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| author | Emil Velikov <emil.l.velikov@gmail.com> | 2020-05-13 22:43:41 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-05-15 14:53:18 +0200 |
| commit | 0f1c9688a194d22bb81953bd85bd18b0115fd17f (patch) | |
| tree | a77a76aaad9e439dc881d66fb5720f51e80089a1 /drivers/tty/sysrq.c | |
| parent | beca62c4212ade1516a526784adf7f7d99c7f3d9 (diff) | |
| download | linux-stable-0f1c9688a194d22bb81953bd85bd18b0115fd17f.tar.gz linux-stable-0f1c9688a194d22bb81953bd85bd18b0115fd17f.tar.bz2 linux-stable-0f1c9688a194d22bb81953bd85bd18b0115fd17f.zip | |
tty/sysrq: alpha: export and use __sysrq_get_key_op()
Export a pointer to the sysrq_get_key_op(). This way we can cleanly
unregister it, instead of the current solutions of modifuing it inplace.
Since __sysrq_get_key_op() is no longer used externally, let's make it
a static function.
This patch will allow us to limit access to each and every sysrq op and
constify the sysrq handling.
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jiri Slaby <jslaby@suse.com>
Cc: linux-kernel@vger.kernel.org
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: linux-alpha@vger.kernel.org
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Link: https://lore.kernel.org/r/20200513214351.2138580-1-emil.l.velikov@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/sysrq.c')
| -rw-r--r-- | drivers/tty/sysrq.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/tty/sysrq.c b/drivers/tty/sysrq.c index 0dc3878794fd..1741134cabca 100644 --- a/drivers/tty/sysrq.c +++ b/drivers/tty/sysrq.c @@ -172,6 +172,8 @@ static struct sysrq_key_op sysrq_reboot_op = { .enable_mask = SYSRQ_ENABLE_BOOT, }; +struct sysrq_key_op *__sysrq_reboot_op = &sysrq_reboot_op; + static void sysrq_handle_sync(int key) { emergency_sync(); @@ -516,7 +518,7 @@ static int sysrq_key_table_key2index(int key) /* * get and put functions for the table, exposed to modules. */ -struct sysrq_key_op *__sysrq_get_key_op(int key) +static struct sysrq_key_op *__sysrq_get_key_op(int key) { struct sysrq_key_op *op_p = NULL; int i; |