of_device_ids are not supposed to change at runtime. All functions working with of_device_ids provided by <linux/of.h> work with const of_device_ids. So mark the non-const structs as const. File size before: text data bss dec hex filename 2001 2168 48 4217 1079 drivers/crypto/n2_core.o File size after constify dummy_tlb_ops.: text data bss dec hex filename 3601 536 48 4185 1059 drivers/crypto/n2_core.o Signed-off-by: Arvind Yadav <arvind.yadav.cs@xxxxxxxxx> --- drivers/crypto/n2_core.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/crypto/n2_core.c b/drivers/crypto/n2_core.c index 4ecb77a..2694513 100644 --- a/drivers/crypto/n2_core.c +++ b/drivers/crypto/n2_core.c @@ -2169,7 +2169,7 @@ static int n2_mau_remove(struct platform_device *dev) return 0; } -static struct of_device_id n2_crypto_match[] = { +static const struct of_device_id n2_crypto_match[] = { { .name = "n2cp", .compatible = "SUNW,n2-cwq", @@ -2196,7 +2196,7 @@ static int n2_mau_remove(struct platform_device *dev) .remove = n2_crypto_remove, }; -static struct of_device_id n2_mau_match[] = { +static const struct of_device_id n2_mau_match[] = { { .name = "ncp", .compatible = "SUNW,n2-mau", -- 1.9.1