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	Backport driver from upcoming Linux 6.10 and put a pending fix on top to make sure the netdev trigger offloading behaves as expected. Signed-off-by: Daniel Golle <daniel@makrotopia.org>
		
			
				
	
	
		
			162 lines
		
	
	
		
			4.8 KiB
		
	
	
	
		
			Diff
		
	
	
	
	
	
			
		
		
	
	
			162 lines
		
	
	
		
			4.8 KiB
		
	
	
	
		
			Diff
		
	
	
	
	
	
| From 66a5c40f60f5d88ad8d47ba6a4ba05892853fa1f Mon Sep 17 00:00:00 2001
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| From: Tanzir Hasan <tanzirh@google.com>
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| Date: Tue, 26 Dec 2023 18:00:00 +0000
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| Subject: [PATCH] kernel.h: removed REPEAT_BYTE from kernel.h
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| 
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| This patch creates wordpart.h and includes it in asm/word-at-a-time.h
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| for all architectures. WORD_AT_A_TIME_CONSTANTS depends on kernel.h
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| because of REPEAT_BYTE. Moving this to another header and including it
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| where necessary allows us to not include the bloated kernel.h. Making
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| this implicit dependency on REPEAT_BYTE explicit allows for later
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| improvements in the lib/string.c inclusion list.
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| 
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| Suggested-by: Al Viro <viro@zeniv.linux.org.uk>
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| Suggested-by: Andy Shevchenko <andy.shevchenko@gmail.com>
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| Signed-off-by: Tanzir Hasan <tanzirh@google.com>
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| Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
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| Link: https://lore.kernel.org/r/20231226-libstringheader-v6-1-80aa08c7652c@google.com
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| Signed-off-by: Kees Cook <keescook@chromium.org>
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| ---
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|  arch/arm/include/asm/word-at-a-time.h     |  3 ++-
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|  arch/arm64/include/asm/word-at-a-time.h   |  3 ++-
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|  arch/powerpc/include/asm/word-at-a-time.h |  4 ++--
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|  arch/riscv/include/asm/word-at-a-time.h   |  3 ++-
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|  arch/s390/include/asm/word-at-a-time.h    |  3 ++-
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|  arch/sh/include/asm/word-at-a-time.h      |  2 ++
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|  arch/x86/include/asm/word-at-a-time.h     |  3 ++-
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|  arch/x86/kvm/mmu/mmu.c                    |  1 +
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|  fs/namei.c                                |  2 +-
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|  include/asm-generic/word-at-a-time.h      |  3 ++-
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|  include/linux/kernel.h                    |  8 --------
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|  include/linux/wordpart.h                  | 13 +++++++++++++
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|  12 files changed, 31 insertions(+), 17 deletions(-)
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|  create mode 100644 include/linux/wordpart.h
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| 
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| --- a/arch/arm/include/asm/word-at-a-time.h
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| +++ b/arch/arm/include/asm/word-at-a-time.h
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| @@ -8,7 +8,8 @@
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|   * Little-endian word-at-a-time zero byte handling.
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|   * Heavily based on the x86 algorithm.
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|   */
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| -#include <linux/kernel.h>
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| +#include <linux/bitops.h>
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| +#include <linux/wordpart.h>
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|  
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|  struct word_at_a_time {
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|  	const unsigned long one_bits, high_bits;
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| --- a/arch/arm64/include/asm/word-at-a-time.h
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| +++ b/arch/arm64/include/asm/word-at-a-time.h
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| @@ -9,7 +9,8 @@
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|  
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|  #ifndef __AARCH64EB__
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|  
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| -#include <linux/kernel.h>
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| +#include <linux/bitops.h>
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| +#include <linux/wordpart.h>
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|  
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|  struct word_at_a_time {
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|  	const unsigned long one_bits, high_bits;
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| --- a/arch/powerpc/include/asm/word-at-a-time.h
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| +++ b/arch/powerpc/include/asm/word-at-a-time.h
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| @@ -4,8 +4,8 @@
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|  /*
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|   * Word-at-a-time interfaces for PowerPC.
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|   */
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| -
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| -#include <linux/kernel.h>
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| +#include <linux/bitops.h>
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| +#include <linux/wordpart.h>
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|  #include <asm/asm-compat.h>
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|  #include <asm/extable.h>
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|  
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| --- a/arch/sh/include/asm/word-at-a-time.h
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| +++ b/arch/sh/include/asm/word-at-a-time.h
