[PATCH v2] Bluetooth: L2CAP: Fix build errors in some archs

[PATCH v2] Bluetooth: L2CAP: Fix build errors in some archs

[Luiz Augusto von Dentz]

From: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>

This attempts to fix the follow errors:

In function 'memcmp',
    inlined from 'bacmp' at ./include/net/bluetooth/bluetooth.h:347:9,
    inlined from 'l2cap_global_chan_by_psm' at
    net/bluetooth/l2cap_core.c:2003:15:
./include/linux/fortify-string.h:44:33: error: '__builtin_memcmp'
specified bound 6 exceeds source size 0 [-Werror=stringop-overread]
   44 | #define __underlying_memcmp     __builtin_memcmp
      |                                 ^
./include/linux/fortify-string.h:420:16: note: in expansion of macro
'__underlying_memcmp'
  420 |         return __underlying_memcmp(p, q, size);
      |                ^~~~~~~~~~~~~~~~~~~
In function 'memcmp',
    inlined from 'bacmp' at ./include/net/bluetooth/bluetooth.h:347:9,
    inlined from 'l2cap_global_chan_by_psm' at
    net/bluetooth/l2cap_core.c:2004:15:
./include/linux/fortify-string.h:44:33: error: '__builtin_memcmp'
specified bound 6 exceeds source size 0 [-Werror=stringop-overread]
   44 | #define __underlying_memcmp     __builtin_memcmp
      |                                 ^
./include/linux/fortify-string.h:420:16: note: in expansion of macro
'__underlying_memcmp'
  420 |         return __underlying_memcmp(p, q, size);
      |                ^~~~~~~~~~~~~~~~~~~

Fixes: 332f1795ca20 ("Bluetooth: L2CAP: Fix l2cap_global_chan_by_psm regression")
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
---
 net/bluetooth/l2cap_core.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 1c39fc40591b..2c9de67daadc 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -1992,8 +1992,7 @@ static struct l2cap_chan *l2cap_global_chan_by_psm(int state, __le16 psm,
 			src_match = !bacmp(&c->src, src);
 			dst_match = !bacmp(&c->dst, dst);
 			if (src_match && dst_match) {
-				c = l2cap_chan_hold_unless_zero(c);
-				if (!c)
+				if (!l2cap_chan_hold_unless_zero(c))
 					continue;
 
 				read_unlock(&chan_list_lock);
-- 
2.37.1

RE: [v2] Bluetooth: L2CAP: Fix build errors in some archs

[bluez.test.bot]

[-- Attachment #1: Type: text/plain, Size: 1100 bytes --]

This is automated email and please do not reply to this email!

Dear submitter,

Thank you for submitting the patches to the linux bluetooth mailing list.
This is a CI test results with your patch series:
PW Link:https://patchwork.kernel.org/project/bluetooth/list/?series=667289

---Test result---

Test Summary:
CheckPatch                    PASS      1.43 seconds
GitLint                       PASS      0.74 seconds
SubjectPrefix                 PASS      0.73 seconds
BuildKernel                   PASS      37.55 seconds
BuildKernel32                 PASS      31.88 seconds
Incremental Build with patchesPASS      44.12 seconds
TestRunner: Setup             PASS      547.06 seconds
TestRunner: l2cap-tester      PASS      18.38 seconds
TestRunner: bnep-tester       PASS      7.13 seconds
TestRunner: mgmt-tester       PASS      110.56 seconds
TestRunner: rfcomm-tester     PASS      10.81 seconds
TestRunner: sco-tester        PASS      10.81 seconds
TestRunner: smp-tester        PASS      11.11 seconds
TestRunner: userchan-tester   PASS      8.05 seconds



---
Regards,
Linux Bluetooth