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authorMark Rutland <[email protected]>2021-11-29 13:06:53 +0000
committerThomas Gleixner <[email protected]>2021-12-01 00:06:43 +0100
commitdca99fb643a2e9bc2e67a0f626b09d4f177f0f09 (patch)
tree55747d41170b37c93cd762186cc7210e19c82ce8 /drivers/usb/cdns3
parent7ad639840acf2800b5f387c495795f995a67a329 (diff)
x86: Snapshot thread flags
Some thread flags can be set remotely, and so even when IRQs are disabled, the flags can change under our feet. Generally this is unlikely to cause a problem in practice, but it is somewhat unsound, and KCSAN will legitimately warn that there is a data race. To avoid such issues, a snapshot of the flags has to be taken prior to using them. Some places already use READ_ONCE() for that, others do not. Convert them all to the new flag accessor helpers. Signed-off-by: Mark Rutland <[email protected]> Signed-off-by: Thomas Gleixner <[email protected]> Reviewed-by: Thomas Gleixner <[email protected]> Acked-by: Paul E. McKenney <[email protected]> Link: https://lore.kernel.org/r/[email protected]
Diffstat (limited to 'drivers/usb/cdns3')
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