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nvme: mark the result argument to nvme_complete_async_event volatile

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We'll need that in the PCIe driver soon as we'll read it straight off the
CQ.

Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Christoph Hellwig 2018-05-17 18:31:46 +02:00 committed by Keith Busch
parent cc1d5e749a
commit 287a63ebbe
2 changed files with 2 additions and 2 deletions
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2
drivers/nvme/host/core.c
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@ -3344,7 +3344,7 @@ static void nvme_fw_act_work(struct work_struct *work)
}
void nvme_complete_async_event(struct nvme_ctrl *ctrl, __le16 status,
union nvme_result *res)
volatile union nvme_result *res)
{
u32 result = le32_to_cpu(res->u32);

2
drivers/nvme/host/nvme.h
View File

@ -400,7 +400,7 @@ int nvme_sec_submit(void *data, u16 spsp, u8 secp, void *buffer, size_t len,
bool send);
void nvme_complete_async_event(struct nvme_ctrl *ctrl, __le16 status,
union nvme_result *res);
volatile union nvme_result *res);
void nvme_stop_queues(struct nvme_ctrl *ctrl);
void nvme_start_queues(struct nvme_ctrl *ctrl);