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authorChristoph Hellwig <hch@lst.de>2016-04-26 13:51:56 +0200
committerJens Axboe <axboe@fb.com>2016-05-02 17:09:20 +0200
commit04a934d4c7251e6458a7898c2b4d6c2da29b132c (patch)
treefa06646af2a3657a0533c27d18dc4f727293f892 /drivers/nvme
parentNVMe: nvme_core_exit() should do cleanup in the reverse order as nvme_core_in... (diff)
downloadlinux-04a934d4c7251e6458a7898c2b4d6c2da29b132c.tar.xz
linux-04a934d4c7251e6458a7898c2b4d6c2da29b132c.zip
nvme: remove the io_incapable method
It's unused since "NVMe: Move error handling to failed reset handler". Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Jon Derrick <jonathan.derrick@intel.com> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/nvme')
-rw-r--r--drivers/nvme/host/nvme.h12
-rw-r--r--drivers/nvme/host/pci.c8
2 files changed, 0 insertions, 20 deletions
diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h
index 9b96e7586194..41e922b33f11 100644
--- a/drivers/nvme/host/nvme.h
+++ b/drivers/nvme/host/nvme.h
@@ -136,7 +136,6 @@ struct nvme_ctrl_ops {
int (*reg_read32)(struct nvme_ctrl *ctrl, u32 off, u32 *val);
int (*reg_write32)(struct nvme_ctrl *ctrl, u32 off, u32 val);
int (*reg_read64)(struct nvme_ctrl *ctrl, u32 off, u64 *val);
- bool (*io_incapable)(struct nvme_ctrl *ctrl);
int (*reset_ctrl)(struct nvme_ctrl *ctrl);
void (*free_ctrl)(struct nvme_ctrl *ctrl);
};
@@ -150,17 +149,6 @@ static inline bool nvme_ctrl_ready(struct nvme_ctrl *ctrl)
return val & NVME_CSTS_RDY;
}
-static inline bool nvme_io_incapable(struct nvme_ctrl *ctrl)
-{
- u32 val = 0;
-
- if (ctrl->ops->io_incapable(ctrl))
- return true;
- if (ctrl->ops->reg_read32(ctrl, NVME_REG_CSTS, &val))
- return true;
- return val & NVME_CSTS_CFS;
-}
-
static inline int nvme_reset_subsystem(struct nvme_ctrl *ctrl)
{
if (!ctrl->subsystem)
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index cc46fdf17b16..321b8e03843a 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -1942,13 +1942,6 @@ static int nvme_pci_reg_read64(struct nvme_ctrl *ctrl, u32 off, u64 *val)
return 0;
}
-static bool nvme_pci_io_incapable(struct nvme_ctrl *ctrl)
-{
- struct nvme_dev *dev = to_nvme_dev(ctrl);
-
- return !dev->bar || dev->online_queues < 2;
-}
-
static int nvme_pci_reset_ctrl(struct nvme_ctrl *ctrl)
{
return nvme_reset(to_nvme_dev(ctrl));
@@ -1959,7 +1952,6 @@ static const struct nvme_ctrl_ops nvme_pci_ctrl_ops = {
.reg_read32 = nvme_pci_reg_read32,
.reg_write32 = nvme_pci_reg_write32,
.reg_read64 = nvme_pci_reg_read64,
- .io_incapable = nvme_pci_io_incapable,
.reset_ctrl = nvme_pci_reset_ctrl,
.free_ctrl = nvme_pci_free_ctrl,
};