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2023-03-11mips: fix syscall_get_nrElvira Khabirova
commit 85cc91e2ba4262a602ec65e2b76c4391a9e60d3d upstream. The implementation of syscall_get_nr on mips used to ignore the task argument and return the syscall number of the calling thread instead of the target thread. The bug was exposed to user space by commit 201766a20e30f ("ptrace: add PTRACE_GET_SYSCALL_INFO request") and detected by strace test suite. Link: https://github.com/strace/strace/issues/235 Fixes: c2d9f1775731 ("MIPS: Fix syscall_get_nr for the syscall exit tracing.") Cc: <stable@vger.kernel.org> # v3.19+ Co-developed-by: Dmitry V. Levin <ldv@strace.io> Signed-off-by: Dmitry V. Levin <ldv@strace.io> Signed-off-by: Elvira Khabirova <lineprinter0@gmail.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-03-11MIPS: vpe-mt: drop physical_memsizeRandy Dunlap
[ Upstream commit 91dc288f4edf0d768e46c2c6d33e0ab703403459 ] When neither LANTIQ nor MIPS_MALTA is set, 'physical_memsize' is not declared. This causes the build to fail with: mips-linux-ld: arch/mips/kernel/vpe-mt.o: in function `vpe_run': arch/mips/kernel/vpe-mt.c:(.text.vpe_run+0x280): undefined reference to `physical_memsize' LANTIQ is not using 'physical_memsize' and MIPS_MALTA's use of it is self-contained in mti-malta/malta-dtshim.c. Use of physical_memsize in vpe-mt.c appears to be unused, so eliminate this loader mode completely and require VPE programs to be compiled with DFLT_STACK_SIZE and DFLT_HEAP_SIZE defined. Fixes: 9050d50e2244 ("MIPS: lantiq: Set physical_memsize") Fixes: 1a2a6d7e8816 ("MIPS: APRP: Split VPE loader into separate files.") Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Reported-by: kernel test robot <lkp@intel.com> Link: https://lore.kernel.org/all/202302030625.2g3E98sY-lkp@intel.com/ Cc: Dengcheng Zhu <dzhu@wavecomp.com> Cc: John Crispin <john@phrozen.org> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: Philippe Mathieu-Daudé <philmd@linaro.org> Cc: "Steven J. Hill" <Steven.Hill@imgtec.com> Cc: Qais Yousef <Qais.Yousef@imgtec.com> Cc: Yang Yingliang <yangyingliang@huawei.com> Cc: Hauke Mehrtens <hauke@hauke-m.de> Cc: James Hogan <jhogan@kernel.org> Cc: linux-mips@vger.kernel.org Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-11MIPS: SMP-CPS: fix build error when HOTPLUG_CPU not setRandy Dunlap
[ Upstream commit 6f02e39fa40f16c24e7a5c599a854c0d1682788d ] When MIPS_CPS=y, MIPS_CPS_PM is not set, HOTPLUG_CPU is not set, and KEXEC=y, cps_shutdown_this_cpu() attempts to call cps_pm_enter_state(), which is not built when MIPS_CPS_PM is not set. Conditionally execute the else branch based on CONFIG_HOTPLUG_CPU to remove the build error. This build failure is from a randconfig file. mips-linux-ld: arch/mips/kernel/smp-cps.o: in function `$L162': smp-cps.c:(.text.cps_kexec_nonboot_cpu+0x31c): undefined reference to `cps_pm_enter_state' Fixes: 1447864bee4c ("MIPS: kexec: CPS systems to halt nonboot CPUs") Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Dengcheng Zhu <dzhu@wavecomp.com> Cc: Paul Burton <paulburton@kernel.org> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: linux-mips@vger.kernel.org Cc: Sergei Shtylyov <sergei.shtylyov@gmail.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-02-01Merge tag 'v5.10.166' into v5.10/standard/baseBruce Ashfield
This is the 5.10.166 stable release # -----BEGIN PGP SIGNATURE----- # # iQIzBAABCAAdFiEEZH8oZUiU471FcZm+ONu9yGCSaT4FAmPaE3kACgkQONu9yGCS # aT6I0g//TfjlIkRNgBNswIhxnBn/zilIJVzAjSQppyszObrjNVD/fi1m/XyKFZf2 # 5l6h/7RQtbJ3BxpPOaEGqS8DHelTUyq7DM/DrQLhGB63MDuf1zTje3KQytq6+vps # yWJRmNu0NpG0StRNCsnOOXNbfUp6h6YgpBIMPOemkdm1FOs5eT1FSzzKuQ/qTGeA # zQ8pERrAu2vAUWpblOTDv2ZDxppe78aUArmfMcJmmuqgF0bMKkAtvcUsnNyaM5cj # CGcPFmo3qouOht3VUHeDpljfJT3bcH/vd5oJ+SwmlO05CUj6oDHfadD1pSoDcHw5 # Gs+2i0sK/qZW0sTq8dlxf18O9RcBcU0S2lQJhmHByADaku0/U7Ub+Dal5C7ZZv7u # XmEw7YVJ4LJ4qVwVVKcGxZUGkwqX8e1gdBHxSgvDfM/dY1uarrUJW85pCRHlCxhw # oo2PpizL2876Z8fPQA0D6svsUolmKAEdhz0zsynnOmnL/02DKmoaoO5JyDg23Tlj # OsmnlDYRYCFRigbalhNcCsdKBMIeLbj+AQpiFxkVr9F0iWZngNsFmGljUimoxLTl # Ty/BVD1yttC8+g2mCPht1HpcdvJJA7PatW1+/JRp++fOojbyQglz8gvTqaXXa07X # EKtDwOW7r8z8RqcvLG/qLb5u9Po5p7+iA9YguhZrapdFu7rB/0E= # =I79Q # -----END PGP SIGNATURE----- # gpg: Signature made Wed 01 Feb 2023 02:23:37 AM EST # gpg: using RSA key 647F28654894E3BD457199BE38DBBDC86092693E # gpg: Can't check signature: No public key
