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| author | Sean Christopherson <seanjc@google.com> | 2024-12-06 08:20:06 -0800 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2024-12-06 19:57:05 +0100 |
| commit | 492077668fb453b8b16c842fcf3fafc2ebc190e9 (patch) | |
| tree | aec53d55ce1153f7b75692287694f84d29a8fbf5 /drivers/usb/mtu3 | |
| parent | 9677be09e5e4fbe48aeccb06ae3063c5eba331c3 (diff) | |
| download | lwn-492077668fb453b8b16c842fcf3fafc2ebc190e9.tar.gz lwn-492077668fb453b8b16c842fcf3fafc2ebc190e9.zip | |
x86/CPU/AMD: WARN when setting EFER.AUTOIBRS if and only if the WRMSR fails
When ensuring EFER.AUTOIBRS is set, WARN only on a negative return code
from msr_set_bit(), as '1' is used to indicate the WRMSR was successful
('0' indicates the MSR bit was already set).
Fixes: 8cc68c9c9e92 ("x86/CPU/AMD: Make sure EFER[AIBRSE] is set")
Reported-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/Z1MkNofJjt7Oq0G6@google.com
Closes: https://lore.kernel.org/all/20241205220604.GA2054199@thelio-3990X
Diffstat (limited to 'drivers/usb/mtu3')
0 files changed, 0 insertions, 0 deletions