Messages in this thread | | | Date | Thu, 11 Aug 2022 19:53:04 +0100 | From | "Sudip Mukherjee (Codethink)" <> | Subject | build failure of next-20220811 due to 332f1795ca20 ("Bluetooth: L2CAP: Fix l2cap_global_chan_by_psm regression") |
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Hi All,
Not sure if it has been reported, builds of csky and mips allmodconfig failed to build next-20220811 with gcc-12.
mips error is:
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); | ^~~~~~~~~~~~~~~~~~~
csky error is:
In file included from net/bluetooth/l2cap_core.c:37: In function 'bacmp', inlined from 'l2cap_global_chan_by_psm' at net/bluetooth/l2cap_core.c:2003:15: ./include/net/bluetooth/bluetooth.h:347:16: error: 'memcmp' specified bound 6 exceeds source size 0 [-Werror=stringop-overread] 347 | return memcmp(ba1, ba2, sizeof(bdaddr_t)); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ In function 'bacmp', inlined from 'l2cap_global_chan_by_psm' at net/bluetooth/l2cap_core.c:2004:15: ./include/net/bluetooth/bluetooth.h:347:16: error: 'memcmp' specified bound 6 exceeds source size 0 [-Werror=stringop-overread] 347 | return memcmp(ba1, ba2, sizeof(bdaddr_t)); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
git bisect pointed to 332f1795ca20 ("Bluetooth: L2CAP: Fix l2cap_global_chan_by_psm regression"). And, reverting that commit has fixed the build failure.
I will be happy to test any patch or provide any extra log if needed.
-- Regards Sudip
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