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authorNoam Gottlieb <ngottlieb@nvidia.com>2021-06-07 12:23:21 +0300
committerChristoph Hellwig <hch@lst.de>2021-06-17 15:51:19 +0200
commite13b061589ace0aee18bdbf86f3ddb2b6b5b5ab8 (patch)
tree6fe78c77b7fffb70076c6c9c165e98cec7315ac1 /drivers/nvme/target/nvmet.h
parent2a4a910aa4f0acc428dc8d10227c42e14ed21d10 (diff)
nvmet: change sn size and check validity
According to the NVM specification, the serial_number should be 20 bytes (bytes 23:04 of the Identify Controller data structure), and should contain only ASCII characters. In accordance, the serial_number size is changed to 20 bytes and before any attempt to store a new value in serial_number we check that the input is valid - i.e. contains only ASCII characters, is not empty and does not exceed 20 bytes. Signed-off-by: Max Gurtovoy <mgurtovoy@nvidia.com> Signed-off-by: Noam Gottlieb <ngottlieb@nvidia.com> Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/nvme/target/nvmet.h')
-rw-r--r--drivers/nvme/target/nvmet.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/nvme/target/nvmet.h b/drivers/nvme/target/nvmet.h
index d69a409515d6..0ae809ca428c 100644
--- a/drivers/nvme/target/nvmet.h
+++ b/drivers/nvme/target/nvmet.h
@@ -28,6 +28,7 @@
#define NVMET_NO_ERROR_LOC ((u16)-1)
#define NVMET_DEFAULT_CTRL_MODEL "Linux"
#define NVMET_MN_MAX_SIZE 40
+#define NVMET_SN_MAX_SIZE 20
/*
* Supported optional AENs:
@@ -229,7 +230,7 @@ struct nvmet_subsys {
u16 max_qid;
u64 ver;
- u64 serial;
+ char serial[NVMET_SN_MAX_SIZE];
char *subsysnqn;
bool pi_support;