzdCBiZSBhYmxlIHRvIGRvCml0KT8KCj4gSSdtIG5vdCBzdXJl IEkndmUgc2VlbiBoYXJkd2FyZSB0aGF0IGRvZXMgdGhpcywgYW5kIGl0IHNlZW1zIC4uLiBtYXli ZQo+IGEgbGl0dGxlIGFnZ3Jlc3NpdmUuCj4gCj4gV2hhdCBoYXBwZW5zIGlmIHNvZnR3YXJlIHdy aXRlcyB0aGUgYmFzZSBhbmQgbGltaXQgaW4gdGhlIHdyb25nIG9yZGVyLAo+IHNvIHRoZSB3aW5k b3cgaXMgaW52YWxpZCBhZnRlciB0aGUgZmlyc3Qgd3JpdGUgYnV0IHZhbGlkIGFmdGVyIHRoZQo+ IHNlY29uZD8gIFRoYXQgYWN0dWFsbHkgc291bmRzIGxpa2UgaXQgY291bGQgYmUgYSBzZW5zaWJs ZSBzdHJhdGVneSB0bwo+IHByZXZlbnQgYSBwYXJ0aWFsbHktY29uZmlndXJlZCB3aW5kb3cgZnJv bSBiZWluZyBhY3RpdmUuCj4gCj4gQmpvcm4KCkludmFsaWQgd2luZG93IChsaW1pdCA8IGJhc2Up IG1lYW5zIHRoYXQgd2luZG93IGlzIGRpc2FibGVkLiBBbmQKcGNpLW12ZWJ1LmMgaW4gaXRzIGNh bGxiYWNrcyBmcm9tIHBjaS1icmlkZ2UtZW11bC5jIHNob3VsZCBjb3JyZWN0bHkKaGFuZGxlIGl0 IGFuZCBwcm9wYWdhdGVzIGluZm9ybWF0aW9uIGFib3V0IGRpc2FibGVtZW50IHRvIG12ZWJ1LW1i dXMKZHJpdmVyLgoKQWZ0ZXIgd2luZG93IGlzIHZhbGlkIGFnYWluIChsaW1pdCA+IGJhc2UpIHRo ZW4gcGNpLW12ZWJ1LmMgY2FsbAptdmVidS1tYnVzIHRvIHNldHVwIG5ldyBtYXBwaW5nLgoKX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KbGludXgtYXJtLWtl cm5lbCBtYWlsaW5nIGxpc3QKbGludXgtYXJtLWtlcm5lbEBsaXN0cy5pbmZyYWRlYWQub3JnCmh0 dHA6Ly9saXN0cy5pbmZyYWRlYWQub3JnL21haWxtYW4vbGlzdGluZm8vbGludXgtYXJtLWtlcm5l bAo=