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[34.140.232.180]) by smtp.gmail.com with ESMTPSA id s7-20020adff807000000b00343d6c7240fsm11098732wrp.35.2024.04.09.03.43.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 09 Apr 2024 03:43:19 -0700 (PDT) Date: Tue, 9 Apr 2024 10:43:15 +0000 From: Mostafa Saleh To: Aleksandr Aprelkov Cc: Will Deacon , Robin Murphy , Joerg Roedel , Jason Gunthorpe , Nicolin Chen , Michael Shavit , Lu Baolu , Marc Zyngier , linux-arm-kernel@lists.infradead.org, iommu@lists.linux.dev, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2] iommu/arm-smmu-v3: Free MSIs in case of ENOMEM Message-ID: References: <20240403053759.643164-1-aaprelkov@usergate.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20240403053759.643164-1-aaprelkov@usergate.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240409_034324_363376_C9A52004 X-CRM114-Status: GOOD ( 21.73 ) 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 SGkgQWxla3NhbmRyLAoKT24gV2VkLCBBcHIgMDMsIDIwMjQgYXQgMTI6Mzc6NTlQTSArMDcwMCwg QWxla3NhbmRyIEFwcmVsa292IHdyb3RlOgo+IElmIGRldm1fYWRkX2FjdGlvbigpIHJldHVybnMg RU5PTUVNLCB0aGVuIE1TSXMgYWxsb2NhdGVkIGJ1dAo+IG5vdCBmcmVlZCBvbiB0ZWFyZG93bi4K PiAKPiBGb3VuZCBieSBMaW51eCBWZXJpZmljYXRpb24gQ2VudGVyIChsaW51eHRlc3Rpbmcub3Jn KSB3aXRoIFNWQUNFLgo+IAo+IEZpeGVzOiAxNjZiZGJkMjMxNjEgKCJpb21tdS9hcm0tc21tdTog QWRkIHN1cHBvcnQgZm9yIE1TSSBvbiBTTU1VdjMiKQo+IFNpZ25lZC1vZmYtYnk6IEFsZWtzYW5k ciBBcHJlbGtvdiA8YWFwcmVsa292QHVzZXJnYXRlLmNvbT4KPiAtLS0KPiB2MjogVXNlIGFwcHJv cHJpYXRlIGZ1bmN0aW9uIGZvciByZWdpc3RyYXRpb24gZmFpbHVyZSBhcyAKPiBKb25hdGhhbiBD YW1lcm9uIDxKb25hdGhhbi5DYW1lcm9uQEh1YXdlaS5jb20+IHN1Z2dlc3RlZC4KPiAKPiAgZHJp dmVycy9pb21tdS9hcm0vYXJtLXNtbXUtdjMvYXJtLXNtbXUtdjMuYyB8IDQgKysrLQo+ICAxIGZp bGUgY2hhbmdlZCwgMyBpbnNlcnRpb25zKCspLCAxIGRlbGV0aW9uKC0pCj4gCj4gZGlmZiAtLWdp dCBhL2RyaXZlcnMvaW9tbXUvYXJtL2FybS1zbW11LXYzL2FybS1zbW11LXYzLmMgYi9kcml2ZXJz L2lvbW11L2FybS9hcm0tc21tdS12My9hcm0tc21tdS12My5jCj4gaW5kZXggNDFmOTNjM2FiMTYw Li44ODAwYWYwNDFlNWYgMTAwNjQ0Cj4gLS0tIGEvZHJpdmVycy9pb21tdS9hcm0vYXJtLXNtbXUt