From: Arnd Bergmann <arnd@arndb.de> To: linux-kernel@vger.kernel.org, Masahiro Yamada <masahiroy@kernel.org>, Nicolas Pitre <nico@fluxnic.net> Cc: Arnd Bergmann <arnd@arndb.de>, Andrzej Hajda <a.hajda@samsung.com>, Neil Armstrong <narmstrong@baylibre.com>, Laurent Pinchart <Laurent.pinchart@ideasonboard.com>, Jonas Karlman <jonas@kwiboo.se>, Jernej Skrabec <jernej.skrabec@siol.net>, David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>, Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>, "David S. Miller" <davem@davemloft.net>, Saeed Mahameed <saeedm@mellanox.com>, Leon Romanovsky <leon@kernel.org>, dri-devel@lists.freedesktop.org, linux-renesas-soc@vger.kernel.org, netdev@vger.kernel.org, linux-rdma@vger.kernel.org Subject: [RFC 0/6] Regressions for "imply" behavior change Date: Wed, 8 Apr 2020 22:27:05 +0200 [thread overview] Message-ID: <20200408202711.1198966-1-arnd@arndb.de> (raw) Hi everyone, I've just restarted doing randconfig builds on top of mainline Linux and found a couple of regressions with missing dependency from the recent change in the "imply" keyword in Kconfig, presumably these two patches: 3a9dd3ecb207 kconfig: make 'imply' obey the direct dependency def2fbffe62c kconfig: allow symbols implied by y to become m I have created workarounds for the Kconfig files, which now stop using imply and do something else in each case. I don't know whether there was a bug in the kconfig changes that has led to allowing configurations that were not meant to be legal even with the new semantics, or if the Kconfig files have simply become incorrect now and the tool works as expected. Please have a look at the cases I found, and what you think we should do about them. I assume there are a couple more like these, the six regressions here are what I found in the first 1000 randconfig builds on the kernel. Arnd Arnd Bergmann (6): thunder: select PTP driver if possible net/mlx5e: fix VXLAN dependency LiquidIO VF: add dependency for PTP_1588_CLOCK drm/bridge/sii8620: fix extcon dependency drm/rcar-du: fix selection of CMM driver drm/rcar-du: fix lvds dependency drivers/gpu/drm/bridge/Kconfig | 1 - drivers/gpu/drm/bridge/sil-sii8620.c | 5 +++-- drivers/gpu/drm/rcar-du/Kconfig | 7 ++----- drivers/net/ethernet/cavium/Kconfig | 4 ++-- drivers/net/ethernet/mellanox/mlx5/core/Kconfig | 2 +- 5 files changed, 8 insertions(+), 11 deletions(-) Cc: Andrzej Hajda <a.hajda@samsung.com> Cc: Neil Armstrong <narmstrong@baylibre.com> Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com> Cc: Jonas Karlman <jonas@kwiboo.se> Cc: Jernej Skrabec <jernej.skrabec@siol.net> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Saeed Mahameed <saeedm@mellanox.com> Cc: Leon Romanovsky <leon@kernel.org> Cc: dri-devel@lists.freedesktop.org Cc: linux-kernel@vger.kernel.org Cc: linux-renesas-soc@vger.kernel.org Cc: netdev@vger.kernel.org Cc: linux-rdma@vger.kernel.org -- 2.26.0
