diff options
| author | Brian Gerst <brgerst@gmail.com> | 2020-06-18 01:56:24 +0300 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2020-06-18 14:09:17 +0300 |
| commit | c9a1ff316bc9b1d1806a4366d0aef6e18833ba52 (patch) | |
| tree | f2dae0b0a21105a645d90444b3effddc06504c94 /arch/arc/include/asm/dma.h | |
| parent | a5ce9f2bb665d1d2b31f139a02dbaa2dfbb62fa6 (diff) | |
| download | linux-c9a1ff316bc9b1d1806a4366d0aef6e18833ba52.tar.xz | |
x86/stackprotector: Pre-initialize canary for secondary CPUs
The idle tasks created for each secondary CPU already have a random stack
canary generated by fork(). Copy the canary to the percpu variable before
starting the secondary CPU which removes the need to call
boot_init_stack_canary().
Signed-off-by: Brian Gerst <brgerst@gmail.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20200617225624.799335-1-brgerst@gmail.com
Diffstat (limited to 'arch/arc/include/asm/dma.h')
0 files changed, 0 insertions, 0 deletions