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[2003:f6:5f47:db04:a716:d2bd:eddb:4813]) by smtp.gmail.com with UTF8SMTPSA id 5b1f17b1804b1-4904526ca21sm323690885e9.3.2026.05.26.07.17.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 26 May 2026 07:17:56 -0700 (PDT) From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig=20=28The=20Capable=20Hub=29?= To: Geert Uytterhoeven , Damien Le Moal , Niklas Cassel , "James E.J. Bottomley" , "Martin K. Petersen" , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Thomas Gleixner , Ingo Molnar , Max Staudt , Andi Shyti , Helge Deller Cc: linux-ide@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org, netdev@vger.kernel.org, linux-i2c@vger.kernel.org, linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org, "Christian A. Ehrhardt" , "Christian A. Ehrhardt" Subject: [PATCH v1 0/8] zorro: Improve handling of pointers in zorro_device_id::driver_data Date: Tue, 26 May 2026 16:17:26 +0200 Message-ID: X-Mailer: git-send-email 2.47.3 Precedence: bulk X-Mailing-List: linux-m68k@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-Developer-Signature: v=1; a=openpgp-sha256; l=2934; i=u.kleine-koenig@baylibre.com; h=from:subject:message-id; bh=Kybdz7vMHfQVHVOh6L5fYiSlCH/4zeDGpuUchAH7Tmw=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBqFat2pwUr5NuB2EXH5DJBMYu0MFsCRZClzwm2T O9dYlR4RvKJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCahWrdgAKCRCPgPtYfRL+ TkGXB/437E8f30EKdaE8q56oaJt5WlihQ7/3LiGG3zpapj74Iu08O8/GcyZKo9eVo8NUFaoQUo0 0hif3fK8HhAxSruKgus+1EQhLy4QeBS7zZsfKLyQOA2B83qRv2SA46ZptWCnVfQXneJtq5rnt/p z+XAhB5HNmZ0vPCrnsT8fL9BH8Yuh3zYqxT9eUnhr+pmthPLdEZiphMZPNHOU/10eCiEJb0TQUX jspmFLtmTRiWApFBZdcAJAZ22LyP1Ls51jKz1i9KFNk3U1cVVN3KNX/HmgRm8an2jPEYqs0Aq03 oaSi8UN/pRU/wOeZjcBFx1K5Dq0XXmkIHLJB0BQbJ8js9PWI X-Developer-Key: i=u.kleine-koenig@baylibre.com; a=openpgp; fpr=0D2511F322BFAB1C1580266BE2DCDD9132669BD6 Content-Transfer-Encoding: 8bit Hello, this series is about improving the handling of pointers in struct zorro_device_id's driver_data. While it's ok on all current Linux platforms to store a pointer in an unsigned long variable, it involves casting that loses type information. This can be nicely seen in patch #7 where after profiting from patch #6 the compiler notices a missing const. Preparing for that change, all zorro_device_ids are converted to use named initializers, which is also a nice cleanup that could stand for itself, as it improves readability for humans. (That is necessary because an anonymous union can be initialized by name, but not using a list initializer.) My motivation for this series is the CHERI hardware extension. With that pointers are bigger than longs and thus you cannot store pointers in zorro_device_id::driver_data. So this series is also about getting support for CHERI into the mainline, but I hope the clean up effects mentioned above are justification enough to accept this series. The dependencies in this series are as follows: - Patch #5 depends on #1, #2 - Patches #7 and #8 depend on patch #6. So if the ata maintainers agreed to merge their patch #1 via scsi, and Geert agrees to patch #5 and that it's also merged via scsi, patches #1, #2, #6 and #7 can go in without further coordination. Patches #3, #4 and #5 are only about using the same initialization style for all zorro_device_id and can go in without coordination. Best regards Uwe Uwe Kleine-König (The Capable Hub) (8): ata: pata_budda: Use named initializer for zorro_device_id scsi: Use named initializer for zorro_device_id net: Use named initializer for zorro_device_id arrays i2c: icy: Use named initializer for zorro_device_id arrays video: fm2fb: Use named initializer for zorro_device_id array zorro: Simplify storing pointers in device id struct scsi: zorro7xx: Make use of struct zorro_device_id::driver_data_ptr video: cirrusfb: Make use of struct zorro_device_id::driver_data_ptr drivers/ata/pata_buddha.c | 8 ++++---- drivers/i2c/busses/i2c-icy.c | 4 ++-- drivers/net/ethernet/8390/hydra.c | 4 ++-- drivers/net/ethernet/8390/xsurf100.c | 4 ++-- drivers/net/ethernet/8390/zorro8390.c | 6 +++--- drivers/net/ethernet/amd/a2065.c | 8 ++++---- drivers/net/ethernet/amd/ariadne.c | 4 ++-- drivers/scsi/a2091.c | 6 +++--- drivers/scsi/gvp11.c | 17 ++++++++-------- drivers/scsi/zorro7xx.c | 16 +++++++-------- drivers/scsi/zorro_esp.c | 2 +- drivers/video/fbdev/cirrusfb.c | 28 +++++++++++++-------------- drivers/video/fbdev/fm2fb.c | 6 +++--- include/linux/mod_devicetable.h | 6 +++++- 14 files changed, 62 insertions(+), 57 deletions(-) base-commit: d387b06f7c15b4639244ad66b4b0900c6a02b430 -- 2.47.3