kernel_5.10 no rt

hc

2023-12-11 6778948f9de86c3cfaf36725a7c87dcff9ba247f

 kernel/drivers/tty/serial/amba-pl010.c
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@@ -15,10 +15,6 @@
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  * and hooked into this driver.
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  */
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-#if defined(CONFIG_SERIAL_AMBA_PL010_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
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-#define SUPPORT_SYSRQ
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-#endif
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-
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 #include <linux/module.h>
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 #include <linux/ioport.h>
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 #include <linux/init.h>
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@@ -725,6 +721,7 @@
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 	uap->port.iotype = UPIO_MEM;
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 	uap->port.irq = dev->irq[0];
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 	uap->port.fifosize = 16;
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+	uap->port.has_sysrq = IS_ENABLED(CONFIG_SERIAL_AMBA_PL010_CONSOLE);
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 	uap->port.ops = &amba_pl010_pops;
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 	uap->port.flags = UPF_BOOT_AUTOCONF;
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 	uap->port.line = i;
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@@ -754,7 +751,7 @@
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 	return ret;
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 }
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-static int pl010_remove(struct amba_device *dev)
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+static void pl010_remove(struct amba_device *dev)
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 {
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 	struct uart_amba_port *uap = amba_get_drvdata(dev);
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 	int i;
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@@ -770,8 +767,6 @@
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 	if (!busy)
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 		uart_unregister_driver(&amba_reg);
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-
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-	return 0;
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 }
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 #ifdef CONFIG_PM_SLEEP