diff options
| author | Zhenguo Zhao <Zhenguo.Zhao1@unisoc.com> | 2021-08-20 20:17:46 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-09-14 10:50:27 +0200 |
| commit | cd936621379d513bd768319219840b003a45e729 (patch) | |
| tree | 4ad7b6233f19a923859b06fe2ab595c52c71b90d /include/linux/overflow.h | |
| parent | b9e851cd4a8749febb6d68d54d00ed7fe00633c9 (diff) | |
tty: n_gsm: Modify cr bit value when config requester
When n_gsm config "initiator=0",as requester,gsmld will receive dlci
SABM and DISC control command frame,the CR bit value should be 1.
If cr == 0,it will goto invalid,and it can't send UA response
frame and open requster dlci.
case SABM|PF:
- if (cr == 0)
+ if (cr == 0) {
+ printk("gsm_queue invalid\n");
goto invalid;
+ }
Example,gsmld receive dlc0 SABM command frame:f9 03 3f 01 1c f9
but gsmld goto invalid.
Kernel test log:
[ 101.794705] c0 gsmld_receive: 00000000: f9 03 3f 01 1c f9
[ 101.803341] c0 <-- 0) C: SABM(P)
[ 101.811371] c0 gsm_queue invalid
Signed-off-by: Zhenguo Zhao <Zhenguo.Zhao1@unisoc.com>
Link: https://lore.kernel.org/r/1629461872-26965-2-git-send-email-zhenguo6858@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/overflow.h')
0 files changed, 0 insertions, 0 deletions