xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

jump_label: move 'asm goto' support test to Kconfig

Browse Source 
Currently, CONFIG_JUMP_LABEL just means "I _want_ to use jump label".

The jump label is controlled by HAVE_JUMP_LABEL, which is defined
like this:

  #if defined(CC_HAVE_ASM_GOTO) && defined(CONFIG_JUMP_LABEL)
  # define HAVE_JUMP_LABEL
  #endif

We can improve this by testing 'asm goto' support in Kconfig, then
make JUMP_LABEL depend on CC_HAS_ASM_GOTO.

Ugly #ifdef HAVE_JUMP_LABEL will go away, and CONFIG_JUMP_LABEL will
match to the real kernel capability.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
This commit is contained in:
Masahiro Yamada
2018-12-31 00:14:15 +09:00
parent 72d3ebb929
commit e9666d10a5
42 changed files with 65 additions and 119 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
tools/arch/x86/include/asm/rmwcc.h
View File

@@ -2,7 +2,7 @@
#ifndef _TOOLS_LINUX_ASM_X86_RMWcc
#define _TOOLS_LINUX_ASM_X86_RMWcc
#ifdef CC_HAVE_ASM_GOTO
#ifdef CONFIG_CC_HAS_ASM_GOTO
#define __GEN_RMWcc(fullop, var, cc, ...) \
do { \
@@ -20,7 +20,7 @@ cc_label: \
#define GEN_BINARY_RMWcc(op, var, vcon, val, arg0, cc) \
__GEN_RMWcc(op " %1, " arg0, var, cc, vcon (val))
#else /* !CC_HAVE_ASM_GOTO */
#else /* !CONFIG_CC_HAS_ASM_GOTO */
#define __GEN_RMWcc(fullop, var, cc, ...) \
do { \
@@ -37,6 +37,6 @@ do { \
#define GEN_BINARY_RMWcc(op, var, vcon, val, arg0, cc) \
__GEN_RMWcc(op " %2, " arg0, var, cc, vcon (val))
#endif /* CC_HAVE_ASM_GOTO */
#endif /* CONFIG_CC_HAS_ASM_GOTO */
#endif /* _TOOLS_LINUX_ASM_X86_RMWcc */