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Kees Cook d513ea9b7e ARM: vexpress/spc: Avoid negative array index when !SMP 
[ Upstream commit b3f1dd52c991d79118f35e6d1bf4d7cb09882e38 ]

When building multi_v7_defconfig+CONFIG_SMP=n, -Warray-bounds exposes
a couple negative array index accesses:

arch/arm/mach-vexpress/spc.c: In function 've_spc_clk_init':
arch/arm/mach-vexpress/spc.c:583:21: warning: array subscript -1 is below array bounds of 'bool[2]' {aka '_Bool[2]'} [-Warray-bounds]
  583 |   if (init_opp_table[cluster])
      |       ~~~~~~~~~~~~~~^~~~~~~~~
arch/arm/mach-vexpress/spc.c:556:7: note: while referencing 'init_opp_table'
  556 |  bool init_opp_table[MAX_CLUSTERS] = { false };
      |       ^~~~~~~~~~~~~~
arch/arm/mach-vexpress/spc.c:592:18: warning: array subscript -1 is below array bounds of 'bool[2]' {aka '_Bool[2]'} [-Warray-bounds]
  592 |    init_opp_table[cluster] = true;
      |    ~~~~~~~~~~~~~~^~~~~~~~~
arch/arm/mach-vexpress/spc.c:556:7: note: while referencing 'init_opp_table'
  556 |  bool init_opp_table[MAX_CLUSTERS] = { false };
      |       ^~~~~~~~~~~~~~

Skip this logic when built !SMP.

