Catalin Marinas f4ea8e05f2 lkdtm/bugs: Do not confuse the clang/objtool with busy wait loop ...

Since commit eb972eab07 ("lkdtm/bugs: Add cases for BUG and PANIC
occurring in hardirq context"), building with clang for x86_64 results
in the following warnings:

vmlinux.o: warning: objtool: lkdtm_PANIC_IN_HARDIRQ(): unexpected end of section .text.lkdtm_PANIC_IN_HARDIRQ
vmlinux.o: warning: objtool: lkdtm_BUG_IN_HARDIRQ(): unexpected end of section .text.lkdtm_BUG_IN_HARDIRQ

caused by busy "while (wait_for_...);" loops. Add READ_ONCE() and
cpu_relax() to better indicate the intention and avoid any unwanted
compiler optimisations.

Fixes: eb972eab07 ("lkdtm/bugs: Add cases for BUG and PANIC occurring in hardirq context")
Reported-by: kernel test robot <[email protected]>
Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/
Signed-off-by: Catalin Marinas <[email protected]>

2025-12-19 15:09:09 +00:00

..

altera-stapl

…

amd-sbi

Merge 6.18-rc3 into char-misc-next

2025-10-27 07:48:19 +01:00

bcm-vk

…

c2port

…

cardreader

Merge tag 'char-misc-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

2025-10-04 16:26:32 -07:00

cb710

misc: cb710: Fix a NULL vs IS_ERR() check in probe()

2025-11-26 15:09:34 +01:00

eeprom

eeprom: at25: fram: Fix chip range in comment

2025-10-22 07:59:57 +02:00

genwqe

misc: genwqe: Fix incorrect cmd field being reported in error

2025-09-06 16:00:32 +02:00

ibmasm

ibmasmfs: get rid of ibmasmfs_dir_ops

2025-11-16 01:35:04 -05:00

keba

…

lis3lv02d

misc: lis3lv02d: Use min to simplify lis3lv02d_misc_read

2025-10-22 07:59:57 +02:00

lkdtm

lkdtm/bugs: Do not confuse the clang/objtool with busy wait loop

2025-12-19 15:09:09 +00:00

mchp_pci1xxxx

treewide: rename GPIO set callbacks back to their original names

2025-08-07 10:07:06 +02:00

mei

Merge tag 'char-misc-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

2025-12-06 18:34:24 -08:00

ocxl

powerpc, ocxl: Fix extraction of struct xive_irq_data

2025-10-13 09:40:55 +05:30

pvpanic

…

rp1

misc: rp1: Fix an error handling path in rp1_probe()

2025-11-26 15:09:49 +01:00

sgi-gru

…

sgi-xp

…

uacce

…

vmw_vmci

vmw_vmci: fix typo in comment

2025-10-22 07:54:15 +02:00

ad525x_dpot-i2c.c

…

ad525x_dpot-spi.c

…

ad525x_dpot.c

misc: ad525x_dpot: Use str_enabled_disabled() in sysfs_show_reg()

2025-09-06 15:59:46 +02:00

ad525x_dpot.h

…

apds990x.c

misc: apds990x: Drop superfluous return statement

2025-08-19 12:37:13 +02:00

apds9802als.c

…

atmel-ssc.c

…

bh1770glc.c

misc: bh1770glc: use pm_runtime_resume_and_get() in power_state_store

2025-11-26 15:09:37 +01:00

cs5535-mfgpt.c

…

ds1682.c

…

dummy-irq.c

…

dw-xdata-pcie.c

dw-xdata: Use str_write_read() in dw_xdata_start() and dw_xdata_perf()

2025-09-06 15:59:39 +02:00

enclosure.c

…

fastrpc.c

misc: fastrpc: Fix dma_buf object leak in fastrpc_map_lookup

2025-10-22 08:03:24 +02:00

gehc-achc.c

…

hi6421v600-irq.c

…

hisi_hikey_usb.c

misc: hisi_hikey_usb: Use str_enabled_disabled() in hub_power_ctrl()

2025-08-19 12:37:15 +02:00

hmc6352.c

…

hpilo.c

…

hpilo.h

…

ibmvmc.c

…

ibmvmc.h

…

ics932s401.c

…

isl29003.c

…

isl29020.c

…

Kconfig

scsi: ufs: core: Fix RPMB link error by reversing Kconfig dependencies

2025-12-03 01:33:10 -05:00

kgdbts.c

…

lan966x_pci.c

…

lan966x_pci.dtso

…

lattice-ecp3-config.c

…

Makefile

char: misc: Move drivers/misc/misc_minor_kunit.c to drivers/char/

2025-08-19 12:41:17 +02:00

mrvl_cn10k_dpi.c

…

nsm.c

…

ntsync.c

ntsync: convert ntsync_obj_get_fd() to FD_PREPARE()

2025-11-28 12:42:36 +01:00

open-dice.c

…

pch_phub.c

…

pci_endpoint_test.c

misc: pci_endpoint_test: Cleanup extra 0 initialization

2025-08-27 18:39:32 +05:30

phantom.c

…

qcom-coincell.c

…

rpmb-core.c

…

smpro-errmon.c

…

smpro-misc.c

…

sram-exec.c

…

sram.c

…

sram.h

…

ti_fpc202.c

treewide: rename GPIO set callbacks back to their original names

2025-08-07 10:07:06 +02:00

tifm_7xx1.c

…

tifm_core.c

…

tps6594-esm.c

…

tps6594-pfsm.c

…

tsl2550.c

…

vcpu_stall_detector.c

…

vmw_balloon.c

vmw_balloon: indicate success when effectively deflating during migration

2025-10-21 15:46:17 -07:00

xilinx_sdfec.c

…

xilinx_tmr_inject.c

…

xilinx_tmr_manager.c

…