2023-02-01exit: Add and use make_task_dead.Eric W. Biederman
commit 0e25498f8cd43c1b5aa327f373dd094e9a006da7 upstream. There are two big uses of do_exit. The first is it's design use to be the guts of the exit(2) system call. The second use is to terminate a task after something catastrophic has happened like a NULL pointer in kernel code. Add a function make_task_dead that is initialy exactly the same as do_exit to cover the cases where do_exit is called to handle catastrophic failure. In time this can probably be reduced to just a light wrapper around do_task_dead. For now keep it exactly the same so that there will be no behavioral differences introducing this new concept. Replace all of the uses of do_exit that use it for catastraphic task cleanup with make_task_dead to make it clear what the code is doing. As part of this rename rewind_stack_do_exit rewind_stack_and_make_dead. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-25Merge tag 'v5.10.163' into v5.10/standard/baseBruce Ashfield
This is the 5.10.163 stable release # -----BEGIN PGP SIGNATURE----- # # iQIzBAABCAAdFiEEZH8oZUiU471FcZm+ONu9yGCSaT4FAmPCczkACgkQONu9yGCS # aT4tnRAAsW8h/ohmhP+O2lQ9Ekw6s9VB6KB4aJzLhQXqIZlrzk2DP3CiLxQ7DkFc # AcHwFYq+sERo8O7dK6pbCW0zNvLUpbK2wJhwMHujJfSUFboXX85NR6u90U67pBKS # p+yVkDSx8LNc7c676xQ7ey5rO1K2fQQ266gexjI9WOkjIFOfplVkZ7tkvt51VwAD # mNvOQsZdCE6xs+T3t9YMOtAx3wW8vl1wW3QDWCHznQwOJiMEjfNEOUY/+xELnnWz # DVONWPHTFNKQHZwIuVUFZdNuORq5WXoIaMZdaEFkhuOtRMnQ9l+wi8iMxX8zkgBn # Ji/dPu3GdAZsJU4/rXHkY2AeZV1oJc3NLYmevoRZirTqMQCqyM+blif7Rf34kBi7 # 6jlGPWOjyMNe58shfHmjWTl/u4pMDoYOnm5XO+1oL+2Xg8QWCucqAlfPFB3uMh6n # aL4ymzo5QRy1+tx8v7o1NOjnGWydvYn3O4fwJVkYTFaJZZr9EI7gpTmEBw/gwfuf # 4TH6BC++Ai/8vgKUhpdnWuTrjomWalPTcPBgQYG4gD7ak2TM1rmgMaCl/THUe36R # zPC8m2sIXKeI4zGi8TeqTgaRvFSKJnuEmVo5OPkG98fZkjekCzWHp0q1+PG2Ecy8 # Mu2/AOnwb1aSfOJh2Qajoke/Wed0U6qszop8C/jPRh8D1uTmRbI= # =sOTj # -----END PGP SIGNATURE----- # gpg: Signature made Sat 14 Jan 2023 04:17:45 AM EST # gpg: using RSA key 647F28654894E3BD457199BE38DBBDC86092693E # gpg: Can't check signature: No public key
2023-01-14MIPS: OCTEON: warn only once if deprecated link status is being usedLadislav Michl
[ Upstream commit 4c587a982603d7e7e751b4925809a1512099a690 ] Avoid flooding kernel log with warnings. Fixes: 2c0756d306c2 ("MIPS: OCTEON: warn if deprecated link status is being used") Signed-off-by: Ladislav Michl <ladis@linux-mips.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-14MIPS: BCM63xx: Add check for NULL for clk in clk_enableAnastasia Belova
[ Upstream commit ee9ef11bd2a59c2fefaa0959e5efcdf040d7c654 ] Check clk for NULL before calling clk_enable_unlocked where clk is dereferenced. There is such check in other implementations of clk_enable. Found by Linux Verification Center (linuxtesting.org) with SVACE. Fixes: e7300d04bd08 ("MIPS: BCM63xx: Add support for the Broadcom BCM63xx family of SOCs.") Signed-off-by: Anastasia Belova <abelova@astralinux.ru> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-14MIPS: vpe-cmp: fix possible memory leak while module exitingYang Yingliang
[ Upstream commit c5ed1fe0801f0c66b0fbce2785239a5664629057 ] dev_set_name() allocates memory for name, it need be freed when module exiting, call put_device() to give up reference, so that it can be freed in kobject_cleanup() when the refcount hit to 0. The vpe_device is static, so remove kfree() from vpe_device_release(). Fixes: 17a1d523aa58 ("MIPS: APRP: Add VPE loader support for CMP platforms.") Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-14MIPS: vpe-mt: fix possible memory leak while module exitingYang Yingliang