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From: Arnd Bergmann <arnd@arndb.de> To: linux-kernel@vger.kernel.org, Masahiro Yamada <masahiroy@kernel.org>, Nicolas Pitre <nico@fluxnic.net> Cc: Jernej Skrabec <jernej.skrabec@siol.net>, Leon Romanovsky <leon@kernel.org>, Arnd Bergmann <arnd@arndb.de>, Jonas Karlman <jonas@kwiboo.se>, David Airlie <airlied@linux.ie>, netdev@vger.kernel.org, Neil Armstrong <narmstrong@baylibre.com>, Saeed Mahameed <saeedm@mellanox.com>, dri-devel@lists.freedesktop.org, linux-renesas-soc@vger.kernel.org, Andrzej Hajda <a.hajda@samsung.com>, Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>, Laurent Pinchart <Laurent.pinchart@ideasonboard.com>, "David S. Miller" <davem@davemloft.net>, linux-rdma@vger.kernel.org Subject: [RFC 0/6] Regressions for "imply" behavior change Date: Wed, 8 Apr 2020 22:27:05 +0200 [thread overview] Message-ID: <20200408202711.1198966-1-arnd@arndb.de> (raw) Hi everyone, I've just restarted doing randconfig builds on top of mainline Linux and found a couple of regressions with missing dependency from the recent change in the "imply" keyword in Kconfig, presumably these two patches: 3a9dd3ecb207 kconfig: make 'imply' obey the direct dependency def2fbffe62c kconfig: allow symbols implied by y to become m I have created workarounds for the Kconfig files, which now stop using imply and do something else in each case. I don't know whether there was a bug in the kconfig changes that has led to allowing configurations that were not meant to be legal even with the new semantics, or if the Kconfig files have simply become incorrect now and the tool works as expected. Please have a look at the cases I found, and what you think we should do about them. I assume there are a couple more like these, the six regressions here are what I found in the first 1000 randconfig builds on the kernel. Arnd Arnd Bergmann (6): thunder: select PTP driver if possible net/mlx5e: fix VXLAN dependency LiquidIO VF: add dependency for PTP_1588_CLOCK drm/bridge/sii8620: fix extcon dependency drm/rcar-du: fix selection of CMM driver drm/rcar-du: fix lvds dependency drivers/gpu/drm/bridge/Kconfig | 1 - drivers/gpu/drm/bridge/sil-sii8620.c | 5 +++-- drivers/gpu/drm/rcar-du/Kconfig | 7 ++----- drivers/net/ethernet/cavium/Kconfig | 4 ++-- drivers/net/ethernet/mellanox/mlx5/core/Kconfig | 2 +- 5 files changed, 8 insertions(+), 11 deletions(-) Cc: Andrzej Hajda <a.hajda@samsung.com> Cc: Neil Armstrong <narmstrong@baylibre.com> Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com> Cc: Jonas Karlman <jonas@kwiboo.se> Cc: Jernej Skrabec <jernej.skrabec@siol.net> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Saeed Mahameed <saeedm@mellanox.com> Cc: Leon Romanovsky <leon@kernel.org> Cc: dri-devel@lists.freedesktop.org Cc: linux-kernel@vger.kernel.org Cc: linux-renesas-soc@vger.kernel.org Cc: netdev@vger.kernel.org Cc: linux-rdma@vger.kernel.org -- 2.26.0 _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
next reply other threads:[~2020-04-08 20:28 UTC|newest] Thread overview: 100+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-04-08 20:27 Arnd Bergmann [this message] 2020-04-08 20:27 ` [RFC 0/6] Regressions for "imply" behavior change Arnd Bergmann 2020-04-08 20:27 ` [RFC 1/6] thunder: select PTP driver if possible Arnd Bergmann 2020-04-08 20:27 ` Arnd Bergmann 2020-04-08 20:27 ` [RFC 2/6] net/mlx5e: fix VXLAN dependency Arnd Bergmann 2020-04-08 20:27 ` Arnd Bergmann 2020-04-08 20:27 ` [RFC 3/6] LiquidIO VF: add dependency for PTP_1588_CLOCK Arnd Bergmann 2020-04-08 20:27 ` Arnd Bergmann 2020-04-08 21:10 ` kbuild test robot 2020-04-08 21:13 ` Arnd Bergmann 