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| author |   Christophe JAILLET <christophe.jaillet@wanadoo.fr> | 2023-02-17 21:22:57 +0100 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-03-09 17:17:10 +0100 |
| commit | 85bce38a7e1f392f5051e67fd5fcfbffe71e9b81 (patch) | |
| tree | b35126c7199a8c01c00fc9fc730dbb453cd3f6c1 | |
| parent | serial: stm32: Re-assert RTS/DE GPIO in RS485 mode only if more data are transmitted (diff) | |
| download | wireguard-linux-85bce38a7e1f392f5051e67fd5fcfbffe71e9b81.tar.xz wireguard-linux-85bce38a7e1f392f5051e67fd5fcfbffe71e9b81.zip | |
serial: 8250: Reorder fields in 'struct plat_serial8250_port'
Group some variables based on their sizes to reduce hole and avoid padding.
On x86_64, this shrinks the size of 'struct plat_serial8250_port'
from 144 to 128 bytes.
It saves a few bytes of memory.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/f3cb1efe1454e0615840fd331ee335bc441589a9.1676665358.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | include/linux/serial_8250.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/serial_8250.h b/include/linux/serial_8250.h index 19376bee9667..741ed4807a9c 100644 --- a/include/linux/serial_8250.h +++ b/include/linux/serial_8250.h @@ -18,16 +18,16 @@ struct plat_serial8250_port { unsigned long iobase; /* io base address */ void __iomem *membase; /* ioremap cookie or NULL */ resource_size_t mapbase; /* resource base */ + unsigned int uartclk; /* UART clock rate */ unsigned int irq; /* interrupt number */ unsigned long irqflags; /* request_irq flags */ - unsigned int uartclk; /* UART clock rate */ void *private_data; unsigned char regshift; /* register shift */ unsigned char iotype; /* UPIO_* */ unsigned char hub6; unsigned char has_sysrq; /* supports magic SysRq */ - upf_t flags; /* UPF_* flags */ unsigned int type; /* If UPF_FIXED_TYPE */ + upf_t flags; /* UPF_* flags */ unsigned int (*serial_in)(struct uart_port *, int); void (*serial_out)(struct uart_port *, int, int); void (*set_termios)(struct uart_port *, |