From: Jiri Slaby (SUSE) Date: Mon, 23 Jun 2025 06:10:35 +0000 (+0200) Subject: serial: 8250: export RSA functions X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=b20d6576cdb3530d4a2d81611a8b8eb99780ce3e;p=users%2Fjedix%2Flinux-maple.git serial: 8250: export RSA functions The RSA functions moved by the below commit to 8250_rsa.c are used in 8250_base.c. Since that can be a module (when CONFIG_SERIAL_8250=m), this causes build failures: ERROR: modpost: "rsa_autoconfig" [drivers/tty/serial/8250/8250_base.ko] undefined! ERROR: modpost: "rsa_reset" [drivers/tty/serial/8250/8250_base.ko] undefined! ERROR: modpost: "rsa_disable" [drivers/tty/serial/8250/8250_base.ko] undefined! ERROR: modpost: "rsa_enable" [drivers/tty/serial/8250/8250_base.ko] undefined! Fix them by exporting the functions. But only to the base module using EXPORT_SYMBOL_GPL_FOR_MODULES(). (And not to the whole world.) Signed-off-by: "Jiri Slaby (SUSE)" Reported-by: Stephen Rothwell Link: https://lore.kernel.org/all/20250619165607.33403e19@canb.auug.org.au/ Fixes: 5a128fb475fb ("serial: 8250: move RSA functions to 8250_rsa.c") Link: https://lore.kernel.org/r/20250623061035.436414-1-jirislaby@kernel.org Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/tty/serial/8250/8250_rsa.c b/drivers/tty/serial/8250/8250_rsa.c index 59d2ecf230688..d34093cc03ad9 100644 --- a/drivers/tty/serial/8250/8250_rsa.c +++ b/drivers/tty/serial/8250/8250_rsa.c @@ -147,6 +147,7 @@ void rsa_enable(struct uart_8250_port *up) if (up->port.uartclk == SERIAL_RSA_BAUD_BASE * 16) serial_out(up, UART_RSA_FRR, 0); } +EXPORT_SYMBOL_GPL_FOR_MODULES(rsa_enable, "8250_base"); /* * Attempts to turn off the RSA FIFO and resets the RSA board back to 115kbps compat mode. It is @@ -178,6 +179,7 @@ void rsa_disable(struct uart_8250_port *up) up->port.uartclk = SERIAL_RSA_BAUD_BASE_LO * 16; uart_port_unlock_irq(&up->port); } +EXPORT_SYMBOL_GPL_FOR_MODULES(rsa_disable, "8250_base"); void rsa_autoconfig(struct uart_8250_port *up) { @@ -190,6 +192,7 @@ void rsa_autoconfig(struct uart_8250_port *up) if (__rsa_enable(up)) up->port.type = PORT_RSA; } +EXPORT_SYMBOL_GPL_FOR_MODULES(rsa_autoconfig, "8250_base"); void rsa_reset(struct uart_8250_port *up) { @@ -198,6 +201,7 @@ void rsa_reset(struct uart_8250_port *up) serial_out(up, UART_RSA_FRR, 0); } +EXPORT_SYMBOL_GPL_FOR_MODULES(rsa_reset, "8250_base"); #ifdef CONFIG_SERIAL_8250_DEPRECATED_OPTIONS #ifndef MODULE