djMvYXJtLXNtbXUtdjMuYwo+ICsrKyBiL2RyaXZlcnMvaW9tbXUvYXJtL2FybS1zbW11LXYzL2Fy bS1zbW11LXYzLmMKPiBAQCAtMzQwMiw3ICszNDAyLDkgQEAgc3RhdGljIHZvaWQgYXJtX3NtbXVf c2V0dXBfbXNpcyhzdHJ1Y3QgYXJtX3NtbXVfZGV2aWNlICpzbW11KQo+ICAJc21tdS0+cHJpcS5x LmlycSA9IG1zaV9nZXRfdmlycShkZXYsIFBSSVFfTVNJX0lOREVYKTsKPiAgCj4gIAkvKiBBZGQg Y2FsbGJhY2sgdG8gZnJlZSBNU0lzIG9uIHRlYXJkb3duICovCj4gLQlkZXZtX2FkZF9hY3Rpb24o ZGV2LCBhcm1fc21tdV9mcmVlX21zaXMsIGRldik7Cj4gKwlyZXQgPSBkZXZtX2FkZF9hY3Rpb25f b3JfcmVzZXQoZGV2LCBhcm1fc21tdV9mcmVlX21zaXMsIGRldik7Cj4gKwlpZiAocmV0KQo+ICsJ CWRldl93YXJuKGRldiwgImZhaWxlZCB0byBhZGQgZnJlZSBNU0lzIGNhbGxiYWNrIC0gZmFsbGlu ZyBiYWNrIHRvIHdpcmVkIGlycXNcbiIpOwoKSSBhbSBub3Qgc3VyZSB0aGF0IGlzIHRoZSByaWdo dCBmaXgsIGFzIGFsbG93aW5nIHRoZSBkcml2ZXIgdG8gcHJvYmUKd2l0aG91dCBNU0lzLCBzZWVt cyB3b3JzZSB0aGFuIGxlYWtpbmcgTVNJIG1lbW9yeS4KCklNSE8sIHdlIGNhbiBqdXN0IGFkZCBz b21ldGhpbmcgbGlrZToKICAgIGRldl9lcnIoc21tdS0+ZGV2LCDigJxDYW7igJl0IGFsbG9jYXRl IGRldm0gYWN0aW9uLCBNU0lzIGFyZSBuZXZlciBmcmVlZCEgIVxu4oCdKSA7CgpBbHNvLCB3ZSBj YW7igJl0IHVuY29uZGl0aW9uYWxseSBmYWxsYmFjayB0byB3aXJlZCBpcnFzIGlmIE1TSSBleGlz dHMsCmFjY29yZGluZyB0byB0aGUgdXNlciBtYW51YWw6CiAgICBBbiBpbXBsZW1lbnRhdGlvbiBt dXN0IHN1cHBvcnQgb25lIG9mLCBvciBvcHRpb25hbGx5IGJvdGggb2YsCiAgICB3aXJlZCBpbnRl cnJ1cHRzIGFuZCBNU0lzCiAgICAuLi4KICAgIFRoZSBkaXNjb3Zlcnkgb2Ygc3VwcG9ydCBmb3Ig d2lyZWQgaW50ZXJydXB0cyBpcyBJTVBMRU1FTlRBVElPTiBERUZJTkVELgoKV2UgY2FuIGFkZCBz b21lIGxvZ2ljLCB0byBjaGVjayBkdC9hY3BpIGlycXMgYW5kIHRvIGNob29zZSB0byBmYWxsYmFj awpvciBub3QgYmFzZWQgb24gdGhhdCwgYnV0LCBpZiB3ZSBnZXQgLUVOT01FTSwgKGVzcGVjaWFs bHkgZWFybHkgYXQKcHJvYmUpIHNvbWV0aGluZyByZWFsbHkgd2VudCB3cm9uZywgc28gSSBhbSBu b3Qgc3VyZSBpdOKAmXMgd29ydGgKdGhlIGNvbXBsZXhpdHkuCgo+ICB9Cj4gIAo+ICBzdGF0aWMg dm9pZCBhcm1fc21tdV9zZXR1cF91bmlxdWVfaXJxcyhzdHJ1Y3QgYXJtX3NtbXVfZGV2aWNlICpz bW11KQo+IC0tIAo+IDIuMzQuMQo+IApUaGFua3MsCk1vc3RhZmEKCl9fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmxpbnV4LWFybS1rZXJuZWwgbWFpbGluZyBs aXN0CmxpbnV4LWFybS1rZXJuZWxAbGlzdHMuaW5mcmFkZWFkLm9yZwpodHRwOi8vbGlzdHMuaW5m cmFkZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4LWFybS1rZXJuZWwK