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16b96b6ed8
Use break as guard instruction for the restartable sequence abort handler. Previously, the chosen signature was simply data, based on the assumption that it could always sit in a literal pool. However, some compilation environments favor disabling literal pool. Therefore, ensure the signature is a valid uncommon trap instruction. Suggested-by: Paul Burton <paul.burton@mips.com> Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> CC: Paul Burton <paul.burton@mips.com> CC: James Hogan <jhogan@kernel.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Boqun Feng <boqun.feng@gmail.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> |
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