Hi Everyone,
I get asked about keysigning occasionally, and tend to sign other people's GPG
encryption keys that I meet at conferences. For kernel developers,
this is mostly
important so they can send signed git pull requests as well as apply for
a user account on kernel.org to host their kernel developers. Other communities
such as Debian rely on GPG encryption for additional uses, so I generally
recommend all developers to have a GPG key and have at least three signatures
from others on it. See [1] for more information on this.
We have done keysigning parties during Connect in the past, and other
conferences have done the same thing. However, this takes a lot of preparation
work, and requires that everyone shows up at the same time in a room
as well as other downsides.
For the coming BKK19 meeting, I would propose a slightly organized
but ad-hoc method: Everyone who has a GPG key or who is in one
of the groups of people that may need one in the future, please prepare
the following steps:
- Make sure that you have a valid GPG key, with at least 2048 bits.
If you don't have one, create a fresh RSA-4096 key as documented
- Make sure that you have Linaro business cards with your current
full key fingerprint on them. The fingerprint will look like
"88AF CD20 6B16 1195 7187 F16B 60AB 47FF C909 5227"
If you do not have Linaro business cards, or they do not have the
fingerprint on them, order new business cards from [2] as Linaro
employees, as described in CascadeGoCloud ->
Company-Handbook -> Employee Information.
For assignees and member engineers, follow your company
procedures. [Question: we used to have Linaro business cards for
assignees as well, could we bring that back?]
Then during Connect, try to find those people you closely work
with, as well as anyone new to the company, and exchange business
cards. Make sure that the cards you hand out actually have the
correct key printed on them if you are paranoid.
Once you get home, download the gpg keys from everyone
you got cards from, check that the fingerprint matches, then
sign and upload them. Note that you should not normally have your
own master key on the laptop you travel with, so I assume this
will have to be done afterwards.
Arnd
[1] https://www.kernel.org/doc/html/latest/process/maintainer-pgp-guide.html
[2] https://printerbellomarket.co.uk/site/login/linaro
Tree/Branch: v4.20.13
Git describe: v4.20.13
Commit: 0f7c162c1d Linux 4.20.13
Build Time: 130 min 1 sec
Passed: 11 / 11 (100.00 %)
Failed: 0 / 11 ( 0.00 %)
Errors: 0
Warnings: 5
Section Mismatches: 0
-------------------------------------------------------------------------------
defconfigs with issues (other than build errors):
1 warnings 0 mismatches : x86_64-allmodconfig
2 warnings 0 mismatches : arm64-allmodconfig
1 warnings 0 mismatches : arm-multi_v7_defconfig
4 warnings 0 mismatches : arm-allmodconfig
1 warnings 0 mismatches : arm64-defconfig
-------------------------------------------------------------------------------
Warnings Summary: 5
5 ../include/linux/spinlock.h:279:3: warning: 'flags' may be used uninitialized in this function [-Wmaybe-uninitialized]
1 ../drivers/staging/erofs/unzip_vle.c:185:29: warning: array subscript is above array bounds [-Warray-bounds]
1 ../drivers/scsi/myrs.c:821:24: warning: 'sshdr.sense_key' may be used uninitialized in this function [-Wmaybe-uninitialized]
1 ../drivers/net/ethernet/mellanox/mlx5/core/en_stats.c:216:1: warning: the frame size of 1064 bytes is larger than 1024 bytes [-Wframe-larger-than=]
1 ../drivers/isdn/hardware/eicon/message.c:5985:1: warning: the frame size of 2064 bytes is larger than 2048 bytes [-Wframe-larger-than=]
===============================================================================
Detailed per-defconfig build reports below:
-------------------------------------------------------------------------------
x86_64-allmodconfig : PASS, 0 errors, 1 warnings, 0 section mismatches
Warnings:
../include/linux/spinlock.h:279:3: warning: 'flags' may be used uninitialized in this function [-Wmaybe-uninitialized]
-------------------------------------------------------------------------------
arm64-allmodconfig : PASS, 0 errors, 2 warnings, 0 section mismatches
Warnings:
../drivers/isdn/hardware/eicon/message.c:5985:1: warning: the frame size of 2064 bytes is larger than 2048 bytes [-Wframe-larger-than=]
