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| author | Masahiro Yamada <yamada.masahiro@socionext.com> | 2018-12-30 18:14:15 +0300 |
|---|---|---|
| committer | Masahiro Yamada <yamada.masahiro@socionext.com> | 2019-01-06 03:46:51 +0300 |
| commit | e9666d10a5677a494260d60d1fa0b73cc7646eb3 (patch) | |
| tree | fd609e683efff32ed6cc1458e20c40969328a33e /net/core | |
| parent | 72d3ebb929de339f991fc49b58942d2d5ecdb753 (diff) | |
| download | linux-e9666d10a5677a494260d60d1fa0b73cc7646eb3.tar.xz | |
jump_label: move 'asm goto' support test to Kconfig
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>
Diffstat (limited to 'net/core')
| -rw-r--r-- | net/core/dev.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index 1b5a4410be0e..82f20022259d 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -1821,7 +1821,7 @@ EXPORT_SYMBOL_GPL(net_dec_egress_queue); #endif static DEFINE_STATIC_KEY_FALSE(netstamp_needed_key); -#ifdef HAVE_JUMP_LABEL +#ifdef CONFIG_JUMP_LABEL static atomic_t netstamp_needed_deferred; static atomic_t netstamp_wanted; static void netstamp_clear(struct work_struct *work) @@ -1840,7 +1840,7 @@ static DECLARE_WORK(netstamp_work, netstamp_clear); void net_enable_timestamp(void) { -#ifdef HAVE_JUMP_LABEL +#ifdef CONFIG_JUMP_LABEL int wanted; while (1) { @@ -1860,7 +1860,7 @@ EXPORT_SYMBOL(net_enable_timestamp); void net_disable_timestamp(void) { -#ifdef HAVE_JUMP_LABEL +#ifdef CONFIG_JUMP_LABEL int wanted; while (1) { |