[Deepin-Kernel-SIG] [linux 6.6.y] [Upstream] Sync some docs and code clean from mainline

Documentation/gpu/i915.rst

@@ -267,19 +267,22 @@ i915 driver.
 Intel GPU Basics
 ----------------
 
-An Intel GPU has multiple engines. There are several engine types.
-
-- RCS engine is for rendering 3D and performing compute, this is named
-  `I915_EXEC_RENDER` in user space.
-- BCS is a blitting (copy) engine, this is named `I915_EXEC_BLT` in user
-  space.
-- VCS is a video encode and decode engine, this is named `I915_EXEC_BSD`
-  in user space
-- VECS is video enhancement engine, this is named `I915_EXEC_VEBOX` in user
-  space.
-- The enumeration `I915_EXEC_DEFAULT` does not refer to specific engine;
-  instead it is to be used by user space to specify a default rendering
-  engine (for 3D) that may or may not be the same as RCS.
+An Intel GPU has multiple engines. There are several engine types:
+
+- Render Command Streamer (RCS). An engine for rendering 3D and
+  performing compute.
+- Blitting Command Streamer (BCS). An engine for performing blitting and/or
+  copying operations.
+- Video Command Streamer. An engine used for video encoding and decoding. Also
+  sometimes called 'BSD' in hardware documentation.
+- Video Enhancement Command Streamer (VECS). An engine for video enhancement.
+  Also sometimes called 'VEBOX' in hardware documentation.
+- Compute Command Streamer (CCS). An engine that has access to the media and
+  GPGPU pipelines, but not the 3D pipeline.
+- Graphics Security Controller (GSCCS). A dedicated engine for internal
+  communication with GSC controller on security related tasks like
+  High-bandwidth Digital Content Protection (HDCP), Protected Xe Path (PXP),
+  and HuC firmware authentication.
 
 The Intel GPU family is a family of integrated GPU's using Unified
 Memory Access. For having the GPU "do work", user space will feed the

Documentation/usb/gadget_uvc.rst

@@ -126,7 +126,7 @@ might do:
 	create_frame 1920 1080 uncompressed yuyv
 
 The only uncompressed format currently supported is YUYV, which is detailed at
-Documentation/userspace-api/media/v4l/pixfmt-packed.yuv.rst.
+Documentation/userspace-api/media/v4l/pixfmt-packed-yuv.rst.
 