2020-04-08 20:27 ` [RFC 4/6] drm/bridge/sii8620: fix extcon dependency Arnd Bergmann 2020-04-08 20:27 ` Arnd Bergmann 2020-04-10 6:56 ` Andrzej Hajda 2020-04-10 6:56 ` Andrzej Hajda 2020-04-14 15:04 ` Arnd Bergmann 2020-04-14 15:04 ` Arnd Bergmann 2020-04-14 15:37 ` Daniel Vetter 2020-04-14 15:37 ` Daniel Vetter 2020-04-15 6:58 ` Jani Nikula 2020-04-15 6:58 ` Jani Nikula 2020-04-08 20:27 ` [RFC 5/6] drm/rcar-du: fix selection of CMM driver Arnd Bergmann 2020-04-08 20:27 ` Arnd Bergmann 2020-04-14 20:17 ` Laurent Pinchart 2020-04-14 20:17 ` Laurent Pinchart 2020-04-14 20:38 ` Arnd Bergmann 2020-04-14 20:38 ` Arnd Bergmann 2020-04-14 20:51 ` Laurent Pinchart 2020-04-14 20:51 ` Laurent Pinchart 2020-04-14 21:10 ` Arnd Bergmann 2020-04-14 21:10 ` Arnd Bergmann 2020-04-15 14:13 ` Geert Uytterhoeven 2020-04-15 14:13 ` Geert Uytterhoeven 2020-04-15 15:18 ` Arnd Bergmann 2020-04-15 15:18 ` Arnd Bergmann 2020-04-15 19:07 ` Arnd Bergmann 2020-04-15 19:07 ` Arnd Bergmann 2020-04-15 21:12 ` Laurent Pinchart 2020-04-15 21:12 ` Laurent Pinchart 2020-04-15 21:22 ` Arnd Bergmann 2020-04-15 21:22 ` Arnd Bergmann 2020-04-16 6:51 ` Daniel Vetter 2020-04-16 6:51 ` Daniel Vetter 2020-04-16 15:17 ` Laurent Pinchart 2020-04-16 15:17 ` Laurent Pinchart 2020-04-08 20:27 ` [RFC 6/6] drm/rcar-du: fix lvds dependency Arnd Bergmann 2020-04-08 20:27 ` Arnd Bergmann 2020-04-08 20:38 ` [RFC 0/6] Regressions for "imply" behavior change Nicolas Pitre 2020-04-08 20:38 ` Nicolas Pitre 2020-04-08 20:46 ` Saeed Mahameed 2020-04-08 20:46 ` Saeed Mahameed 2020-04-08 20:49 ` Arnd Bergmann 2020-04-08 20:49 ` Arnd Bergmann 2020-04-08 21:17 ` Nicolas Pitre 2020-04-08 21:17 ` Nicolas Pitre 2020-04-08 22:42 ` Jason Gunthorpe 2020-04-08 22:42 ` Jason Gunthorpe 2020-04-09 8:41 ` Jani Nikula 2020-04-09 8:41 ` Jani Nikula 2020-04-10 2:40 ` Saeed Mahameed 2020-04-10 2:40 ` Saeed Mahameed 2020-04-10 7:26 ` Geert Uytterhoeven 2020-04-10 7:26 ` Geert Uytterhoeven 2020-04-10 17:13 ` Jason Gunthorpe 2020-04-10 17:13 ` Jason Gunthorpe 2020-04-10 19:04 ` Saeed Mahameed 2020-04-10 19:04 ` Saeed Mahameed 2020-04-14 13:29 ` Jason Gunthorpe 2020-04-14 13:29 ` Jason Gunthorpe 2020-04-14 14:27 ` Arnd Bergmann 2020-04-14 14:27 ` Arnd Bergmann 2020-04-14 15:23 ` Jason Gunthorpe 2020-04-14 15:23 ` Jason Gunthorpe 2020-04-14 15:25 ` Arnd Bergmann 2020-04-14 15:25 ` Arnd Bergmann 2020-04-14 17:49 ` Saeed Mahameed 2020-04-14 17:49 ` Saeed Mahameed 2020-04-14 18:47 ` Arnd Bergmann 2020-04-14 18:47 ` Arnd Bergmann 2020-04-16 3:25 ` Saeed Mahameed 2020-04-16 3:25 ` Saeed Mahameed 2020-04-16 7:20 ` Arnd Bergmann 2020-04-16 7:20 ` Arnd Bergmann 2020-04-16 10:17 ` Jani Nikula 2020-04-16 10:17 ` Jani Nikula 2020-04-16 12:38 ` Arnd Bergmann 2020-04-16 12:38 ` Arnd Bergmann 2020-04-16 14:52 ` Jason Gunthorpe 2020-04-16 14:52 ` Jason Gunthorpe 2020-04-16 15:58 ` Arnd Bergmann 2020-04-16 15:58 ` Arnd Bergmann 2020-04-16 18:05 ` Jason Gunthorpe 2020-04-16 18:05 ` Jason Gunthorpe 2020-04-16 18:38 ` Saeed Mahameed 2020-04-16 18:38 ` Saeed Mahameed 2020-04-16 15:12 ` Nicolas Pitre 2020-04-16 15:12 ` Nicolas Pitre 2020-04-16 18:21 ` Jason Gunthorpe 2020-04-16 18:21 ` Jason Gunthorpe 2020-04-16 19:56 ` Andrzej Hajda 2020-04-16 19:56 ` Andrzej Hajda
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