[ Upstream commit 5822e8cc84ee37338ab0bdc3124f6eec04dc232d ] Afer commit 1fa5ae857bb1 ("driver core: get rid of struct device's bus_id string array"), the name of device is allocated dynamically, it need be freed when module exiting, call put_device() to give up reference, so that it can be freed in kobject_cleanup() when the refcount hit to 0. The vpe_device is static, so remove kfree() from vpe_device_release(). Fixes: 1fa5ae857bb1 ("driver core: get rid of struct device's bus_id string array") Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-04Merge tag 'v5.10.162' into v5.10/standard/baseBruce Ashfield
This is the 5.10.162 stable release # gpg: Signature made Wed 04 Jan 2023 05:39:31 AM EST # gpg: using RSA key 647F28654894E3BD457199BE38DBBDC86092693E # gpg: Can't check signature: No public key
2023-01-04arch: setup PF_IO_WORKER threads like PF_KTHREADJens Axboe
[ Upstream commit 4727dc20e0422211a0e0c72b1ace4ed6096df8a6 ] PF_IO_WORKER are kernel threads too, but they aren't PF_KTHREAD in the sense that we don't assign ->set_child_tid with our own structure. Just ensure that every arch sets up the PF_IO_WORKER threads like kthreads in the arch implementation of copy_thread(). Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-01-04mips: add support for TIF_NOTIFY_SIGNALJens Axboe
[ Upstream commit f45c184bce15f4a314c0210519bc3b4aab408838 ] Wire up TIF_NOTIFY_SIGNAL handling for mips. Cc: linux-mips@vger.kernel.org Acked-By: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-12-19Merge tag 'v5.10.157' into v5.10/standard/baseBruce Ashfield
This is the 5.10.157 stable release # gpg: Signature made Fri 02 Dec 2022 11:40:11 AM EST # gpg: using RSA key 647F28654894E3BD457199BE38DBBDC86092693E # gpg: Can't check signature: No public key
2022-12-19Merge tag 'v5.10.155' into v5.10/standard/baseBruce Ashfield
This is the 5.10.155 stable release # gpg: Signature made Wed 16 Nov 2022 03:57:24 AM EST # gpg: using RSA key 647F28654894E3BD457199BE38DBBDC86092693E # gpg: Can't check signature: No public key
2022-12-02MIPS: pic32: treat port as signed integerJason A. Donenfeld
[ Upstream commit 648060902aa302331b5d6e4f26d8ee0761d239ab ] get_port_from_cmdline() returns an int, yet is assigned to a char, which is wrong in its own right, but also, with char becoming unsigned, this poses problems, because -1 is used as an error value. Further complicating things, fw_init_early_console() is only ever called with a -1 argument. Fix this up by removing the unused argument from fw_init_early_console() and treating port as a proper signed integer. Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-11-16MIPS: jump_label: Fix compat branch range checkJiaxun Yang
commit 64ac0befe75bdfaffc396c2b4a0ed5ae6920eeee upstream. Cast upper bound of branch range to long to do signed compare, avoid negative offset trigger this warning. Fixes: 9b6584e35f40 ("MIPS: jump_label: Use compact branches for >= r6") Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Cc: stable@vger.kernel.org Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-31Merge tag 'v5.10.150' into v5.10/standard/baseBruce Ashfield
This is the 5.10.150 stable release Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com> # gpg: Signature made Wed 26 Oct 2022 07:27:43 AM EDT # gpg: using RSA key 647F28654894E3BD457199BE38DBBDC86092693E # gpg: Can't check signature: No public key # Conflicts: # drivers/iio/adc/ltc2497.c
2022-10-26MIPS: BCM47XX: Cast memcmp() of function to (void *)Kees Cook
[ Upstream commit 0dedcf6e3301836eb70cfa649052e7ce4fcd13ba ] Clang is especially sensitive about argument type matching when using __overloaded functions (like memcmp(), etc). Help it see that function pointers are just "void *". Avoids this error: arch/mips/bcm47xx/prom.c:89:8: error: no matching function for call to 'memcmp' if (!memcmp(prom_init, prom_init + mem, 32)) ^~~~~~ include/linux/string.h:156:12: note: candidate function not viable: no known conversion from 'void (void)' to 'const void *' for 1st argument extern int memcmp(const void *,const void *,__kernel_size_t); Cc: Hauke Mehrtens <hauke@hauke-m.de> Cc: "Rafał Miłecki" <zajec5@gmail.com> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: linux-mips@vger.kernel.org Cc: Nathan Chancellor <nathan@kernel.org> Cc: Nick Desaulniers <ndesaulniers@google.com> Cc: llvm@lists.linux.dev Reported-by: kernel test robot <lkp@intel.com> Link: https://lore.kernel.org/lkml/202209080652.sz2d68e5-lkp@intel.com Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-10-26MIPS: SGI-IP27: Fix platform-device leak in bridge_platform_create()Lin Yujun
