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nvmet: use NVME_IDENTIFY_DATA_SIZE

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Use NVME_IDENTIFY_DATA_SIZE define instead of hard coding the magic
4096 value.

Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Hannes Reinecke <hare@suse.com>
[hch: converted three more users]
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Johannes Thumshirn 2017-06-07 11:45:29 +02:00 committed by Christoph Hellwig
parent 0945e56994
commit 0add5e8e58
5 changed files with 8 additions and 6 deletions
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2
drivers/nvme/host/lightnvm.c
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@ -242,7 +242,7 @@ static inline void _nvme_nvm_check_size(void)
BUILD_BUG_ON(sizeof(struct nvme_nvm_erase_blk) != 64);
BUILD_BUG_ON(sizeof(struct nvme_nvm_id_group) != 960);
BUILD_BUG_ON(sizeof(struct nvme_nvm_addr_format) != 16);
BUILD_BUG_ON(sizeof(struct nvme_nvm_id) != 4096);
BUILD_BUG_ON(sizeof(struct nvme_nvm_id) != NVME_IDENTIFY_DATA_SIZE);
BUILD_BUG_ON(sizeof(struct nvme_nvm_bb_tbl) != 64);
}

4
drivers/nvme/host/pci.c
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@ -183,8 +183,8 @@ static inline void _nvme_check_size(void)
BUILD_BUG_ON(sizeof(struct nvme_format_cmd) != 64);
BUILD_BUG_ON(sizeof(struct nvme_abort_cmd) != 64);
BUILD_BUG_ON(sizeof(struct nvme_command) != 64);
BUILD_BUG_ON(sizeof(struct nvme_id_ctrl) != 4096);
BUILD_BUG_ON(sizeof(struct nvme_id_ns) != 4096);
BUILD_BUG_ON(sizeof(struct nvme_id_ctrl) != NVME_IDENTIFY_DATA_SIZE);
BUILD_BUG_ON(sizeof(struct nvme_id_ns) != NVME_IDENTIFY_DATA_SIZE);
BUILD_BUG_ON(sizeof(struct nvme_lba_range_type) != 64);
BUILD_BUG_ON(sizeof(struct nvme_smart_log) != 512);
BUILD_BUG_ON(sizeof(struct nvme_dbbuf) != 64);

4
drivers/nvme/target/admin-cmd.c
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@ -336,7 +336,7 @@ out:
static void nvmet_execute_identify_nslist(struct nvmet_req *req)
{
static const int buf_size = 4096;
static const int buf_size = NVME_IDENTIFY_DATA_SIZE;
struct nvmet_ctrl *ctrl = req->sq->ctrl;
struct nvmet_ns *ns;
u32 min_nsid = le32_to_cpu(req->cmd->identify.nsid);
@ -504,7 +504,7 @@ u16 nvmet_parse_admin_cmd(struct nvmet_req *req)
}
break;
case nvme_admin_identify:
req->data_len = 4096;
req->data_len = NVME_IDENTIFY_DATA_SIZE;
switch (cmd->identify.cns) {
case NVME_ID_CNS_NS:
req->execute = nvmet_execute_identify_ns;

2
drivers/nvme/target/discovery.c
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@ -185,7 +185,7 @@ u16 nvmet_parse_discovery_cmd(struct nvmet_req *req)
return NVME_SC_INVALID_OPCODE | NVME_SC_DNR;
}
case nvme_admin_identify:
req->data_len = 4096;
req->data_len = NVME_IDENTIFY_DATA_SIZE;
switch (cmd->identify.cns) {
case NVME_ID_CNS_CTRL:
req->execute =

2
include/linux/nvme.h
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@ -665,6 +665,8 @@ struct nvme_identify {
__u32 rsvd11[5];
};
#define NVME_IDENTIFY_DATA_SIZE 4096
struct nvme_features {
__u8 opcode;
__u8 flags;