Commit-ID: 34d677a90f0682a26327dbefc0db1cf81647e7bc Gitweb: http://git.kernel.org/tip/34d677a90f0682a26327dbefc0db1cf81647e7bc Author: Marc Zyngier <marc.zyngier@xxxxxxx> AuthorDate: Mon, 19 Dec 2016 17:16:45 +0000 Committer: Marc Zyngier <marc.zyngier@xxxxxxx> CommitDate: Wed, 8 Feb 2017 17:09:56 +0000 irqchip/gic-v3-its: Zero command on allocation When reusing commands from the ring buffer, it would be better to zero them out, even if the ITS should ignore the unused fields. Signed-off-by: Marc Zyngier <marc.zyngier@xxxxxxx> --- drivers/irqchip/irq-gic-v3-its.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c index ee928de..4a895c6 100644 --- a/drivers/irqchip/irq-gic-v3-its.c +++ b/drivers/irqchip/irq-gic-v3-its.c @@ -411,6 +411,12 @@ static struct its_cmd_block *its_allocate_entry(struct its_node *its) if (its->cmd_write == (its->cmd_base + ITS_CMD_QUEUE_NR_ENTRIES)) its->cmd_write = its->cmd_base; + /* Clear command */ + cmd->raw_cmd[0] = 0; + cmd->raw_cmd[1] = 0; + cmd->raw_cmd[2] = 0; + cmd->raw_cmd[3] = 0; + return cmd; } -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
|