kernel.git/arch/powerpc/platforms/cell, branch linux-5.18.y

powerpc/cell/axon_msi: Fix refcount leak in setup_msi_msg_address

2022-08-17T12:42:14Z

[ Upstream commit df5d4b616ee76abc97e5bd348e22659c2b095b1c ] of_get_next_parent() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. Add missing of_node_put() in the error path to avoid refcount leak. Fixes: ce21b3c9648a ("[CELL] add support for MSI on Axon-based Cell systems") Signed-off-by: Miaoqian Lin Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20220605065129.63906-1-linmq006@gmail.com Signed-off-by: Sasha Levin

powerpc/spufs: Fix refcount leak in spufs_init_isolated_loader

2022-08-17T12:42:14Z

[ Upstream commit 6ac059dacffa8ab2f7798f20e4bd3333890c541c ] of_find_node_by_path() returns remote device nodepointer with refcount incremented, we should use of_node_put() on it when done. Add missing of_node_put() to avoid refcount leak. Fixes: 0afacde3df4c ("[POWERPC] spufs: allow isolated mode apps by starting the SPE loader") Signed-off-by: Miaoqian Lin Acked-by: Arnd Bergmann Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20220603121543.22884-1-linmq006@gmail.com Signed-off-by: Sasha Levin

powerpc: fix typos in comments

2022-08-17T12:42:11Z

[ Upstream commit 1fd02f6605b855b4af2883f29a2abc88bdf17857 ] Various spelling mistakes in comments. Detected with the help of Coccinelle. Signed-off-by: Julia Lawall Reviewed-by: Joel Stanley Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20220430185654.5855-1-Julia.Lawall@inria.fr Signed-off-by: Sasha Levin

powerpc: declare unmodified attribute_group usages const

2022-03-08T11:15:32Z

Inspired by (bd75b4ef4977: Constify static attribute_group structs), accepted by linux-next, reported: https://patchwork.ozlabs.org/project/linuxppc-dev/patch/20220210202805.7750-4-rikard.falkeborn@gmail.com/ Nearly all singletons of type struct attribute_group are never modified, and so are candidates for being const. Declare them as const. Signed-off-by: Rohan McLure Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20220307231414.86560-1-rmclure@linux.ibm.com

powerpc/spufs: Fix build warning when CONFIG_PROC_FS=n

2022-03-08T11:07:41Z

arch/powerpc/platforms/cell/spufs/sched.c:1055:12: warning: ‘show_spu_loadavg’ defined but not used [-Wunused-function] static int show_spu_loadavg(struct seq_file *s, void *private) ^~~~~~~~~~~~~~~~ Move it into #ifdef block to fix this, also remove unneeded semicolon. Signed-off-by: YueHaibing Reviewed-by: Christophe Leroy Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20220308100928.23540-1-yuehaibing@huawei.com

powerpc/spufs: adjust list element pointer type

2022-02-03T10:40:32Z

Other uses of &gang->aff_list_head, eg in spufs_assert_affinity, indicate that the list elements have type spu_context, not spu as used here. Change the type of tmp accordingly. This has no impact on the execution, because tmp is not used in the body of the loop. Fixes: c5fc8d2a92461 ("[CELL] cell: add placement computation for scheduling of affinity contexts") Signed-off-by: Julia Lawall Reviewed-by: Jeremy Kerr Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/1588929176-28527-1-git-send-email-Julia.Lawall@inria.fr

