[{"id":3672536,"web_url":"http://patchwork.ozlabs.org/comment/3672536/","msgid":"","list_archive_url":null,"date":"2026-04-02T03:14:54","subject":"ACK: [SRU][N][PATCH 0/1] Compile error due to nonexistent struct\n member with CONFIG_PCI_EPF_TEST","submitter":{"id":92836,"url":"http://patchwork.ozlabs.org/api/people/92836/","name":"Yufeng Gao","email":"yufeng.gao@canonical.com"},"content":"On 2/4/26 12:55, Noah Wager wrote:\n> BugLink: https://bugs.launchpad.net/bugs/2147065\n>\n> [ Impact ]\n>\n> The noble 6.8 kernel fails to build when CONFIG_PCI_EPF_TEST is enabled, with\n> the following error:\n>\n> ```\n> CC [M] drivers/pci/endpoint/functions/pci-epf-test.o\n> drivers/pci/endpoint/functions/pci-epf-test.c: In function 'pci_epf_test_alloc_space':\n> drivers/pci/endpoint/functions/pci-epf-test.c:863:33: error: 'const struct pci_epc_features' has no member named 'bar'\n> 863 | if (epc_features->bar[bar].type == BAR_FIXED)\n> | ^~\n> drivers/pci/endpoint/functions/pci-epf-test.c:863:52: error: 'BAR_FIXED' undeclared (first use in this function)\n> 863 | if (epc_features->bar[bar].type == BAR_FIXED)\n> | ^~~~~~~~~\n> drivers/pci/endpoint/functions/pci-epf-test.c:863:52: note: each undeclared identifier is reported only once for each function it appears in\n> drivers/pci/endpoint/functions/pci-epf-test.c:864:53: error: 'const struct pci_epc_features' has no member named 'bar'\n> 864 | test_reg_size = epc_features->bar[bar].fixed_size;\n> | ^~\n> make[8]: *** [scripts/Makefile.build:243: drivers/pci/endpoint/functions/pci-epf-test.o] Error 1\n> make[7]: *** [scripts/Makefile.build:481: drivers/pci/endpoint/functions] Error 2\n> make[6]: *** [scripts/Makefile.build:481: drivers/pci/endpoint] Error 2\n> ```\n>\n> This is due to the inclusion of the linux-6.12.y upstream stable commit:\n> e741dabcc52b (\"PCI: endpoint: pci-epf-test: Limit PCIe BAR size for fixed BARs\")\n> without including the dependent (non-stable) commit:\n> e01c9797c0eb (\"PCI: endpoint: Clean up hardware description for BARs\")\n>\n> The 6.12 commit does not fix any issues that have been observed with the 6.8\n> noble kernel, so it should be reverted. After doing so, the kernel compiles\n> when the config is enabled.\n>\n> [ Test Plan ]\n>\n> 1. Apply the revert.\n> 2. Enable CONFIG_PCI_EPF_TEST in the generic 6.8 kernel\n> 3. Compile the kernel.\n>\n> The compilation should succeed with the revert.\n>\n> [ Where problems could occur ]\n>\n> Since this config is disabled in Ubuntu by default, it has not been tested in\n> the past. Even though it compiles with this fix, that does not guarantee\n> correct behaviour in the features that the config enables. For example,\n> reverting this commit means the feature will definitely not work with\n> controllers with too-small fixed BAR sizes, as that is what the commit fixes\n> upstream. If it is needed, a full backport of the commit and its dependents will\n> be necessary.\n>\n> [ Other Info ]\n>\n> For context, this issue was found because the noble:linux-nvidia-tegra kernel\n> needs to enable PCI_EPF_TEST, so more issues may be found once that gets further\n> testing.\n>\n> Noah Wager (1):\n> UBUNTU: SAUCE: Revert \"PCI: endpoint: pci-epf-test: Limit PCIe BAR\n> size for fixed BARs\"\n>\n> drivers/pci/endpoint/functions/pci-epf-test.c | 7 +------\n> 1 file changed, 1 insertion(+), 6 deletions(-)\n>\nAcked-by: Yufeng Gao ","headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=fail reason=\"signature verification failed\" (4096-bit key;\n unprotected) header.d=canonical.com header.i=@canonical.com\n header.a=rsa-sha256 header.s=20251003 header.b=c/JYywVs;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.ubuntu.com\n (client-ip=185.125.189.65; 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charset=\"utf-8\"; Format=\"flowed\"","Errors-To":"kernel-team-bounces@lists.ubuntu.com","Sender":"\"kernel-team\" "}},{"id":3675074,"web_url":"http://patchwork.ozlabs.org/comment/3675074/","msgid":"<3da93170-5e13-41d4-b53b-d4293906b0a0@canonical.com>","list_archive_url":null,"date":"2026-04-09T04:54:45","subject":"ACK: [SRU][N][PATCH 0/1] Compile error due to nonexistent struct\n member with CONFIG_PCI_EPF_TEST","submitter":{"id":85372,"url":"http://patchwork.ozlabs.org/api/people/85372/","name":"Masahiro Yamada","email":"masahiro.yamada@canonical.com"},"content":"On 4/2/26 11:55, Noah Wager wrote:\n> BugLink: https://bugs.launchpad.net/bugs/2147065\n>\n> [ Impact ]\n>\n> The noble 6.8 kernel fails to build when CONFIG_PCI_EPF_TEST is enabled, with\n> the following error:\n>\n> ```\n> CC [M] drivers/pci/endpoint/functions/pci-epf-test.o\n> drivers/pci/endpoint/functions/pci-epf-test.c: In function 'pci_epf_test_alloc_space':\n> drivers/pci/endpoint/functions/pci-epf-test.c:863:33: error: 'const struct pci_epc_features' has no member named 'bar'\n> 863 | if (epc_features->bar[bar].type == BAR_FIXED)\n> | ^~\n> drivers/pci/endpoint/functions/pci-epf-test.c:863:52: error: 'BAR_FIXED' undeclared (first use in this function)\n> 863 | if (epc_features->bar[bar].type == BAR_FIXED)\n> | ^~~~~~~~~\n> drivers/pci/endpoint/functions/pci-epf-test.c:863:52: note: each undeclared identifier is reported only once for each function it appears in\n> drivers/pci/endpoint/functions/pci-epf-test.c:864:53: error: 'const struct pci_epc_features' has no member named 'bar'\n> 864 | test_reg_size = epc_features->bar[bar].fixed_size;\n> | ^~\n> make[8]: *** [scripts/Makefile.build:243: drivers/pci/endpoint/functions/pci-epf-test.o] Error 1\n> make[7]: *** [scripts/Makefile.build:481: drivers/pci/endpoint/functions] Error 2\n> make[6]: *** [scripts/Makefile.build:481: drivers/pci/endpoint] Error 2\n> ```\n>\n> This is due to the inclusion of the linux-6.12.y upstream stable commit:\n> e741dabcc52b (\"PCI: endpoint: pci-epf-test: Limit PCIe BAR size for fixed BARs\")\n> without including the dependent (non-stable) commit:\n> e01c9797c0eb (\"PCI: endpoint: Clean up hardware description for BARs\")\n>\n> The 6.12 commit does not fix any issues that have been observed with the 6.8\n> noble kernel, so it should be reverted. After doing so, the kernel compiles\n> when the config is enabled.\n>\n> [ Test Plan ]\n>\n> 1. Apply the revert.\n> 2. Enable CONFIG_PCI_EPF_TEST in the generic 6.8 kernel\n> 3. Compile the kernel.\n>\n> The compilation should succeed with the revert.\n>\n> [ Where problems could occur ]\n>\n> Since this config is disabled in Ubuntu by default, it has not been tested in\n> the past. Even though it compiles with this fix, that does not guarantee\n> correct behaviour in the features that the config enables. For example,\n> reverting this commit means the feature will definitely not work with\n> controllers with too-small fixed BAR sizes, as that is what the commit fixes\n> upstream. If it is needed, a full backport of the commit and its dependents will\n> be necessary.\n>\n> [ Other Info ]\n>\n> For context, this issue was found because the noble:linux-nvidia-tegra kernel\n> needs to enable PCI_EPF_TEST, so more issues may be found once that gets further\n> testing.\n>\n> Noah Wager (1):\n> UBUNTU: SAUCE: Revert \"PCI: endpoint: pci-epf-test: Limit PCIe BAR\n> size for fixed BARs\"\n>\n> drivers/pci/endpoint/functions/pci-epf-test.c | 7 +------\n> 1 file changed, 1 insertion(+), 6 deletions(-)\n>\n\nAcked-by: Masahiro Yamada ","headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=fail reason=\"signature verification failed\" (4096-bit key;\n unprotected) header.d=canonical.com header.i=@canonical.com\n header.a=rsa-sha256 header.s=20251003 header.b=V4oggF5C;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.ubuntu.com\n (client-ip=185.125.189.65; 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charset=\"utf-8\"; Format=\"flowed\"","Errors-To":"kernel-team-bounces@lists.ubuntu.com","Sender":"\"kernel-team\" "}},{"id":3676114,"web_url":"http://patchwork.ozlabs.org/comment/3676114/","msgid":"<875x5yrqla.fsf@gmail.com>","list_archive_url":null,"date":"2026-04-11T05:52:33","subject":"APPLIED: [SRU][N][PATCH 0/1] Compile error due to nonexistent\n struct member with CONFIG_PCI_EPF_TEST","submitter":{"id":89305,"url":"http://patchwork.ozlabs.org/api/people/89305/","name":"Mehmet Basaran","email":"mehmet.basaran@canonical.com"},"content":"Applied to noble:linux master-next branch. Thanks.