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| @@ -5,6 +5,8 @@
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|  #ifdef CONFIG_CPU_BIG_ENDIAN
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|  # include <asm-generic/word-at-a-time.h>
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|  #else
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| +#include <linux/bitops.h>
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| +#include <linux/wordpart.h>
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|  /*
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|   * Little-endian version cribbed from x86.
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|   */
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| --- a/arch/x86/include/asm/word-at-a-time.h
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| +++ b/arch/x86/include/asm/word-at-a-time.h
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| @@ -2,7 +2,8 @@
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|  #ifndef _ASM_WORD_AT_A_TIME_H
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|  #define _ASM_WORD_AT_A_TIME_H
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|  
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| -#include <linux/kernel.h>
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| +#include <linux/bitops.h>
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| +#include <linux/wordpart.h>
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|  
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|  /*
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|   * This is largely generic for little-endian machines, but the
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| --- a/arch/x86/kvm/mmu/mmu.c
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| +++ b/arch/x86/kvm/mmu/mmu.c
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| @@ -44,6 +44,7 @@
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|  #include <linux/kern_levels.h>
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|  #include <linux/kstrtox.h>
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|  #include <linux/kthread.h>
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| +#include <linux/wordpart.h>
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|  
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|  #include <asm/page.h>
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|  #include <asm/memtype.h>
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| --- a/fs/namei.c
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| +++ b/fs/namei.c
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| @@ -17,8 +17,8 @@
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|  
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|  #include <linux/init.h>
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|  #include <linux/export.h>
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| -#include <linux/kernel.h>
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|  #include <linux/slab.h>
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| +#include <linux/wordpart.h>
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|  #include <linux/fs.h>
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|  #include <linux/namei.h>
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|  #include <linux/pagemap.h>
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| --- a/include/asm-generic/word-at-a-time.h
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| +++ b/include/asm-generic/word-at-a-time.h
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| @@ -2,7 +2,8 @@
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|  #ifndef _ASM_WORD_AT_A_TIME_H
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|  #define _ASM_WORD_AT_A_TIME_H
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|  
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| -#include <linux/kernel.h>
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| +#include <linux/bitops.h>
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| +#include <linux/wordpart.h>
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|  #include <asm/byteorder.h>
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|  
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|  #ifdef __BIG_ENDIAN
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| --- a/include/linux/kernel.h
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| +++ b/include/linux/kernel.h
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| @@ -36,14 +36,6 @@
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|  
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|  #define STACK_MAGIC	0xdeadbeef
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|  
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| -/**
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| - * REPEAT_BYTE - repeat the value @x multiple times as an unsigned long value
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| - * @x: value to repeat
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| - *
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| - * NOTE: @x is not checked for > 0xff; larger values produce odd results.
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| - */
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| -#define REPEAT_BYTE(x)	((~0ul / 0xff) * (x))
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| -
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|  /* generic data direction definitions */
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|  #define READ			0
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|  #define WRITE			1
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| --- /dev/null
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| +++ b/include/linux/wordpart.h
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| @@ -0,0 +1,13 @@
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| +/* SPDX-License-Identifier: GPL-2.0 */
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| +
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| +#ifndef _LINUX_WORDPART_H
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| +#define _LINUX_WORDPART_H
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| +/**
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| + * REPEAT_BYTE - repeat the value @x multiple times as an unsigned long value
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| + * @x: value to repeat
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| + *
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| + * NOTE: @x is not checked for > 0xff; larger values produce odd results.
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| + */
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| +#define REPEAT_BYTE(x)	((~0ul / 0xff) * (x))
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| +
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| +#endif // _LINUX_WORDPART_H
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