Merge tag 'powerpc-5.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

2022-01-14T14:17:26Z

Pull powerpc updates from Michael Ellerman: - Optimise radix KVM guest entry/exit by 2x on Power9/Power10. - Allow firmware to tell us whether to disable the entry and uaccess flushes on Power10 or later CPUs. - Add BPF_PROBE_MEM support for 32 and 64-bit BPF jits. - Several fixes and improvements to our hard lockup watchdog. - Activate HAVE_DYNAMIC_FTRACE_WITH_REGS on 32-bit. - Allow building the 64-bit Book3S kernel without hash MMU support, ie. Radix only. - Add KUAP (SMAP) support for 40x, 44x, 8xx, Book3E (64-bit). - Add new encodings for perf_mem_data_src.mem_hops field, and use them on Power10. - A series of small performance improvements to 64-bit interrupt entry. - Several commits fixing issues when building with the clang integrated assembler. - Many other small features and fixes. Thanks to Alan Modra, Alexey Kardashevskiy, Ammar Faizi, Anders Roxell, Arnd Bergmann, Athira Rajeev, Cédric Le Goater, Christophe JAILLET, Christophe Leroy, Christoph Hellwig, Daniel Axtens, David Yang, Erhard Furtner, Fabiano Rosas, Greg Kroah-Hartman, Guo Ren, Hari Bathini, Jason Wang, Joel Stanley, Julia Lawall, Kajol Jain, Kees Cook, Laurent Dufour, Madhavan Srinivasan, Mark Brown, Minghao Chi, Nageswara R Sastry, Naresh Kamboju, Nathan Chancellor, Nathan Lynch, Nicholas Piggin, Nick Child, Oliver O'Halloran, Peiwei Hu, Randy Dunlap, Ravi Bangoria, Rob Herring, Russell Currey, Sachin Sant, Sean Christopherson, Segher Boessenkool, Thadeu Lima de Souza Cascardo, Tyrel Datwyler, Xiang wangx, and Yang Guang. * tag 'powerpc-5.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (240 commits) powerpc/xmon: Dump XIVE information for online-only processors. powerpc/opal: use default_groups in kobj_type powerpc/cacheinfo: use default_groups in kobj_type powerpc/sched: Remove unused TASK_SIZE_OF powerpc/xive: Add missing null check after calling kmalloc powerpc/floppy: Remove usage of the deprecated "pci-dma-compat.h" API selftests/powerpc: Add a test of sigreturning to an unaligned address powerpc/64s: Use EMIT_WARN_ENTRY for SRR debug warnings powerpc/64s: Mask NIP before checking against SRR0 powerpc/perf: Fix spelling of "its" powerpc/32: Fix boot failure with GCC latent entropy plugin powerpc/code-patching: Replace patch_instruction() by ppc_inst_write() in selftests powerpc/code-patching: Move code patching selftests in its own file powerpc/code-patching: Move instr_is_branch_{i/b}form() in code-patching.h powerpc/code-patching: Move patch_exception() outside code-patching.c powerpc/code-patching: Use test_trampoline for prefixed patch test powerpc/code-patching: Fix patch_branch() return on out-of-range failure powerpc/code-patching: Reorganise do_patch_instruction() to ease error handling powerpc/code-patching: Fix unmap_patch_area() error handling powerpc/code-patching: Fix error handling in do_patch_instruction() ...

powerpc/cell: Add __init attribute to eligible functions

2021-12-23T11:33:13Z

Some functions defined in 'arch/powerpc/platforms/cell' are deserving of an `__init` macro attribute. These functions are only called by other initialization functions and therefore should inherit the attribute. Signed-off-by: Nick Child Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20211216220035.605465-8-nick.child@ibm.com

powerpc/cell/axon_msi: Convert to msi_on_each_desc()

2021-12-16T21:22:18Z

Replace the about to vanish iterators and make use of the filtering. Signed-off-by: Thomas Gleixner Reviewed-by: Jason Gunthorpe Link: https://lore.kernel.org/r/20211206210748.414712173@linutronix.de

powerpc/cell/axon_msi: Use PCI device property

2021-12-16T21:16:38Z

instead of fiddling with MSI descriptors. Signed-off-by: Thomas Gleixner Reviewed-by: Jason Gunthorpe Acked-by: Arnd Bergmann Link: https://lore.kernel.org/r/20211210221813.493922179@linutronix.de