ich777/linux_media
1
0
Fork 0
mirror of https://github.com/tbsdtv/linux_media.git synced 2025-07-23 04:33:26 +02:00
Code Issues 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

2
lib/dynamic_debug.c
View File

@@ -188,7 +188,7 @@ static int ddebug_change(const struct ddebug_query *query,
newflags = (dp->flags & mask) | flags;
if (newflags == dp->flags)
continue;
#ifdef HAVE_JUMP_LABEL
#ifdef CONFIG_JUMP_LABEL
if (dp->flags & _DPRINTK_FLAGS_PRINT) {
if (!(flags & _DPRINTK_FLAGS_PRINT))
static_branch_disable(&dp->key.dd_key_true);