 Color Matching Descriptors
 ~~~~~~~~~~~~~~~~~~~~~~~~~~

drivers/scsi/mpt3sas/mpi/mpi2_cnfg.h

@@ -990,7 +990,7 @@ typedef struct _MPI2_CONFIG_PAGE_IO_UNIT_1 {
 
 /*
  *Host code (drivers, BIOS, utilities, etc.) should leave this define set to
- *one and check the value returned for GPIOCount at runtime.
+ *36 and check the value returned for GPIOCount at runtime.
  */
 #ifndef MPI2_IO_UNIT_PAGE_3_GPIO_VAL_MAX
 #define MPI2_IO_UNIT_PAGE_3_GPIO_VAL_MAX    (36)

drivers/thermal/thermal_acpi.c

@@ -8,8 +8,7 @@
  */
 #include <linux/acpi.h>
 #include <linux/units.h>
-
-#include "thermal_core.h"
+#include <linux/thermal.h>
 
 /*
  * Minimum temperature for full military grade is 218°K (-55°C) and

drivers/tty/serial/samsung_tty.c

@@ -64,7 +64,6 @@
 #define RXSTAT_DUMMY_READ (0x10000000)
 
 enum s3c24xx_port_type {
-	TYPE_S3C24XX,
 	TYPE_S3C6400,
 	TYPE_APPLE_S5L,
 };
@@ -128,8 +127,6 @@ struct s3c24xx_uart_dma {
 };
 
 struct s3c24xx_uart_port {
-	unsigned char			rx_claimed;
-	unsigned char			tx_claimed;
 	unsigned char			rx_enabled;
 	unsigned char			tx_enabled;
 	unsigned int			pm_level;
@@ -1165,29 +1162,6 @@ static void s3c24xx_serial_release_dma(struct s3c24xx_uart_port *p)
 	}
 }
 
-static void s3c24xx_serial_shutdown(struct uart_port *port)
-{
-	struct s3c24xx_uart_port *ourport = to_ourport(port);
-
-	if (ourport->tx_claimed) {
-		free_irq(ourport->tx_irq, ourport);
-		ourport->tx_enabled = 0;
-		ourport->tx_claimed = 0;
-		ourport->tx_mode = 0;
-	}
-
-	if (ourport->rx_claimed) {
-		free_irq(ourport->rx_irq, ourport);
-		ourport->rx_claimed = 0;
-		ourport->rx_enabled = 0;
-	}
-
-	if (ourport->dma)
-		s3c24xx_serial_release_dma(ourport);
-
-	ourport->tx_in_progress = 0;
-}
-
 static void s3c64xx_serial_shutdown(struct uart_port *port)
 {
 	struct s3c24xx_uart_port *ourport = to_ourport(port);
@@ -1233,48 +1207,6 @@ static void apple_s5l_serial_shutdown(struct uart_port *port)
 	ourport->tx_in_progress = 0;
 }
 
-static int s3c24xx_serial_startup(struct uart_port *port)
-{
-	struct s3c24xx_uart_port *ourport = to_ourport(port);
-	int ret;
-
-	ourport->rx_enabled = 1;
-
-	ret = request_irq(ourport->rx_irq, s3c24xx_serial_rx_irq, 0,
-			  s3c24xx_serial_portname(port), ourport);
-
-	if (ret != 0) {
-		dev_err(port->dev, "cannot get irq %d\n", ourport->rx_irq);
-		return ret;
-	}
-
-	ourport->rx_claimed = 1;
-
-	dev_dbg(port->dev, "requesting tx irq...\n");
-
-	ourport->tx_enabled = 1;
-
-	ret = request_irq(ourport->tx_irq, s3c24xx_serial_tx_irq, 0,
-			  s3c24xx_serial_portname(port), ourport);
-
-	if (ret) {
-		dev_err(port->dev, "cannot get irq %d\n", ourport->tx_irq);
-		goto err;
-	}
-
-	ourport->tx_claimed = 1;
-
-	/* the port reset code should have done the correct
-	 * register setup for the port controls
-	 */
-
-	return ret;
-
-err:
-	s3c24xx_serial_shutdown(port);
-	return ret;
-}
-
 static int s3c64xx_serial_startup(struct uart_port *port)
 {
 	struct s3c24xx_uart_port *ourport = to_ourport(port);
@@ -1691,8 +1623,6 @@ static const char *s3c24xx_serial_type(struct uart_port *port)
 	const struct s3c24xx_uart_port *ourport = to_ourport(port);
 
 	switch (ourport->info->type) {
-	case TYPE_S3C24XX:
-		return "S3C24XX";
 	case TYPE_S3C6400:
 		return "S3C6400/10";
 	case TYPE_APPLE_S5L:
@@ -1752,27 +1682,6 @@ static void s3c24xx_serial_put_poll_char(struct uart_port *port,
 			 unsigned char c);
 #endif
 
-static const struct uart_ops s3c24xx_serial_ops = {
-	.pm		= s3c24xx_serial_pm,
-	.tx_empty	= s3c24xx_serial_tx_empty,
