kernel/linux.git/drivers/scsi/scsi_debug.c, branch v6.18.22

scsi: scsi_debug: Fix atomic write enable module param description

2026-01-02T11:57:04+00:00

[ Upstream commit 1f7d6e2efeedd8f545d3e0e9bf338023bf4ea584 ] The atomic write enable module param is "atomic_wr", and not "atomic_write", so fix the module param description. Fixes: 84f3a3c01d70 ("scsi: scsi_debug: Atomic write support") Signed-off-by: John Garry Reviewed-by: Bart Van Assche Link: https://patch.msgid.link/20251211100651.9056-1-john.g.garry@oracle.com Signed-off-by: Martin K. Petersen Signed-off-by: Sasha Levin

Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

2025-10-04T02:17:48+00:00

Pull SCSI updates from James Bottomley: "Usual driver updates (ufs, mpi3mr, lpfc, pm80xx, mpt3sas) plus assorted cleanups and fixes. The only core update is to sd.c and is mostly cosmetic" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (105 commits) scsi: MAINTAINERS: Update FC element owners scsi: mpt3sas: Update driver version to 54.100.00.00 scsi: mpt3sas: Add support for 22.5 Gbps SAS link rate scsi: mpt3sas: Suppress unnecessary IOCLogInfo on CONFIG_INVALID_PAGE scsi: mpt3sas: Fix crash in transport port remove by using ioc_info() scsi: ufs: ufs-qcom: Add support for limiting HS gear and rate scsi: ufs: pltfrm: Add DT support to limit HS gear and gear rate scsi: ufs: ufs-qcom: Remove redundant re-assignment to hs_rate scsi: ufs: dt-bindings: Document gear and rate limit properties scsi: ufs: core: Fix data race in CPU latency PM QoS request handling scsi: libfc: Fix potential buffer overflow in fc_ct_ms_fill() scsi: storvsc: Remove redundant ternary operators scsi: ufs: core: Change MCQ interrupt enable flow scsi: smartpqi: Replace kmalloc() + copy_from_user() with memdup_user() scsi: hpsa: Replace kmalloc() + copy_from_user() with memdup_user() scsi: hpsa: Fix potential memory leak in hpsa_big_passthru_ioctl() scsi: lpfc: Copyright updates for 14.4.0.11 patches scsi: lpfc: Update lpfc version to 14.4.0.11 scsi: lpfc: Convert debugfs directory counts from atomic to unsigned int scsi: lpfc: Clean up extraneous phba dentries ...

scsi: scsi_debug: Replace kzalloc() + copy_from_user() with memdup_user_nul()

2025-09-10T02:28:50+00:00

Replace kzalloc() followed by copy_from_user() with memdup_user_nul() to improve and simplify sdebug_error_write(). No functional changes intended. Signed-off-by: Thorsten Blum Reviewed-by: Bart Van Assche Signed-off-by: Martin K. Petersen

scsi: scsi_debug: Use vcalloc() to simplify code

2025-08-20T01:56:23+00:00

Use vcalloc() instead of vmalloc() followed by bitmap_zero() to simplify the function sdebug_add_store(). Signed-off-by: Qianfeng Rong Link: https://lore.kernel.org/r/20250806124633.383426-3-rongqianfeng@vivo.com Reviewed-by: Bart Van Assche Signed-off-by: Martin K. Petersen

scsi: scsi_debug: Make read-only arrays static const

2025-07-31T03:26:50+00:00

Don't populate the read-only arrays on the stack at run time, instead make them static const. Also reduces overall size. before: text data bss dec hex filename 367439 89582 5952 462973 7107d drivers/scsi/scsi_debug.o after: text data bss dec hex filename 365847 90702 5952 462501 70ea5 drivers/scsi/scsi_debug.o (gcc 14.2.0, x86-64) Signed-off-by: Colin Ian King Link: https://lore.kernel.org/r/20250729064930.1659007-1-colin.i.king@gmail.com Reviewed-by: Bart Van Assche Signed-off-by: Martin K. Petersen

scsi: Don't use %pK through printk()

2025-06-16T18:34:21+00:00

In the past %pK was preferable to %p as it would not leak raw pointer values into the kernel log. Since commit ad67b74d2469 ("printk: hash addresses printed with %p") the regular %p has been improved to avoid this issue. Furthermore, restricted pointers ("%pK") were never meant to be used through printk(). They can still unintentionally leak raw pointers or acquire sleeping locks in atomic contexts. Switch to the regular pointer formatting which is safer and easier to reason about. Signed-off-by: Thomas Weißschuh Link: https://lore.kernel.org/r/20250611-restricted-pointers-scsi-v1-1-fe31bfbc4910@linutronix.de Signed-off-by: Martin K. Petersen

scsi: scsi_debug: Reduce DEF_ATOMIC_WR_MAX_LENGTH

2025-05-06T02:08:35+00:00

The default atomic write max length in DEF_ATOMIC_WR_MAX_LENGTH is excessively large. For 512B LBS, we would get a 4MB max, but due to block layer atomic write restrictions this is limited to 512KB. Reduce DEF_ATOMIC_WR_MAX_LENGTH to a value which would be more realistic (for a real device supporting atomic writes), 64KB. Signed-off-by: John Garry Link: https://lore.kernel.org/r/20250501100241.930071-1-john.g.garry@oracle.com Signed-off-by: Martin K. Petersen

scsi: scsi_debug: Add ERASE for tapes

2025-04-11T20:19:27+00:00

The command ERASE(6) for tape devices is added. Signed-off-by: Kai Mäkisara Link: https://lore.kernel.org/r/20250310155557.2872-6-Kai.Makisara@kolumbus.fi Signed-off-by: Martin K. Petersen

scsi: scsi_debug: Use scsi_device->type instead os sdebug_ptype where possible

2025-04-11T20:19:27+00:00

Devices of several types can be created for a single host. The module device type should be used only when the devices are created. Scsi_scan sets the device type initially to 0xff and sets the correct type based in Inquiry results. This means that Inquiry must report sdebug_ptype as long as scsi_device->type is not set (the limit 32 comes from the 5-bit length of the Peripheral Device Type in Inquiry). Signed-off-by: Kai Mäkisara Link: https://lore.kernel.org/r/20250310155557.2872-5-Kai.Makisara@kolumbus.fi Signed-off-by: Martin K. Petersen

scsi: scsi_debug: Move some tape-specific commands to separate definitions

2025-04-11T20:19:27+00:00

New definitions (struct opcode_info_t) are created for READ(6), WRITE(6), READ POSITION(10) for tape devices. Signed-off-by: Kai Mäkisara Link: https://lore.kernel.org/r/20250310155557.2872-4-Kai.Makisara@kolumbus.fi Signed-off-by: Martin K. Petersen