Hao Si 2663b33885 soc: fsl: dpio: Get the cpumask through cpumask_of(cpu) ... The local variable 'cpumask_t mask' is in the stack memory, and its address is assigned to 'desc->affinity' in 'irq_set_affinity_hint()'. But the memory area where this variable is located is at risk of being modified. During LTP testing, the following error was generated: Unable to handle kernel paging request at virtual address ffff000012e9b790 Mem abort info: ESR = 0x96000007 Exception class = DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 Data abort info: ISV = 0, ISS = 0x00000007 CM = 0, WnR = 0 swapper pgtable: 4k pages, 48-bit VAs, pgdp = 0000000075ac5e07 [ffff000012e9b790] pgd=00000027dbffe003, pud=00000027dbffd003, pmd=00000027b6d61003, pte=0000000000000000 Internal error: Oops: 96000007 [#1] PREEMPT SMP Modules linked in: xt_conntrack Process read_all (pid: 20171, stack limit = 0x0000000044ea4095) CPU: 14 PID: 20171 Comm: read_all Tainted: G B W Hardware name: NXP Layerscape LX2160ARDB (DT) pstate: 80000085 (Nzcv daIf -PAN -UAO) pc : irq_affinity_hint_proc_show+0x54/0xb0 lr : irq_affinity_hint_proc_show+0x4c/0xb0 sp : ffff00001138bc10 x29: ffff00001138bc10 x28: 0000ffffd131d1e0 x27: 00000000007000c0 x26: ffff8025b9480dc0 x25: ffff8025b9480da8 x24: 00000000000003ff x23: ffff8027334f8300 x22: ffff80272e97d000 x21: ffff80272e97d0b0 x20: ffff8025b9480d80 x19: ffff000009a49000 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000040 x11: 0000000000000000 x10: ffff802735b79b88 x9 : 0000000000000000 x8 : 0000000000000000 x7 : ffff000009a49848 x6 : 0000000000000003 x5 : 0000000000000000 x4 : ffff000008157d6c x3 : ffff00001138bc10 x2 : ffff000012e9b790 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: irq_affinity_hint_proc_show+0x54/0xb0 seq_read+0x1b0/0x440 proc_reg_read+0x80/0xd8 __vfs_read+0x60/0x178 vfs_read+0x94/0x150 ksys_read+0x74/0xf0 __arm64_sys_read+0x24/0x30 el0_svc_common.constprop.0+0xd8/0x1a0 el0_svc_handler+0x34/0x88 el0_svc+0x10/0x14 Code: f9001bbf 943e0732 f94066c2 b4000062 (f9400041) ---[ end trace b495bdcb0b3b732b ]--- Kernel panic - not syncing: Fatal exception SMP: stopping secondary CPUs SMP: failed to stop secondary CPUs 0,2-4,6,8,11,13-15 Kernel Offset: disabled CPU features: 0x0,21006008 Memory Limit: none ---[ end Kernel panic - not syncing: Fatal exception ]--- Fix it by using 'cpumask_of(cpu)' to get the cpumask. Signed-off-by: Hao Si <si.hao@zte.com.cn> Signed-off-by: Lin Chen <chen.lin5@zte.com.cn> Signed-off-by: Yi Wang <wang.yi59@zte.com.cn> Signed-off-by: Li Yang <leoyang.li@nxp.com>		2020-11-23 19:27:45 -06:00
..
actions	soc: actions: include header to fix missing prototype	2020-09-22 12:45:16 +05:30
amlogic	soc: amlogic: pm-domains: use always-on flag	2020-09-24 09:50:01 -07:00
aspeed	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00
atmel	drivers: soc: atmel: move sam9x60 under its own config flag	2019-12-10 00:44:53 +01:00
bcm	soc: bcm: brcmstb: biuctrl: Change RAC data line prefetching after 4 consecutive lines	2020-09-06 12:43:02 -07:00
dove
fsl	soc: fsl: dpio: Get the cpumask through cpumask_of(cpu)	2020-11-23 19:27:45 -06:00
gemini
imx	soc: imx: gpcv2: Use dev_err_probe() to simplify error handling	2020-08-22 20:57:57 +08:00
ixp4xx
kendryte	riscv: K210: Add a built-in device tree	2020-05-18 11:38:06 -07:00
lantiq	soc: lantiq: convert to devm_platform_ioremap_resource	2020-01-10 11:44:52 -08:00
mediatek	soc: mediatek: cmdq: add clear option in cmdq_pkt_wfe api	2020-09-25 17:27:39 +02:00
qcom	ARM: SoC-related driver updates	2020-10-24 10:39:22 -07:00
renesas	soc: renesas: r8a779a0-sysc: Add r8a779a0 support	2020-09-16 08:57:31 +02:00
rockchip	PM: AVS: rockchip-io: Move the driver to the rockchip specific drivers	2020-10-16 18:23:15 +02:00
samsung	ARM: SoC platform updates	2020-10-24 10:33:08 -07:00
sifive	soc: sifive: l2 cache: Mark l2_get_priv_group as static	2020-05-28 15:57:49 -07:00
sunxi	soc: sunxi: sram: remove unneeded semicolon	2020-09-11 17:02:39 +02:00
tegra	ARM: Devicetree updates	2020-10-24 10:44:18 -07:00
ti	ARM: SoC-related driver updates	2020-10-24 10:39:22 -07:00
ux500	soc: ux500: Use custom soc attribute group instead of device_create_file	2020-07-06 09:48:06 +01:00
versatile	soc: integrator: Drop pointless static qualifier in integrator_soc_init()	2020-08-20 08:57:05 +02:00
xilinx	soc: xilinx: Fix error code in zynqmp_pm_probe()	2020-06-18 10:07:17 +02:00
zte
Kconfig	riscv: Add Kendryte K210 SoC support	2020-04-03 10:49:52 -07:00
Makefile	RISC-V Patches for the 5.7 Merge Window, Part 1	2020-04-09 10:51:30 -07:00