similar to: Patch "x86/paravirt: Make native_save_fl() extern inline" has been added to the 4.14-stable tree

4.14-stable review patch. If anyone has any objections, please let me know. ------------------ From: Nick Desaulniers <ndesaulniers at google.com> commit d0a8d9378d16eb3c69bd8e6d23779fbdbee3a8c7 upstream. native_save_fl() is marked static inline, but by using it as a function pointer in arch/x86/kernel/paravirt.c, it MUST be outlined. paravirt's use of native_save_fl() also

This is a note to let you know that I've just added the patch titled x86/paravirt: Make native_save_fl() extern inline to the 4.17-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: x86-paravirt-make-native_save_fl-extern-inline.patch and it can be found in the queue-4.17 subdirectory.

This is a note to let you know that I've just added the patch titled x86/paravirt: Make native_save_fl() extern inline to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: x86-paravirt-make-native_save_fl-extern-inline.patch and it can be found in the queue-4.9 subdirectory.

This is a note to let you know that I've just added the patch titled x86/paravirt: Make native_save_fl() extern inline to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: x86-paravirt-make-native_save_fl-extern-inline.patch and it can be found in the queue-4.4 subdirectory.

4.17-stable review patch. If anyone has any objections, please let me know. ------------------ From: Nick Desaulniers <ndesaulniers at google.com> commit d0a8d9378d16eb3c69bd8e6d23779fbdbee3a8c7 upstream. native_save_fl() is marked static inline, but by using it as a function pointer in arch/x86/kernel/paravirt.c, it MUST be outlined. paravirt's use of native_save_fl() also

4.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: Nick Desaulniers <ndesaulniers at google.com> commit d0a8d9378d16eb3c69bd8e6d23779fbdbee3a8c7 upstream. native_save_fl() is marked static inline, but by using it as a function pointer in arch/x86/kernel/paravirt.c, it MUST be outlined. paravirt's use of native_save_fl() also requires

4.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Nick Desaulniers <ndesaulniers at google.com> commit d0a8d9378d16eb3c69bd8e6d23779fbdbee3a8c7 upstream. native_save_fl() is marked static inline, but by using it as a function pointer in arch/x86/kernel/paravirt.c, it MUST be outlined. paravirt's use of native_save_fl() also requires

* Nick Desaulniers <ndesaulniers at google.com> wrote: > On Thu, Jun 21, 2018 at 7:24 PM Ingo Molnar <mingo at kernel.org> wrote: > > * Nick Desaulniers <ndesaulniers at google.com> wrote: > > > > > native_save_fl() is marked static inline, but by using it as > > > a function pointer in arch/x86/kernel/paravirt.c, it MUST be outlined. > >

This is a note to let you know that I've just added the patch titled compiler-gcc.h: Add __attribute__((gnu_inline)) to all inline declarations to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: compiler-gcc.h-add-__attribute__-gnu_inline-to-all-inline-declarations.patch

* Nick Desaulniers <ndesaulniers at google.com> wrote: > native_save_fl() is marked static inline, but by using it as > a function pointer in arch/x86/kernel/paravirt.c, it MUST be outlined. > --- a/arch/x86/include/asm/irqflags.h > +++ b/arch/x86/include/asm/irqflags.h > @@ -13,7 +13,7 @@ > * Interrupt control: > */ > > -static inline unsigned long

On 13/06/18 23:05, Nick Desaulniers wrote: > paravirt depends on a custom calling convention (callee saved), but > expects this from a static inline function that it then forces to be > outlined. This is problematic because different compilers or flags can > then add a stack guard that violates the calling conventions. > > Uses extern inline with the out-of-line definition in

4.14-stable review patch. If anyone has any objections, please let me know. ------------------ From: H. Peter Anvin <hpa at linux.intel.com> commit 0e2e160033283e20f688d8bad5b89460cc5bfcc4 upstream. i386 and x86-64 uses different registers for arguments; make them available so we don't have to #ifdef in the actual code. Native size and specified size (q, l, w, b) versions are

On June 1, 2018 9:55:49 AM PDT, Nick Desaulniers <ndesaulniers at google.com> wrote: >The top level Makefile explicitly sets the C standard used in the >kernel >to gnu89. By overriding KBUILD_CFLAGS, the C standard used for this >subdir is now implicit based on compiler and compiler version. GCC >changes this implicit default from gnu89 to gnu11 in v5.1. > >This implies

* Nick Desaulniers <ndesaulniers at google.com> wrote: > On Thu, Jun 14, 2018 at 5:17 PM H. Peter Anvin <hpa at zytor.com> wrote: > > > > On 06/14/18 13:59, Nick Desaulniers wrote: > > > On Thu, Jun 14, 2018 at 1:48 PM H. Peter Anvin <hpa at zytor.com> wrote: > > >> > > >> On 06/13/18 14:05, Nick Desaulniers wrote: > >

This is a note to let you know that I've just added the patch titled x86/asm: Add _ASM_ARG* constants for argument registers to <asm/asm.h> to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: x86-asm-add-_asm_arg-constants-for-argument-registers-to-asm-asm.h.patch and

This is a note to let you know that I've just added the patch titled compiler-gcc.h: Add __attribute__((gnu_inline)) to all inline declarations to the 4.17-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: compiler-gcc.h-add-__attribute__-gnu_inline-to-all-inline-declarations.patch

This is a note to let you know that I've just added the patch titled compiler-gcc.h: Add __attribute__((gnu_inline)) to all inline declarations to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: compiler-gcc.h-add-__attribute__-gnu_inline-to-all-inline-declarations.patch and

4.14-stable review patch. If anyone has any objections, please let me know. ------------------ From: Nick Desaulniers <ndesaulniers at google.com> commit d03db2bc26f0e4a6849ad649a09c9c73fccdc656 upstream. Functions marked extern inline do not emit an externally visible function when the gnu89 C standard is used. Some KBUILD Makefiles overwrite KBUILD_CFLAGS. This is an issue for GCC

On 06/05/18 10:05, Nick Desaulniers wrote: > + > +/* > + * void native_restore_fl(unsigned long flags) > + * %rdi: flags > + */ > +ENTRY(native_restore_fl) > + push %_ASM_DI > + popf > + ret > +ENDPROC(native_restore_fl) > +EXPORT_SYMBOL(native_restore_fl) > To work on i386, this would have to be %_ASM_AX in that case. Something like this added to

On 06/05/18 10:05, Nick Desaulniers wrote: > + > +/* > + * void native_restore_fl(unsigned long flags) > + * %rdi: flags > + */ > +ENTRY(native_restore_fl) > + push %_ASM_DI > + popf > + ret > +ENDPROC(native_restore_fl) > +EXPORT_SYMBOL(native_restore_fl) > To work on i386, this would have to be %_ASM_AX in that case. Something like this added to