kernel/git/stable/linux.git/arch/mips, branch linux-6.2.y

MIPS: fw: Allow firmware to pass a empty env

2023-05-11T14:10:51+00:00

commit ee1809ed7bc456a72dc8410b475b73021a3a68d5 upstream. fw_getenv will use env entry to determine style of env, however it is legal for firmware to just pass a empty list. Check if first entry exist before running strchr to avoid null pointer dereference. Cc: stable@vger.kernel.org Link: https://github.com/clbr/n64bootloader/issues/5 Signed-off-by: Jiaxun Yang Signed-off-by: Thomas Bogendoerfer Signed-off-by: Greg Kroah-Hartman

MIPS: Define RUNTIME_DISCARD_EXIT in LD script

2023-04-26T12:30:07+00:00

commit 6dcbd0a69c84a8ae7a442840a8cf6b1379dc8f16 upstream. MIPS's exit sections are discarded at runtime as well. Fixes link error: `.exit.text' referenced in section `__jump_table' of fs/fuse/inode.o: defined in discarded section `.exit.text' of fs/fuse/inode.o Fixes: 99cb0d917ffa ("arch: fix broken BuildID for arm64 and riscv") Reported-by: "kernelci.org bot" Signed-off-by: Jiaxun Yang Signed-off-by: Thomas Bogendoerfer Signed-off-by: Greg Kroah-Hartman

mips: bmips: BCM6358: disable RAC flush for TP1

2023-04-06T10:12:31+00:00

[ Upstream commit ab327f8acdf8d06601fbf058859a539a9422afff ] RAC flush causes kernel panics on BCM6358 with EHCI/OHCI when booting from TP1: [ 3.881739] usb 1-1: new high-speed USB device number 2 using ehci-platform [ 3.895011] Reserved instruction in kernel code[#1]: [ 3.900113] CPU: 0 PID: 1 Comm: init Not tainted 5.10.16 #0 [ 3.905829] $ 0 : 00000000 10008700 00000000 77d94060 [ 3.911238] $ 4 : 7fd1f088 00000000 81431cac 81431ca0 [ 3.916641] $ 8 : 00000000 ffffefff 8075cd34 00000000 [ 3.922043] $12 : 806f8d40 f3e812b7 00000000 000d9aaa [ 3.927446] $16 : 7fd1f068 7fd1f080 7ff559b8 81428470 [ 3.932848] $20 : 00000000 00000000 55590000 77d70000 [ 3.938251] $24 : 00000018 00000010 [ 3.943655] $28 : 81430000 81431e60 81431f28 800157fc [ 3.949058] Hi : 00000000 [ 3.952013] Lo : 00000000 [ 3.955019] epc : 80015808 setup_sigcontext+0x54/0x24c [ 3.960464] ra : 800157fc setup_sigcontext+0x48/0x24c [ 3.965913] Status: 10008703 KERNEL EXL IE [ 3.970216] Cause : 00800028 (ExcCode 0a) [ 3.974340] PrId : 0002a010 (Broadcom BMIPS4350) [ 3.979170] Modules linked in: ohci_platform ohci_hcd fsl_mph_dr_of ehci_platform ehci_fsl ehci_hcd gpio_button_hotplug usbcore nls_base usb_common [ 3.992907] Process init (pid: 1, threadinfo=(ptrval), task=(ptrval), tls=77e22ec8) [ 4.000776] Stack : 81431ef4 7fd1f080 81431f28 81428470 7fd1f068 81431edc 7ff559b8 81428470 [ 4.009467] 81431f28 7fd1f080 55590000 77d70000 77d5498c 80015c70 806f0000 8063ae74 [ 4.018149] 08100002 81431f28 0000000a 08100002 81431f28 0000000a 77d6b418 00000003 [ 4.026831] ffffffff 80016414 80080734 81431ecc 81431ecc 00000001 00000000 04000000 [ 4.035512] 77d54874 00000000 00000000 00000000 00000000 00000012 00000002 00000000 [ 4.044196] ... [ 4.046706] Call Trace: [ 4.049238] [<80015808>] setup_sigcontext+0x54/0x24c [ 4.054356] [<80015c70>] setup_frame+0xdc/0x124 [ 4.059015] [<80016414>] do_notify_resume+0x1dc/0x288 [ 4.064207] [<80011b50>] work_notifysig+0x10/0x18 [ 4.069036] [ 4.070538] Code: 8fc300b4 00001025 26240008 ac830004 3c048063 0c0228aa 24846a00 26240010 [ 4.080686] [ 4.082517] ---[ end trace 22a8edb41f5f983b ]--- [ 4.087374] Kernel panic - not syncing: Fatal exception [ 4.092753] Rebooting in 1 seconds.. Because the bootloader (CFE) is not initializing the Read-ahead cache properly on the second thread (TP1). Since the RAC was not initialized properly, we should avoid flushing it at the risk of corrupting the instruction stream as seen in the trace above. Fixes: d59098a0e9cb ("MIPS: bmips: use generic dma noncoherent ops") Signed-off-by: Álvaro Fernández Rojas Signed-off-by: Thomas Bogendoerfer Signed-off-by: Sasha Levin