[ Upstream commit 11bec9cba4de06b3c0e9e4041453c2caaa1cbec1 ] In error case in bridge_platform_create after calling platform_device_add()/platform_device_add_data()/ platform_device_add_resources(), release the failed 'pdev' or it will be leak, call platform_device_put() to fix this problem. Besides, 'pdev' is divided into 'pdev_wd' and 'pdev_bd', use platform_device_unregister() to release sgi_w1 resources when xtalk-bridge registration fails. Fixes: 5dc76a96e95a ("MIPS: PCI: use information from 1-wire PROM for IOC3 detection") Signed-off-by: Lin Yujun <linyujun809@huawei.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-10-26MIPS: SGI-IP27: Free some unused memoryChristophe JAILLET
[ Upstream commit 33d7085682b4aa212ebfadbc21da81dfefaaac16 ] platform_device_add_data() duplicates the memory it is passed. So we can free some memory to save a few bytes that would remain unused otherwise. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Stable-dep-of: 11bec9cba4de ("MIPS: SGI-IP27: Fix platform-device leak in bridge_platform_create()") Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-10-08Merge tag 'v5.10.146' into v5.10/standard/baseBruce Ashfield
This is the 5.10.146 stable release # gpg: Signature made Wed 28 Sep 2022 05:10:46 AM EDT # gpg: using RSA key 647F28654894E3BD457199BE38DBBDC86092693E # gpg: Can't check signature: No public key
2022-10-08Merge tag 'v5.10.145' into v5.10/standard/baseBruce Ashfield
This is the 5.10.145 stable release # gpg: Signature made Fri 23 Sep 2022 08:17:38 AM EDT # gpg: using RSA key 647F28654894E3BD457199BE38DBBDC86092693E # gpg: Can't check signature: No public key
2022-09-28MIPS: Loongson32: Fix PHY-mode being left unspecifiedSerge Semin
[ Upstream commit e9f3f8f488005f6da3cfb66070706770ecaef747 ] commit 0060c8783330 ("net: stmmac: implement support for passive mode converters via dt") has changed the plat->interface field semantics from containing the PHY-mode to specifying the MAC-PCS interface mode. Due to that the loongson32 platform code will leave the phylink interface uninitialized with the PHY-mode intended by the means of the actual platform setup. The commit-author most likely has just missed the arch-specific code to fix. Let's mend the Loongson32 platform code then by assigning the PHY-mode to the phy_interface field of the STMMAC platform data. Fixes: 0060c8783330 ("net: stmmac: implement support for passive mode converters via dt") Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru> Signed-off-by: Keguang Zhang <keguang.zhang@gmail.com> Tested-by: Keguang Zhang <keguang.zhang@gmail.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-09-28MIPS: lantiq: export clk_get_io() for lantiq_wdt.koRandy Dunlap
[ Upstream commit 502550123bee6a2ffa438409b5b9aad4d6db3a8c ] The lantiq WDT driver uses clk_get_io(), which is not exported, so export it to fix a build error: ERROR: modpost: "clk_get_io" [drivers/watchdog/lantiq_wdt.ko] undefined! Fixes: 287e3f3f4e68 ("MIPS: lantiq: implement support for clkdev api") Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Reported-by: kernel test robot <lkp@intel.com> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: John Crispin <john@phrozen.org> Cc: linux-mips@vger.kernel.org Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-09-23MIPS: OCTEON: irq: Fix octeon_irq_force_ciu_mapping()Alexander Sverdlin