\nNoah Wager writes:\n\n> BugLink: https://bugs.launchpad.net/bugs/2147065\n>\n> [ Impact ]\n>\n> The noble 6.8 kernel fails to build when CONFIG_PCI_EPF_TEST is enabled, with\n> the following error:\n>\n> ```\n> CC [M] drivers/pci/endpoint/functions/pci-epf-test.o\n> drivers/pci/endpoint/functions/pci-epf-test.c: In function 'pci_epf_test_alloc_space':\n> drivers/pci/endpoint/functions/pci-epf-test.c:863:33: error: 'const struct pci_epc_features' has no member named 'bar'\n> 863 | if (epc_features->bar[bar].type == BAR_FIXED)\n> | ^~\n> drivers/pci/endpoint/functions/pci-epf-test.c:863:52: error: 'BAR_FIXED' undeclared (first use in this function)\n> 863 | if (epc_features->bar[bar].type == BAR_FIXED)\n> | ^~~~~~~~~\n> drivers/pci/endpoint/functions/pci-epf-test.c:863:52: note: each undeclared identifier is reported only once for each function it appears in\n> drivers/pci/endpoint/functions/pci-epf-test.c:864:53: error: 'const struct pci_epc_features' has no member named 'bar'\n> 864 | test_reg_size = epc_features->bar[bar].fixed_size;\n> | ^~\n> make[8]: *** [scripts/Makefile.build:243: drivers/pci/endpoint/functions/pci-epf-test.o] Error 1\n> make[7]: *** [scripts/Makefile.build:481: drivers/pci/endpoint/functions] Error 2\n> make[6]: *** [scripts/Makefile.build:481: drivers/pci/endpoint] Error 2\n> ```\n>\n> This is due to the inclusion of the linux-6.12.y upstream stable commit:\n> e741dabcc52b (\"PCI: endpoint: pci-epf-test: Limit PCIe BAR size for fixed BARs\")\n> without including the dependent (non-stable) commit:\n> e01c9797c0eb (\"PCI: endpoint: Clean up hardware description for BARs\")\n>\n> The 6.12 commit does not fix any issues that have been observed with the 6.8\n> noble kernel, so it should be reverted. After doing so, the kernel compiles\n> when the config is enabled.\n>\n> [ Test Plan ]\n>\n> 1. Apply the revert.\n> 2. Enable CONFIG_PCI_EPF_TEST in the generic 6.8 kernel\n> 3. Compile the kernel.\n>\n> The compilation should succeed with the revert.\n>\n> [ Where problems could occur ]\n>\n> Since this config is disabled in Ubuntu by default, it has not been tested in\n> the past. Even though it compiles with this fix, that does not guarantee\n> correct behaviour in the features that the config enables. For example,\n> reverting this commit means the feature will definitely not work with\n> controllers with too-small fixed BAR sizes, as that is what the commit fixes\n> upstream. If it is needed, a full backport of the commit and its dependents will\n> be necessary.\n>\n> [ Other Info ]\n>\n> For context, this issue was found because the noble:linux-nvidia-tegra kernel\n> needs to enable PCI_EPF_TEST, so more issues may be found once that gets further\n> testing.\n>\n> Noah Wager (1):\n> UBUNTU: SAUCE: Revert \"PCI: endpoint: pci-epf-test: Limit PCIe BAR\n> size for fixed BARs\"\n>\n> drivers/pci/endpoint/functions/pci-epf-test.c | 7 +------\n> 1 file changed, 1 insertion(+), 6 deletions(-)\n>\n> -- \n> 2.43.0\n>\n>\n> -- \n> kernel-team mailing list\n> kernel-team@lists.ubuntu.com\n> https://lists.ubuntu.com/mailman/listinfo/kernel-team","headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=fail reason=\"signature verification failed\" (4096-bit key;\n unprotected) header.d=canonical.com header.i=@canonical.com\n header.a=rsa-sha256 header.s=20251003 header.b=K/mdT8m4;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.ubuntu.com\n (client-ip=185.125.189.65; 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