Link: https://lore.kernel.org/r/20220331190443.851661-1-keescook@chromium.org
Cc: Liviu Dudau <liviu.dudau@arm.com>
Cc: Sudeep Holla <sudeep.holla@arm.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: linux-arm-kernel@lists.infradead.org
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
 		2022-04-27 13:53:52 +02:00
..
boot ARM: dts: spear13xx: Update SPI dma properties 2022-04-08 14:40:44 +02:00
common ARM/sa1111: add a missing include of dma-map-ops.h 2020-10-20 09:40:33 +02:00
configs ARM: configs: multi_v5_defconfig: re-enable CONFIG_V4L_PLATFORM_DRIVERS 2022-04-08 14:40:11 +02:00
crypto crypto: arm/aes-neonbs-cbc - Select generic cbc and aes 2022-04-08 14:40:41 +02:00
include ARM: Spectre-BHB: provide empty stub for non-config 2022-03-16 14:16:01 +01:00
kernel uaccess: fix type mismatch warnings from access_ok() 2022-04-08 14:40:35 +02:00
lib arm: propagate the calling convention changes down to csum_partial_copy_from_user() 2020-08-20 15:45:16 -04:00
mach-actions
…
mach-alpine
…
mach-artpec
…
mach-asm9260
…
mach-aspeed
…
mach-at91 ARM: at91: pm: do not panic if ram controllers are not enabled 2021-10-13 10:04:25 +02:00
mach-axxia
…
mach-bcm ARM: bcm: Enable BCM7038_L1_IRQ for ARCH_BRCMSTB 2020-08-17 09:20:34 -07:00
mach-berlin
…
mach-clps711x
…
mach-cns3xxx
…
mach-davinci ARM: davinci: da850-evm: Avoid NULL pointer dereference 2022-04-20 09:23:29 +02:00
mach-digicolor
…
mach-dove
…
mach-ebsa110
…
mach-efm32
…
mach-ep93xx treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
mach-exynos ARM: exynos: add missing of_node_put for loop iteration 2021-07-20 16:05:54 +02:00
mach-footbridge ARM: footbridge: fix PCI interrupt mapping 2021-04-21 13:00:58 +02:00
mach-gemini
…
mach-highbank dma-mapping: split <linux/dma-mapping.h> 2020-10-06 07:07:03 +02:00
mach-hisi ARM: hisi: add support for SD5203 SoC 2020-09-30 09:56:03 +08:00
mach-imx ARM: imx6: disable the GIC CPU interface before calling stby-poweroff sequence 2021-10-13 10:04:27 +02:00
mach-integrator
…
mach-iop32x ARM: iop32x: offset IRQ numbers by 1 2022-04-08 14:40:42 +02:00
mach-ixp4xx clocksource/drivers/ixp4xx: Select TIMER_OF when needed 2021-03-04 11:37:57 +01:00
mach-keystone ARM: keystone: fix integer overflow warning 2021-04-21 13:00:52 +02:00
mach-lpc18xx
…
mach-lpc32xx
…
mach-mediatek
…
mach-meson
…
mach-milbeaut
…
mach-mmp ARM: mmp: Fix failure to remove sram device 2022-04-08 14:40:35 +02:00
mach-moxart
…
mach-mstar ARM: mstar: Select HAVE_ARM_ARCH_TIMER 2022-04-08 14:39:47 +02:00
mach-mv78xx0
…
mach-mvebu mvebu fixes for 5.9 (part 1) 2020-10-26 10:11:55 +01:00
mach-mxs
…
mach-nomadik
…
mach-npcm
…
mach-nspire
…
mach-omap1 ARM: OMAP1: ams-delta: remove unused function ams_delta_camera_power 2021-09-08 08:49:00 +02:00
mach-omap2 ARM: OMAP2+: adjust the location of put_device() call in omapdss_init_of 2022-02-23 12:01:05 +01:00
mach-orion5x treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
mach-oxnas
…
mach-picoxcell
…
mach-prima2
…
mach-pxa power: supply: gpio-charger: Convert to GPIO descriptors 2020-08-27 16:47:14 +02:00
mach-qcom
…
mach-rda
…
mach-realtek
…
mach-realview
…
mach-rockchip
…
mach-rpc treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
mach-s3c ARM: 9187/1: JIVE: fix return value of __setup handler 2022-04-08 14:40:43 +02:00
mach-s5pv210 ARM: s5pv210: use private pm save/restore 2020-08-19 21:33:11 +02:00
mach-sa1100 power: supply: gpio-charger: Convert to GPIO descriptors 2020-08-27 16:47:14 +02:00
mach-shmobile ARM: shmobile: rcar-gen2: Add missing of_node_put() 2022-01-27 10:54:11 +01:00
mach-socfpga ARM: socfpga: fix missing RESET_CONTROLLER 2022-02-16 12:54:21 +01:00
mach-spear
…
mach-sti
…
mach-stm32 ARM: stm32: Replace HTTP links with HTTPS ones 2020-10-03 12:38:54 -07:00
mach-sunxi ARM: sunxi: Add machine match for the Allwinner V3 SoC 2020-11-02 10:28:14 +01:00
mach-tango
…
mach-tegra treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
mach-u300
…
mach-uniphier
…
mach-ux500
…
mach-versatile
…
mach-vexpress ARM: vexpress/spc: Avoid negative array index when !SMP 2022-04-27 13:53:52 +02:00
mach-vt8500
…
mach-zx
…
mach-zynq
…
mm ARM: fix build warning in proc-v7-bugs.c 2022-03-11 12:11:53 +01:00
net bpf, arm: Fix register clobbering in div/mod implementation 2021-10-13 10:04:26 +02:00
nwfpe
…
oprofile
…
plat-omap PM: AVS: smartreflex Move driver to soc specific drivers 2020-10-16 18:28:43 +02:00
plat-orion ARM: orion/gpio: Make use of for_each_requested_gpio() 2020-07-18 22:49:23 +02:00
plat-pxa
…
plat-versatile
…
probes ARM: 9139/1: kprobes: fix arch_init_kprobes() prototype 2021-11-02 19:48:18 +01:00
tools mm/madvise: introduce process_madvise() syscall: an external memory hinting API 2020-10-18 09:27:10 -07:00
vdso kbuild: explicitly specify the build id style 2020-10-09 23:57:30 +09:00
vfp ARM: 9044/1: vfp: use undef hook for VFP support detection 2020-12-30 11:54:02 +01:00
xen Xen/gnttab: handle p2m update errors on a per-slot basis 2021-03-07 12:34:15 +01:00
Kbuild ARM: 8981/1: add arch/arm/Kbuild 2020-07-21 16:33:35 +01:00
Kconfig ARM: 9122/1: select HAVE_FUTEX_CMPXCHG 2021-10-27 09:56:56 +02:00
Kconfig-nommu
…
Kconfig.assembler ARM: 8991/1: use VFP assembler mnemonics if available 2020-07-21 16:33:39 +01:00
Kconfig.debug ARM: imx: rename DEBUG_IMX21_IMX27_UART to DEBUG_IMX27_UART 2022-01-27 10:54:11 +01:00
Makefile ARM: 9156/1: drop cc-option fallbacks for architecture selection 2021-11-18 14:04:28 +01:00