[ Upstream commit ba912afbd611d3a5f22af247721a071ad1d5b9e0 ] For irq_domain_associate() to work the virq descriptor has to be pre-allocated in advance. Otherwise the following happens: WARNING: CPU: 0 PID: 0 at .../kernel/irq/irqdomain.c:527 irq_domain_associate+0x298/0x2e8 error: virq128 is not allocated Modules linked in: CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.19.78-... #1 ... Call Trace: [<ffffffff801344c4>] show_stack+0x9c/0x130 [<ffffffff80769550>] dump_stack+0x90/0xd0 [<ffffffff801576d0>] __warn+0x118/0x130 [<ffffffff80157734>] warn_slowpath_fmt+0x4c/0x70 [<ffffffff801b83c0>] irq_domain_associate+0x298/0x2e8 [<ffffffff80a43bb8>] octeon_irq_init_ciu+0x4c8/0x53c [<ffffffff80a76cbc>] of_irq_init+0x1e0/0x388 [<ffffffff80a452cc>] init_IRQ+0x4c/0xf4 [<ffffffff80a3cc00>] start_kernel+0x404/0x698 Use irq_alloc_desc_at() to avoid the above problem. Signed-off-by: Alexander Sverdlin <alexander.sverdlin@nokia.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-09-19Merge tag 'v5.10.143' into v5.10/standard/baseBruce Ashfield
This is the 5.10.143 stable release # gpg: Signature made Thu 15 Sep 2022 05:32:18 AM EDT # gpg: using RSA key 647F28654894E3BD457199BE38DBBDC86092693E # gpg: Can't check signature: No public key
2022-09-15MIPS: loongson32: ls1c: Fix hang during startupYang Ling
[ Upstream commit 35508d2424097f9b6a1a17aac94f702767035616 ] The RTCCTRL reg of LS1C is obselete. Writing this reg will cause system hang. Fixes: 60219c563c9b6 ("MIPS: Add RTC support for Loongson1C board") Signed-off-by: Yang Ling <gnaygnil@gmail.com> Tested-by: Keguang Zhang <keguang.zhang@gmail.com> Acked-by: Keguang Zhang <keguang.zhang@gmail.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-09-09Merge tag 'v5.10.138' into v5.10/standard/baseBruce Ashfield
This is the 5.10.138 stable release # gpg: Signature made Thu 25 Aug 2022 05:38:30 AM EDT # gpg: using RSA key 647F28654894E3BD457199BE38DBBDC86092693E # gpg: Can't check signature: No public key
2022-08-25MIPS: tlbex: Explicitly compare _PAGE_NO_EXEC against 0Nathan Chancellor
[ Upstream commit 74de14fe05dd6b151d73cb0c73c8ec874cbdcde6 ] When CONFIG_XPA is enabled, Clang warns: arch/mips/mm/tlbex.c:629:24: error: converting the result of '<<' to a boolean; did you mean '(1 << _PAGE_NO_EXEC_SHIFT) != 0'? [-Werror,-Wint-in-bool-context] if (cpu_has_rixi && !!_PAGE_NO_EXEC) { ^ arch/mips/include/asm/pgtable-bits.h:174:28: note: expanded from macro '_PAGE_NO_EXEC' # define _PAGE_NO_EXEC (1 << _PAGE_NO_EXEC_SHIFT) ^ arch/mips/mm/tlbex.c:2568:24: error: converting the result of '<<' to a boolean; did you mean '(1 << _PAGE_NO_EXEC_SHIFT) != 0'? [-Werror,-Wint-in-bool-context] if (!cpu_has_rixi || !_PAGE_NO_EXEC) { ^ arch/mips/include/asm/pgtable-bits.h:174:28: note: expanded from macro '_PAGE_NO_EXEC' # define _PAGE_NO_EXEC (1 << _PAGE_NO_EXEC_SHIFT) ^ 2 errors generated. _PAGE_NO_EXEC can be '0' or '1 << _PAGE_NO_EXEC_SHIFT' depending on the build and runtime configuration, which is what the negation operators are trying to convey. To silence the warning, explicitly compare against 0 so the result of the '<<' operator is not implicitly converted to a boolean. According to its documentation, GCC enables -Wint-in-bool-context with -Wall but this warning is not visible when building the same configuration with GCC. It appears GCC only warns when compiling C++, not C, although the documentation makes no note of this: https://godbolt.org/z/x39q3brxf Reported-by: Sudip Mukherjee (Codethink) <sudipm.mukherjee@gmail.com> Signed-off-by: Nathan Chancellor <nathan@kernel.org> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-25mips: cavium-octeon: Fix missing of_node_put() in octeon2_usb_clocks_startLiang He
[ Upstream commit 7a9f743ceead60ed454c46fbc3085ee9a79cbebb ] We should call of_node_put() for the reference 'uctl_node' returned by of_get_parent() which will increase the refcount. Otherwise, there will be a refcount leak bug. Signed-off-by: Liang He <windhl@126.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-08-22Merge tag 'v5.10.137' into v5.10/standard/baseBruce Ashfield
This is the 5.10.137 stable release # gpg: Signature made Sun 21 Aug 2022 09:16:36 AM EDT # gpg: using RSA key 647F28654894E3BD457199BE38DBBDC86092693E # gpg: Can't check signature: No public key
2022-08-21MIPS: cpuinfo: Fix a warning for CONFIG_CPUMASK_OFFSTACKHuacai Chen
