From: Christophe JAILLET Date: Sun, 10 May 2026 20:12:52 +0000 (+0200) Subject: nfc: nci: uart: Constify struct tty_ldisc_ops X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5251ffc72996ed9e447ca637db80141627476b09;p=thirdparty%2Flinux.git nfc: nci: uart: Constify struct tty_ldisc_ops 'struct tty_ldisc_ops' is not modified in this driver. Constifying this structure moves some data to a read-only section, so increases overall security, especially when the structure holds some function pointers. On a x86_64, with allmodconfig: Before: ====== text data bss dec hex filename 11454 3352 256 15062 3ad6 net/nfc/nci/uart.o After: ===== text data bss dec hex filename 11646 3160 256 15062 3ad6 net/nfc/nci/uart.o Signed-off-by: Christophe JAILLET Link: https://patch.msgid.link/c756755a72cdfde2877a18ddee01eaa4f633c220.1778443960.git.christophe.jaillet@wanadoo.fr Signed-off-by: David Heidelberg --- diff --git a/net/nfc/nci/uart.c b/net/nfc/nci/uart.c index 5a3aed7f84f5b..aa20e8603f327 100644 --- a/net/nfc/nci/uart.c +++ b/net/nfc/nci/uart.c @@ -421,7 +421,7 @@ void nci_uart_set_config(struct nci_uart *nu, int baudrate, int flow_ctrl) } EXPORT_SYMBOL_GPL(nci_uart_set_config); -static struct tty_ldisc_ops nci_uart_ldisc = { +static const struct tty_ldisc_ops nci_uart_ldisc = { .owner = THIS_MODULE, .num = N_NCI, .name = "n_nci",