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arm64: compat: Allow single-byte watchpoints on all addresses
Commit d968d2b801
("ARM: 7497/1: hw_breakpoint: allow single-byte
watchpoints on all addresses") changed the validation requirements for
hardware watchpoints on arch/arm/. Update our compat layer to implement
the same relaxation.
Cc: <stable@vger.kernel.org>
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
parent
609488bc97
commit
849adec412
@ -536,13 +536,14 @@ int hw_breakpoint_arch_parse(struct perf_event *bp,
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/* Aligned */
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break;
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case 1:
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/* Allow single byte watchpoint. */
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if (hw->ctrl.len == ARM_BREAKPOINT_LEN_1)
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break;
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case 2:
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/* Allow halfword watchpoints and breakpoints. */
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if (hw->ctrl.len == ARM_BREAKPOINT_LEN_2)
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break;
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case 3:
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/* Allow single byte watchpoint. */
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if (hw->ctrl.len == ARM_BREAKPOINT_LEN_1)
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break;
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default:
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return -EINVAL;
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}
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