MIPS: Fix a compilation issue

2023-03-17T07:58:01+00:00

[ Upstream commit 109d587a4b4d7ccca2200ab1f808f43ae23e2585 ] arch/mips/include/asm/mach-rc32434/pci.h:377: cc1: error: result of ‘-117440512 << 16’ requires 44 bits to represent, but ‘int’ only has 32 bits [-Werror=shift-overflow=] All bits in KORINA_STAT are already at the correct position, so there is no addtional shift needed. Signed-off-by: xurui Signed-off-by: Thomas Bogendoerfer Signed-off-by: Sasha Levin

eth: fealnx: bring back this old driver

2023-03-11T12:50:46+00:00

commit 8f14820801042c221bb9fe51643a2585cac5dec2 upstream. This reverts commit d5e2d038dbece821f1af57acbeded3aa9a1832c1. We have a report of this chip being used on a SURECOM EP-320X-S 100/10M Ethernet PCI Adapter which could still have been purchased in some parts of the world 3 years ago. Cc: stable@vger.kernel.org Link: https://bugzilla.kernel.org/show_bug.cgi?id=217151 Fixes: d5e2d038dbec ("eth: fealnx: delete the driver for Myson MTD-800") Link: https://lore.kernel.org/r/20230307171930.4008454-1-kuba@kernel.org Signed-off-by: Jakub Kicinski Signed-off-by: Greg Kroah-Hartman

MIPS: DTS: CI20: fix otg power gpio

2023-03-10T08:29:53+00:00

commit 0cb4228f6cc9ed0ca2be0d9ddf29168a8e3a3905 upstream. According to schematics it is PF15 and not PF14 (MIC_SW_EN). Seems as if it was hidden and not noticed during testing since there is no sound DT node. Fixes: 158c774d3c64 ("MIPS: Ingenic: Add missing nodes for Ingenic SoCs and boards.") Cc: stable@vger.kernel.org Signed-off-by: H. Nikolaus Schaller Acked-by: Paul Cercueil Signed-off-by: Thomas Bogendoerfer Signed-off-by: Greg Kroah-Hartman

mips: fix syscall_get_nr

2023-03-10T08:29:48+00:00

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: # v3.19+ Co-developed-by: Dmitry V. Levin Signed-off-by: Dmitry V. Levin Signed-off-by: Elvira Khabirova Signed-off-by: Thomas Bogendoerfer Signed-off-by: Greg Kroah-Hartman

of/fdt: run soc memory setup when early_init_dt_scan_memory fails

2023-01-04T00:41:01+00:00

If memory has been found early_init_dt_scan_memory now returns 1. If it hasn't found any memory it will return 0, allowing other memory setup mechanisms to carry on. Previously early_init_dt_scan_memory always returned 0 without distinguishing between any kind of memory setup being done or not. Any code path after the early_init_dt_scan memory call in the ramips plat_mem_setup code wouldn't be executed anymore. Making early_init_dt_scan_memory the only way to initialize the memory. Some boards, including my mt7621 based Cudy X6 board, depend on memory initialization being done via the soc_info.mem_detect function pointer. Those wouldn't be able to obtain memory and panic the kernel during early bootup with the message "early_init_dt_alloc_memory_arch: Failed to allocate 12416 bytes align=0x40". Fixes: 1f012283e936 ("of/fdt: Rework early_init_dt_scan_memory() to call directly") Cc: stable@vger.kernel.org Signed-off-by: Andreas Rammhold Link: https://lore.kernel.org/r/20221223112748.2935235-1-andreas@rammhold.de Signed-off-by: Rob Herring

Merge tag 'mips_6.2_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

2022-12-23T18:49:45+00:00

Pull MIPS fixes from Thomas Bogendoerfer: "Fixes due to DT changes" * tag 'mips_6.2_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: MIPS: dts: bcm63268: Add missing properties to the TWD node MIPS: ralink: mt7621: avoid to init common ralink reset controller

MIPS: dts: bcm63268: Add missing properties to the TWD node

2022-12-21T09:46:10+00:00

We currently have a DTC warning with the current DTS due to the lack of a suitable #address-cells and #size-cells property: DTC arch/mips/boot/dts/brcm/bcm63268-comtrend-vr-3032u.dtb arch/mips/boot/dts/brcm/bcm63268.dtsi:115.5-22: Warning (reg_format): /ubus/timer-mfd@10000080/timer@0:reg: property has invalid length (8 bytes) (#address-cells == 2, #size-cells == 1) arch/mips/boot/dts/brcm/bcm63268.dtsi:120.5-22: Warning (reg_format): /ubus/timer-mfd@10000080/watchdog@1c:reg: property has invalid length (8 bytes) (#address-cells == 2, #size-cells == 1) arch/mips/boot/dts/brcm/bcm63268.dtsi:111.4-35: Warning (ranges_format): /ubus/timer-mfd@10000080:ranges: "ranges" property has invalid length (12 bytes) (parent #address-cells == 1, child #address-cells == 2, #size-cells == 1) Fixes: d3db4b96ab7f ("mips: dts: bcm63268: add TWD block timer") Signed-off-by: Florian Fainelli Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: Thomas Bogendoerfer