commit e1a534f5d074db45ae5cbac41d8912b98e96a006 upstream. When CONFIG_CPUMASK_OFFSTACK and CONFIG_DEBUG_PER_CPU_MAPS is selected, cpu_max_bits_warn() generates a runtime warning similar as below while we show /proc/cpuinfo. Fix this by using nr_cpu_ids (the runtime limit) instead of NR_CPUS to iterate CPUs. [ 3.052463] ------------[ cut here ]------------ [ 3.059679] WARNING: CPU: 3 PID: 1 at include/linux/cpumask.h:108 show_cpuinfo+0x5e8/0x5f0 [ 3.070072] Modules linked in: efivarfs autofs4 [ 3.076257] CPU: 0 PID: 1 Comm: systemd Not tainted 5.19-rc5+ #1052 [ 3.084034] Hardware name: Loongson Loongson-3A4000-7A1000-1w-V0.1-CRB/Loongson-LS3A4000-7A1000-1w-EVB-V1.21, BIOS Loongson-UDK2018-V2.0.04082-beta7 04/27 [ 3.099465] Stack : 9000000100157b08 9000000000f18530 9000000000cf846c 9000000100154000 [ 3.109127] 9000000100157a50 0000000000000000 9000000100157a58 9000000000ef7430 [ 3.118774] 90000001001578e8 0000000000000040 0000000000000020 ffffffffffffffff [ 3.128412] 0000000000aaaaaa 1ab25f00eec96a37 900000010021de80 900000000101c890 [ 3.138056] 0000000000000000 0000000000000000 0000000000000000 0000000000aaaaaa [ 3.147711] ffff8000339dc220 0000000000000001 0000000006ab4000 0000000000000000 [ 3.157364] 900000000101c998 0000000000000004 9000000000ef7430 0000000000000000 [ 3.167012] 0000000000000009 000000000000006c 0000000000000000 0000000000000000 [ 3.176641] 9000000000d3de08 9000000001639390 90000000002086d8 00007ffff0080286 [ 3.186260] 00000000000000b0 0000000000000004 0000000000000000 0000000000071c1c [ 3.195868] ... [ 3.199917] Call Trace: [ 3.203941] [<98000000002086d8>] show_stack+0x38/0x14c [ 3.210666] [<9800000000cf846c>] dump_stack_lvl+0x60/0x88 [ 3.217625] [<980000000023d268>] __warn+0xd0/0x100 [ 3.223958] [<9800000000cf3c90>] warn_slowpath_fmt+0x7c/0xcc [ 3.231150] [<9800000000210220>] show_cpuinfo+0x5e8/0x5f0 [ 3.238080] [<98000000004f578c>] seq_read_iter+0x354/0x4b4 [ 3.245098] [<98000000004c2e90>] new_sync_read+0x17c/0x1c4 [ 3.252114] [<98000000004c5174>] vfs_read+0x138/0x1d0 [ 3.258694] [<98000000004c55f8>] ksys_read+0x70/0x100 [ 3.265265] [<9800000000cfde9c>] do_syscall+0x7c/0x94 [ 3.271820] [<9800000000202fe4>] handle_syscall+0xc4/0x160 [ 3.281824] ---[ end trace 8b484262b4b8c24c ]--- Cc: stable@vger.kernel.org Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-07-05Merge tag 'v5.10.127' into v5.10/standard/baseBruce Ashfield
This is the 5.10.127 stable release # gpg: Signature made Wed 29 Jun 2022 03:00:08 AM EDT # gpg: using RSA key 647F28654894E3BD457199BE38DBBDC86092693E # gpg: Can't check signature: No public key
2022-06-29MIPS: Remove repetitive increase irq_err_counthuhai
[ Upstream commit c81aba8fde2aee4f5778ebab3a1d51bd2ef48e4c ] commit 979934da9e7a ("[PATCH] mips: update IRQ handling for vr41xx") added a function irq_dispatch, and it'll increase irq_err_count when the get_irq callback returns a negative value, but increase irq_err_count in get_irq was not removed. And also, modpost complains once gpio-vr41xx drivers become modules. ERROR: modpost: "irq_err_count" [drivers/gpio/gpio-vr41xx.ko] undefined! So it would be a good idea to remove repetitive increase irq_err_count in get_irq callback. Fixes: 27fdd325dace ("MIPS: Update VR41xx GPIO driver to use gpiolib") Fixes: 979934da9e7a ("[PATCH] mips: update IRQ handling for vr41xx") Reported-by: k2ci <kernel-bot@kylinos.cn> Signed-off-by: huhai <huhai@kylinos.cn> Signed-off-by: Genjian Zhang <zhanggenjian@kylinos.cn> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-06-21Merge tag 'v5.10.122' into v5.10/standard/baseBruce Ashfield
This is the 5.10.122 stable release # gpg: Signature made Tue 14 Jun 2022 12:33:26 PM EDT # gpg: using RSA key 647F28654894E3BD457199BE38DBBDC86092693E # gpg: Can't check signature: No public key
2022-06-14mips: cpc: Fix refcount leak in mips_cpc_default_phys_baseGong Yuanjun
[ Upstream commit 4107fa700f314592850e2c64608f6ede4c077476 ] Add the missing of_node_put() to release the refcount incremented by of_find_compatible_node(). Signed-off-by: Gong Yuanjun <ruc_gongyuanjun@163.com> Reviewed-by: Serge Semin <fancer.lancer@gmail.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-06-14Merge tag 'v5.10.121' into v5.10/standard/baseBruce Ashfield
