Add compatibility for RHEL 8.10 and RHEL 9.6 kernels. Update nightly build
and regression test configs, and adjust version checks in the codebase
to handle changes in these new RHEL kernel releases.
Replace combined sysfs_emit() calls with separate sysfs_emit() and
sysfs_emit_at() invocations when emitting SCST_SYSFS_KEY_MARK in sysfs
attribute show handlers.
This improves code clarity and consistency, explicitly handling the
conditional addition of SCST_SYSFS_KEY_MARK.
This patch does not change any functionality.
Replace scnprintf() with sysfs_emit() and sysfs_emit_at() in sysfs show handlers.
These helper functions are specifically designed for sysfs output, providing safer
handling of buffer lengths and consistency across kernel sysfs interfaces.
This patch does not change any functionality.
Replace snprintf() with scnprintf() in two places:
- code paths that build up a buffer incrementally
- sysfs attribute “show” handlers
scnprintf() guarantees its return value is the number of bytes actually
written (never exceeding the buffer), preventing potential overruns.
This patch does not change any functionality.
Replace all uses of sprintf() with scnprintf() in sysfs attribute
callbacks to eliminate the risk of buffer overflows.
This patch does not change any functionality.
Support for the following scsi layer changes in the Linux kernel v6.14:
- ed638918f4df ("scsi: Rename .slave_alloc() and .slave_destroy()")
- 49515b7fe50c ("scsi: Convert SCSI drivers to .sdev_configure()")
- c9a71ca13f71 ("scsi: Constify struct pci_device_id")
- bd326a5ad639 ("scsi: replace blk_mq_pci_map_queues with blk_mq_map_hw_queues")
The workqueue maintainer wants to remove the create*_workqueue() macros
because these macros always set the WQ_MEM_RECLAIM flag and because these
only support literal workqueue names. Hence this patch that replaces the
create*_workqueue() invocations with the definition of this macro. The
WQ_MEM_RECLAIM flag has been retained because I think that flag is necessary
for workqueues created by storage drivers.
Support for the following driver core changes in the Linux kernel v6.11:
- d69d80484598 ("driver core: have match() callback in struct bus_type
take a const *")
Support for the following scsi layer changes in the Linux kernel v6.10:
- 5b7dfbeff92a ("scsi: core: Add a dma_alignment field to the host and
host template")
This patch fixes the installation process for Linux kernels where the
default value of INSTALL_MOD_DIR differs from `extra`.
For instance, it unbreaks `make rpm` against Fedora's kernels, where
INSTALL_MOD_DIR is set to `updates`.
1. Correct a typo, changing `make release` to `make 2release`.
2. Add information about package-related targets to the help section.
3. Remove `dev_handler` directory during the uninstall process.
4. Eliminate the non-existent `tgt` target from the PHONY targets.
5. Introduce SCST_MOD_DIR and SCST_DH_MOD_DIR as helper variables.
The previous series of patches introduced the use of a const pointer to
scsi_host_template. However, scsi_host_alloc() uses a non-const pointer
prior to kernel version 6.4, causing the build to throw the following
error:
passing argument 1 of ‘scsi_host_alloc’ discards ‘const’
qualifier from pointer target type
Hence, cast away the constness to resolve the error.
The previous commit removed support for building with clang. Restore support
for building with clang without breaking cross-compilation support.
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@9209 d57e44dd-8a1f-0410-8b47-8ef2f437770f
Since not all kernel header files are compatible with -Wextra, remove -Wextra.
To enable -Wextra, build SCST with W=1.
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@9054 d57e44dd-8a1f-0410-8b47-8ef2f437770f
Simplify the scst_local driver by always using thread context for passing
commands to SCST.
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@9005 d57e44dd-8a1f-0410-8b47-8ef2f437770f
$(KBUILD_EXTRA_SYMBOLS) is not only used at compile time but also at link
time. Move the $(KBUILD_EXTRA_SYMBOLS) definitions such that it is
available both at compile time and at link time.
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@9000 d57e44dd-8a1f-0410-8b47-8ef2f437770f
While $(src) is always defined, $(KBUILD_EXTMOD) is only defined when
building code as an external module.
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@8999 d57e44dd-8a1f-0410-8b47-8ef2f437770f
When using SG_IO it is easy to submit data buffers that do not match the
alignment requirements of vdisk_blockio. Make the submitter copy buffers
that are not aligned. See also the blk_rq_map_user() call in the Linux
kernel source file drivers/scsi/sg.c.
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@8953 d57e44dd-8a1f-0410-8b47-8ef2f437770f
Copying Module.symvers is the oldest supported method for building external
kernel modules that depend on another external kernel module. Since support
for that method will be removed from Linux kernel v5.5, use
KBUILD_EXTRA_SYMBOLS instead to specify the external symbols SCST kernel
modules depend on. Support for KBUILD_EXTRA_SYMBOLS was introduced in
upstream kernel v2.6.26 so this patch drops support for kernels before
v2.6.26.
git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@8686 d57e44dd-8a1f-0410-8b47-8ef2f437770f
Gleb Chesnokov
Chesnokov Gleb
Bart Van Assche