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2019-06-19treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500Thomas Gleixner1-4/+1
Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <[email protected]> Reviewed-by: Enrico Weigelt <[email protected]> Reviewed-by: Kate Stewart <[email protected]> Reviewed-by: Allison Randal <[email protected]> Cc: [email protected] Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2019-02-26ARM: 8844/1: use unified assembler in assembly filesStefan Agner1-1/+1
Use unified assembler syntax (UAL) in assembly files. Divided syntax is considered deprecated. This will also allow to build the kernel using LLVM's integrated assembler. Signed-off-by: Stefan Agner <[email protected]> Acked-by: Nicolas Pitre <[email protected]> Signed-off-by: Russell King <[email protected]>
2016-11-23Revert "arm: move exports to definitions"Russell King1-4/+0
This reverts commit 4dd1837d7589f468ed109556513f476e7a7f9121. Moving the exports for assembly code into the assembly files breaks KSYM trimming, but also breaks modversions. While fixing the KSYM trimming is trivial, fixing modversions brings us to a technically worse position that we had prior to the above change: - We end up with the prototype definitions divorsed from everything else, which means that adding or removing assembly level ksyms become more fragile: * if adding a new assembly ksyms export, a missed prototype in asm-prototypes.h results in a successful build if no module in the selected configuration makes use of the symbol. * when removing a ksyms export, asm-prototypes.h will get forgotten, with armksyms.c, you'll get a build error if you forget to touch the file. - We end up with the same amount of include files and prototypes, they're just in a header file instead of a .c file with their exports. As for lines of code, we don't get much of a size reduction: (original commit) 47 files changed, 131 insertions(+), 208 deletions(-) (fix for ksyms trimming) 7 files changed, 18 insertions(+), 5 deletions(-) (two fixes for modversions) 1 file changed, 34 insertions(+) 3 files changed, 7 insertions(+), 2 deletions(-) which results in a net total of only 25 lines deleted. As there does not seem to be much benefit from this change of approach, revert the change. Signed-off-by: Russell King <[email protected]>
2016-08-07arm: move exports to definitionsAl Viro1-0/+4
Signed-off-by: Al Viro <[email protected]>
2015-10-03ARM: 8438/1: Add unwinding to __clear_user_std()Stephen Boyd1-0/+4
Add unwinding annotations so that unwinding from this function works properly. Signed-off-by: Stephen Boyd <[email protected]> Signed-off-by: Russell King <[email protected]>
2015-08-25ARM: uaccess: provide uaccess_save_and_enable() and uaccess_restore()Russell King1-3/+3
Provide uaccess_save_and_enable() and uaccess_restore() to permit control of userspace visibility to the kernel, and hook these into the appropriate places in the kernel where we need to access userspace. Signed-off-by: Russell King <[email protected]>
2015-03-29ARM: 8322/1: keep .text and .fixup regions closer togetherArd Biesheuvel1-1/+1
This moves all fixup snippets to the .text.fixup section, which is a special section that gets emitted along with the .text section for each input object file, i.e., the snippets are kept much closer to the code they refer to, which helps prevent linker failure on large kernels. Acked-by: Nicolas Pitre <[email protected]> Signed-off-by: Ard Biesheuvel <[email protected]> Signed-off-by: Russell King <[email protected]>
2010-05-08ARM: 6110/1: Fix Thumb-2 kernel builds when UACCESS_WITH_MEMCPY is enabledCatalin Marinas1-0/+1
The patch adds the ENDPROC declarations for the __copy_to_user_std and __clear_user_std functions. Without these, the compiler generates BXL to ARM when compiling the kernel in Thumb-2 mode. Reported-by: Kyungmin Park <[email protected]> Tested-by: Kyungmin Park <[email protected]> Signed-off-by: Catalin Marinas <[email protected]> Acked-by: Nicolas Pitre <[email protected]> Signed-off-by: Russell King <[email protected]>
2010-04-21ARM: fix build error in arch/arm/kernel/process.cRussell King1-2/+2
/tmp/ccJ3ssZW.s: Assembler messages: /tmp/ccJ3ssZW.s:1952: Error: can't resolve `.text' {.text section} - `.LFB1077' This is caused because: .section .data .section .text .section .text .previous does not return us to the .text section, but the .data section; this makes use of .previous dangerous if the ordering of previous sections is not known. Fix up the other users of .previous; .pushsection and .popsection are a safer pairing to use than .section and .previous. Signed-off-by: Russell King <[email protected]>
2009-07-24Thumb-2: Implement the unified arch/arm/lib functionsCatalin Marinas1-8/+7
This patch adds the ARM/Thumb-2 unified support for the arch/arm/lib/* files. Signed-off-by: Catalin Marinas <[email protected]>
2009-05-29[ARM] allow for alternative __copy_to_user/__clear_user implementationsNicolas Pitre1-1/+2
This allows for optional alternative implementations of __copy_to_user and __clear_user, with a possible runtime fallback to the standard version when the alternative provides no gain over that standard version. This is done by making the standard __copy_to_user into a weak alias for the symbol __copy_to_user_std. Same thing for __clear_user. Those two functions are particularly good candidates to have alternative implementations for, since they rely on the STRT instruction which has lower performances than STM instructions on some CPU cores such as the ARM1176 and Marvell Feroceon. Signed-off-by: Nicolas Pitre <[email protected]>
2008-09-01[ARM] 5232/1: Do not post-index STRT instruction in clear_user.SCatalin Marinas1-1/+1
The last strnebt instruction has a post-index of 1 but the address register is set to 0 in the next instruction, so no need for post-indexing. Signed-off-by: Catalin Marinas <[email protected]> Signed-off-by: Russell King <[email protected]>
2008-09-01[ARM] 5227/1: Add the ENDPROC declarations to the .S filesCatalin Marinas1-0/+1
This declaration specifies the "function" type and size for various assembly functions, mainly needed for generating the correct branch instructions in Thumb-2. Signed-off-by: Catalin Marinas <[email protected]> Signed-off-by: Russell King <[email protected]>
2006-06-28[ARM] Remove the __arch_* layer from uaccess.hRussell King1-2/+2
Back in the days when we had armo (26-bit) and armv (32-bit) combined, we had an additional layer to the uaccess macros to ensure correct typing. Since we no longer have 26-bit in this tree, we no longer need this layer, so eliminate it. Signed-off-by: Russell King <[email protected]>
2006-06-25[ARM] Remove LOADREGS macroRussell King1-2/+2
As for RETINSTR, LOADREGS is a left-over from the 26-bit days. Remove it. Signed-off-by: Russell King <[email protected]>
2005-11-01[ARM] 2946/2: split --arch_clear_user() out of lib/uaccess.SNicolas Pitre1-0/+52
Patch from Nicolas Pitre Required for future enhancement patches. Signed-off-by: Nicolas Pitre <[email protected]> Signed-off-by: Russell King <[email protected]>
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