This is the 5.10.121 stable release # gpg: Signature made Thu 09 Jun 2022 04:21:38 AM EDT # gpg: using RSA key 647F28654894E3BD457199BE38DBBDC86092693E # gpg: Can't check signature: No public key
2022-06-09MIPS: IP30: Remove incorrect `cpu_has_fpu' overrideMaciej W. Rozycki
commit f44b3e74c33fe04defeff24ebcae98c3bcc5b285 upstream. Remove unsupported forcing of `cpu_has_fpu' to 1, which makes the `nofpu' kernel parameter non-functional, and also causes a link error: ld: arch/mips/kernel/traps.o: in function `trap_init': ./arch/mips/include/asm/msa.h:(.init.text+0x348): undefined reference to `handle_fpe' ld: ./arch/mips/include/asm/msa.h:(.init.text+0x354): undefined reference to `handle_fpe' ld: ./arch/mips/include/asm/msa.h:(.init.text+0x360): undefined reference to `handle_fpe' where the CONFIG_MIPS_FP_SUPPORT configuration option has been disabled. Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk> Reported-by: Stephen Zhang <starzhangzsd@gmail.com> Fixes: 7505576d1c1a ("MIPS: add support for SGI Octane (IP30)") Cc: stable@vger.kernel.org # v5.5+ Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-09MIPS: IP27: Remove incorrect `cpu_has_fpu' overrideMaciej W. Rozycki
commit 424c3781dd1cb401857585331eaaa425a13f2429 upstream. Remove unsupported forcing of `cpu_has_fpu' to 1, which makes the `nofpu' kernel parameter non-functional, and also causes a link error: ld: arch/mips/kernel/traps.o: in function `trap_init': ./arch/mips/include/asm/msa.h:(.init.text+0x348): undefined reference to `handle_fpe' ld: ./arch/mips/include/asm/msa.h:(.init.text+0x354): undefined reference to `handle_fpe' ld: ./arch/mips/include/asm/msa.h:(.init.text+0x360): undefined reference to `handle_fpe' where the CONFIG_MIPS_FP_SUPPORT configuration option has been disabled. Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk> Reported-by: Stephen Zhang <starzhangzsd@gmail.com> Fixes: 0ebb2f4159af ("MIPS: IP27: Update/restructure CPU overrides") Cc: stable@vger.kernel.org # v4.2+ Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-05-31Merge tag 'v5.10.119' into v5.10/standard/baseBruce Ashfield
This is the 5.10.119 stable release # gpg: Signature made Mon 30 May 2022 03:33:59 AM EDT # gpg: using RSA key 647F28654894E3BD457199BE38DBBDC86092693E # gpg: Can't check signature: No public key
2022-05-30mips: use fallback for random_get_entropy() instead of just c0 randomJason A. Donenfeld
commit 1c99c6a7c3c599a68321b01b9ec243215ede5a68 upstream. For situations in which we don't have a c0 counter register available, we've been falling back to reading the c0 "random" register, which is usually bounded by the amount of TLB entries and changes every other cycle or so. This means it wraps extremely often. We can do better by combining this fast-changing counter with a potentially slower-changing counter from random_get_entropy_fallback() in the more significant bits. This commit combines the two, taking into account that the changing bits are in a different bit position depending on the CPU model. In addition, we previously were falling back to 0 for ancient CPUs that Linux does not support anyway; remove that dead path entirely. Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Arnd Bergmann <arnd@arndb.de> Tested-by: Maciej W. Rozycki <macro@orcam.me.uk> Acked-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-05-25Merge tag 'v5.10.118' into v5.10/standard/baseBruce Ashfield
This is the 5.10.118 stable release # gpg: Signature made Wed 25 May 2022 03:18:12 AM EDT # gpg: using RSA key 647F28654894E3BD457199BE38DBBDC86092693E # gpg: Can't check signature: No public key
2022-05-25Merge tag 'v5.10.116' into v5.10/standard/baseBruce Ashfield
This is the 5.10.116 stable release # gpg: Signature made Sun 15 May 2022 02:00:18 PM EDT # gpg: using RSA key 647F28654894E3BD457199BE38DBBDC86092693E # gpg: Can't check signature: No public key
2022-05-25Merge tag 'v5.10.115' into v5.10/standard/baseBruce Ashfield