-	.get_mctrl	= s3c24xx_serial_get_mctrl,
-	.set_mctrl	= s3c24xx_serial_set_mctrl,
-	.stop_tx	= s3c24xx_serial_stop_tx,
-	.start_tx	= s3c24xx_serial_start_tx,
-	.stop_rx	= s3c24xx_serial_stop_rx,
-	.break_ctl	= s3c24xx_serial_break_ctl,
-	.startup	= s3c24xx_serial_startup,
-	.shutdown	= s3c24xx_serial_shutdown,
-	.set_termios	= s3c24xx_serial_set_termios,
-	.type		= s3c24xx_serial_type,
-	.config_port	= s3c24xx_serial_config_port,
-	.verify_port	= s3c24xx_serial_verify_port,
-#if defined(CONFIG_SERIAL_SAMSUNG_CONSOLE) && defined(CONFIG_CONSOLE_POLL)
-	.poll_get_char = s3c24xx_serial_get_poll_char,
-	.poll_put_char = s3c24xx_serial_put_poll_char,
-#endif
-};
-
 static const struct uart_ops s3c64xx_serial_ops = {
 	.pm		= s3c24xx_serial_pm,
 	.tx_empty	= s3c24xx_serial_tx_empty,
@@ -1835,7 +1744,6 @@ static void s3c24xx_serial_init_port_default(int index) {
 	port->iotype = UPIO_MEM;
 	port->uartclk = 0;
 	port->fifosize = 16;
-	port->ops = &s3c24xx_serial_ops;
 	port->flags = UPF_BOOT_AUTOCONF;
 	port->line = index;
 }
@@ -1953,16 +1861,6 @@ static int s3c24xx_serial_init_port(struct s3c24xx_uart_port *ourport,
 		ourport->tx_irq = ret + 1;
 	}
 
-	switch (ourport->info->type) {
-	case TYPE_S3C24XX:
-		ret = platform_get_irq(platdev, 1);
-		if (ret > 0)
-			ourport->tx_irq = ret;
-		break;
-	default:
-		break;
-	}
-
 	/*
 	 * DMA is currently supported only on DT platforms, if DMA properties
 	 * are specified.
@@ -2082,9 +1980,6 @@ static int s3c24xx_serial_probe(struct platform_device *pdev)
 			&ourport->drv_data->def_cfg;
 
 	switch (ourport->info->type) {
-	case TYPE_S3C24XX:
-		ourport->port.ops = &s3c24xx_serial_ops;
-		break;
 	case TYPE_S3C6400:
 		ourport->port.ops = &s3c64xx_serial_ops;
 		break;

drivers/video/fbdev/omap2/omapfb/vrfb.c

@@ -368,17 +368,10 @@ static int __init vrfb_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static void __exit vrfb_remove(struct platform_device *pdev)
-{
-	vrfb_loaded = false;
-}
-
 static struct platform_driver vrfb_driver = {
 	.driver.name	= "omapvrfb",
-	.remove		= __exit_p(vrfb_remove),
 };
-
-module_platform_driver_probe(vrfb_driver, vrfb_probe);
+builtin_platform_driver_probe(vrfb_driver, vrfb_probe);
 
 MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@ti.com>");
 MODULE_DESCRIPTION("OMAP VRFB");

include/linux/seq_buf.h

@@ -44,7 +44,7 @@ seq_buf_init(struct seq_buf *s, char *buf, unsigned int size)
 
 /*
  * seq_buf have a buffer that might overflow. When this happens
- * the len and size are set to be equal.
+ * len is set to be greater than size.
  */
 static inline bool
 seq_buf_has_overflowed(struct seq_buf *s)

security/keys/internal.h

@@ -109,13 +109,6 @@ extern void __key_link_end(struct key *keyring,
 extern key_ref_t find_key_to_update(key_ref_t keyring_ref,
 				    const struct keyring_index_key *index_key);
 
-extern struct key *keyring_search_instkey(struct key *keyring,
-					  key_serial_t target_id);
-
-extern int iterate_over_keyring(const struct key *keyring,
-				int (*func)(const struct key *key, void *data),
-				void *data);
-
 struct keyring_search_context {
 	struct keyring_index_key index_key;
 	const struct cred	*cred;

tools/verification/dot2/dot2k

@@ -15,8 +15,6 @@ if __name__ == '__main__':
     import os
     import platform
     import sys
-    import sys
-    import argparse
 
     parser = argparse.ArgumentParser(description='transform .dot file into kernel rv monitor')
     parser.add_argument('-d', "--dot", dest="dot_file", required=True)