diff options
| author | Helge Deller <deller@gmx.de> | 2023-05-19 12:12:06 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-05-30 14:17:22 +0100 |
| commit | afee0f4b114f7a046c960e53c033b4ac1e03a8cb (patch) | |
| tree | 00ba016ee4bf5c9c4c4b16926006d942681299ec | |
| parent | 125e244ac8027c30ea06c72ab437ef8b4857fea2 (diff) | |
| download | linux-stable-afee0f4b114f7a046c960e53c033b4ac1e03a8cb.tar.gz linux-stable-afee0f4b114f7a046c960e53c033b4ac1e03a8cb.tar.bz2 linux-stable-afee0f4b114f7a046c960e53c033b4ac1e03a8cb.zip | |
parisc: Use num_present_cpus() in alternative patching code
commit b6405f0829d7b1dd926ba3ca5f691cab835abfaa upstream.
When patching the kernel code some alternatives depend on SMP vs. !SMP.
Use the value of num_present_cpus() instead of num_online_cpus() to
decide, otherwise we may run into issues if and additional CPU is
enabled after having loaded a module while only one CPU was enabled.
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: <stable@vger.kernel.org> # v6.1+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | arch/parisc/kernel/alternative.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/parisc/kernel/alternative.c b/arch/parisc/kernel/alternative.c index 66f5672c70bd..25c4d6c3375d 100644 --- a/arch/parisc/kernel/alternative.c +++ b/arch/parisc/kernel/alternative.c @@ -25,7 +25,7 @@ void __init_or_module apply_alternatives(struct alt_instr *start, { struct alt_instr *entry; int index = 0, applied = 0; - int num_cpus = num_online_cpus(); + int num_cpus = num_present_cpus(); u16 cond_check; cond_check = ALT_COND_ALWAYS | |