This is the 5.10.115 stable release # gpg: Signature made Thu 12 May 2022 06:27:51 AM EDT # gpg: using RSA key 647F28654894E3BD457199BE38DBBDC86092693E # gpg: Can't check signature: No public key
2022-05-25MIPS: lantiq: check the return value of kzalloc()Xiaoke Wang
[ Upstream commit 34123208bbcc8c884a0489f543a23fe9eebb5514 ] kzalloc() is a memory allocation function which can return NULL when some internal memory errors happen. So it is better to check the return value of it to prevent potential wrong memory access or memory leak. Signed-off-by: Xiaoke Wang <xkernel.wang@foxmail.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-05-15MIPS: Use address-of operator on section symbolsNathan Chancellor
commit d422c6c0644bccbb1ebeefffa51f35cec3019517 upstream. When building xway_defconfig with clang: arch/mips/lantiq/prom.c:82:23: error: array comparison always evaluates to true [-Werror,-Wtautological-compare] else if (__dtb_start != __dtb_end) ^ 1 error generated. These are not true arrays, they are linker defined symbols, which are just addresses. Using the address of operator silences the warning and does not change the resulting assembly with either clang/ld.lld or gcc/ld (tested with diff + objdump -Dr). Do the same thing across the entire MIPS subsystem to ensure there are no more warnings around this type of comparison. Link: https://github.com/ClangBuiltLinux/linux/issues/1232 Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-05-12MIPS: Fix CP0 counter erratum detection for R4k CPUsMaciej W. Rozycki
commit f0a6c68f69981214cb7858738dd2bc81475111f7 upstream. Fix the discrepancy between the two places we check for the CP0 counter erratum in along with the incorrect comparison of the R4400 revision number against 0x30 which matches none and consistently consider all R4000 and R4400 processors affected, as documented in processor errata publications[1][2][3], following the mapping between CP0 PRId register values and processor models: PRId | Processor Model ---------+-------------------- 00000422 | R4000 Revision 2.2 00000430 | R4000 Revision 3.0 00000440 | R4400 Revision 1.0 00000450 | R4400 Revision 2.0 00000460 | R4400 Revision 3.0 No other revision of either processor has ever been spotted. Contrary to what has been stated in commit ce202cbb9e0b ("[MIPS] Assume R4000/R4400 newer than 3.0 don't have the mfc0 count bug") marking the CP0 counter as buggy does not preclude it from being used as either a clock event or a clock source device. It just cannot be used as both at a time, because in that case clock event interrupts will be occasionally lost, and the use as a clock event device takes precedence. Compare against 0x4ff in `can_use_mips_counter' so that a single machine instruction is produced. References: [1] "MIPS R4000PC/SC Errata, Processor Revision 2.2 and 3.0", MIPS Technologies Inc., May 10, 1994, Erratum 53, p.13 [2] "MIPS R4400PC/SC Errata, Processor Revision 1.0", MIPS Technologies Inc., February 9, 1994, Erratum 21, p.4 [3] "MIPS R4400PC/SC Errata, Processor Revision 2.0 & 3.0", MIPS Technologies Inc., January 24, 1995, Erratum 14, p.3 Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk> Fixes: ce202cbb9e0b ("[MIPS] Assume R4000/R4400 newer than 3.0 don't have the mfc0 count bug") Cc: stable@vger.kernel.org # v2.6.24+ Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-04-20Merge tag 'v5.10.111' into v5.10/standard/baseBruce Ashfield
This is the 5.10.111 stable release # gpg: Signature made Wed 13 Apr 2022 03:01:25 PM EDT # gpg: using RSA key 647F28654894E3BD457199BE38DBBDC86092693E # gpg: Can't check signature: No public key
2022-04-13MIPS: ingenic: correct unit node addressKrzysztof Kozlowski
[ Upstream commit 8931ddd8d6a55fcefb20f44a38ba42bb746f0b62 ] Unit node addresses should not have leading 0x: Warning (unit_address_format): /nemc@13410000/efuse@d0/eth-mac-addr@0x22: unit name should not have leading "0x" Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Reviewed-by: Paul Cercueil <paul@crapouillou.net> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Sasha Levin <sashal@kernel.org>
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-06-19 21:57:00 +0000