i2c_device_id are not supposed to change at runtime. All functions working with i2c_device_id provided by <linux/i2c.h> work with const i2c_device_id. So mark the non-const structs as const. Arvind Yadav (8): [PATCH 1/8] nfc: microread: constify i2c_device_id [PATCH 2/8] nfc: nfcmrvl: constify i2c_device_id [PATCH 3/8] nfc: nxp-nci: constify i2c_device_id [PATCH 4/8] nfc: pn533: constify i2c_device_id [PATCH 5/8] nfc: pn544: constify i2c_device_id [PATCH 6/8] nfc: s3fwrn5: constify i2c_device_id [PATCH 7/8] nfc: st-nci: constify i2c_device_id [PATCH 8/8] nfc: st21nfca: constify i2c_device_id drivers/nfc/microread/i2c.c | 2 +- drivers/nfc/nfcmrvl/i2c.c | 2 +- drivers/nfc/nxp-nci/i2c.c | 2 +- drivers/nfc/pn533/i2c.c | 2 +- drivers/nfc/pn544/i2c.c | 2 +- drivers/nfc/s3fwrn5/i2c.c | 2 +- drivers/nfc/st-nci/i2c.c | 2 +- drivers/nfc/st21nfca/i2c.c | 2 +- 8 files changed, 8 insertions(+), 8 deletions(-) -- 2.7.4