From cb3592be272d83011051dc49f4326355c01f1e1f Mon Sep 17 00:00:00 2001 From: Arjan van de Ven Date: Mon, 28 Nov 2005 21:04:11 +0000 Subject: [SERIAL] mark several serial tables const This patch marks a few serial data structures const, moving them to .rodata where they won't false-share cachelines with things that get written to. Signed-off-by: Arjan van de Ven Signed-off-by: Russell King --- drivers/serial/8250.c | 2 +- drivers/serial/8250_pci.c | 2 +- drivers/serial/serial_core.c | 2 +- drivers/serial/serial_cs.c | 6 +++--- 4 files changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c index e08510d09ff..d2bcd1f87cd 100644 --- a/drivers/serial/8250.c +++ b/drivers/serial/8250.c @@ -102,7 +102,7 @@ static unsigned int share_irqs = SERIAL8250_SHARE_IRQS; #define SERIAL_PORT_DFNS #endif -static struct old_serial_port old_serial_port[] = { +static const struct old_serial_port old_serial_port[] = { SERIAL_PORT_DFNS /* defined in asm/serial.h */ }; diff --git a/drivers/serial/8250_pci.c b/drivers/serial/8250_pci.c index 5c3c03932d6..8d92adfbb8b 100644 --- a/drivers/serial/8250_pci.c +++ b/drivers/serial/8250_pci.c @@ -468,7 +468,7 @@ static unsigned short timedia_eight_port[] = { 0x9167, 0x9168, 0xA066, 0xA167, 0xA168, 0 }; -static struct timedia_struct { +static const struct timedia_struct { int num; unsigned short *ids; } timedia_data[] = { diff --git a/drivers/serial/serial_core.c b/drivers/serial/serial_core.c index 2331296e1e1..c17d680e3f0 100644 --- a/drivers/serial/serial_core.c +++ b/drivers/serial/serial_core.c @@ -1779,7 +1779,7 @@ struct baud_rates { unsigned int cflag; }; -static struct baud_rates baud_rates[] = { +static const struct baud_rates baud_rates[] = { { 921600, B921600 }, { 460800, B460800 }, { 230400, B230400 }, diff --git a/drivers/serial/serial_cs.c b/drivers/serial/serial_cs.c index 2c7d3ef76e8..7ce0c7e66d3 100644 --- a/drivers/serial/serial_cs.c +++ b/drivers/serial/serial_cs.c @@ -85,7 +85,7 @@ struct multi_id { int multi; /* 1 = multifunction, > 1 = # ports */ }; -static struct multi_id multi_id[] = { +static const struct multi_id multi_id[] = { { MANFID_OMEGA, PRODID_OMEGA_QSP_100, 4 }, { MANFID_QUATECH, PRODID_QUATECH_DUAL_RS232, 2 }, { MANFID_QUATECH, PRODID_QUATECH_DUAL_RS232_D1, 2 }, @@ -354,8 +354,8 @@ next_tuple(client_handle_t handle, tuple_t * tuple, cisparse_t * parse) static int simple_config(dev_link_t *link) { - static kio_addr_t base[5] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8, 0x0 }; - static int size_table[2] = { 8, 16 }; + static const kio_addr_t base[5] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8, 0x0 }; + static const int size_table[2] = { 8, 16 }; client_handle_t handle = link->handle; struct serial_info *info = link->priv; struct serial_cfg_mem *cfg_mem; -- cgit v1.2.3