../include/linux/spinlock.h:279:3: warning: 'flags' may be used uninitialized in this function [-Wmaybe-uninitialized]
-------------------------------------------------------------------------------
arm-multi_v7_defconfig : PASS, 0 errors, 1 warnings, 0 section mismatches
Warnings:
../include/linux/spinlock.h:279:3: warning: 'flags' may be used uninitialized in this function [-Wmaybe-uninitialized]
-------------------------------------------------------------------------------
arm-allmodconfig : PASS, 0 errors, 4 warnings, 0 section mismatches
Warnings:
../drivers/net/ethernet/mellanox/mlx5/core/en_stats.c:216:1: warning: the frame size of 1064 bytes is larger than 1024 bytes [-Wframe-larger-than=]
../drivers/scsi/myrs.c:821:24: warning: 'sshdr.sense_key' may be used uninitialized in this function [-Wmaybe-uninitialized]
../drivers/staging/erofs/unzip_vle.c:185:29: warning: array subscript is above array bounds [-Warray-bounds]
../include/linux/spinlock.h:279:3: warning: 'flags' may be used uninitialized in this function [-Wmaybe-uninitialized]
-------------------------------------------------------------------------------
arm64-defconfig : PASS, 0 errors, 1 warnings, 0 section mismatches
Warnings:
../include/linux/spinlock.h:279:3: warning: 'flags' may be used uninitialized in this function [-Wmaybe-uninitialized]
-------------------------------------------------------------------------------
Passed with no errors, warnings or mismatches:
arm64-allnoconfig
arm-multi_v5_defconfig
x86_64-defconfig
arm-allnoconfig
x86_64-allnoconfig
arm-multi_v4t_defconfig
Tree/Branch: next-20190227
Git describe: next-20190227
Commit: 7b827ff9af Add linux-next specific files for 20190227
Build Time: 141 min 49 sec
Passed: 10 / 11 ( 90.91 %)
Failed: 1 / 11 ( 9.09 %)
Errors: 1
Warnings: 25
Section Mismatches: 0
Failed defconfigs:
arm-allmodconfig
Errors:
arm-allmodconfig
ERROR: "__aeabi_uldivmod" [net/sched/sch_pie.ko] undefined!
-------------------------------------------------------------------------------
defconfigs with issues (other than build errors):
4 warnings 0 mismatches : arm64-allmodconfig
16 warnings 0 mismatches : arm-multi_v5_defconfig
16 warnings 0 mismatches : arm-multi_v7_defconfig
2 warnings 0 mismatches : x86_64-defconfig
19 warnings 0 mismatches : arm-allmodconfig
4 warnings 0 mismatches : arm-allnoconfig
9 warnings 0 mismatches : arm-multi_v4t_defconfig
7 warnings 0 mismatches : x86_64-allmodconfig
5 warnings 0 mismatches : arm64-defconfig
-------------------------------------------------------------------------------
Errors summary: 1
1 ERROR: "__aeabi_uldivmod" [net/sched/sch_pie.ko] undefined!
Warnings Summary: 25
8 ../drivers/regulator/core.c:234:45: warning: array subscript is above array bounds [-Warray-bounds]
7 <stdin>:1487:2: warning: #warning syscall io_uring_register not implemented [-Wcpp]
7 <stdin>:1484:2: warning: #warning syscall io_uring_enter not implemented [-Wcpp]
7 <stdin>:1481:2: warning: #warning syscall io_uring_setup not implemented [-Wcpp]
7 <stdin>:1478:2: warning: #warning syscall pidfd_send_signal not implemented [-Wcpp]
5 ../net/sunrpc/xprtsock.c:525:10: warning: 'read' may be used uninitialized in this function [-Wmaybe-uninitialized]
5 ../include/linux/spinlock.h:279:3: warning: 'flags' may be used uninitialized in this function [-Wmaybe-uninitialized]
4 ../net/sunrpc/xprtsock.c:529:23: warning: 'ret' may be used uninitialized in this function [-Wmaybe-uninitialized]
4 ../include/linux/pci-ats.h:70:12: warning: 'pci_prg_resp_pasid_required' defined but not used [-Wunused-function]
4 ../drivers/regulator/core.c:4763:38: warning: array subscript is above array bounds [-Warray-bounds]
3 ../net/sunrpc/xprtsock.c:529:9: warning: 'ret' may be used uninitialized in this function [-Wmaybe-uninitialized]
3 ../arch/arm/mm/init.c:471:13: warning: unused variable 'itcm_end' [-Wunused-variable]
3 ../arch/arm/mm/init.c:470:13: warning: unused variable 'dtcm_end' [-Wunused-variable]
2 ../net/sunrpc/xprtsock.c:498:15: warning: 'read' may be used uninitialized in this function [-Wmaybe-uninitialized]
2 ../drivers/video/fbdev/omap2/omapfb/dss/core.c:172:6: warning: unused variable 'r' [-Wunused-variable]
2 ../drivers/i2c/busses/i2c-sh_mobile.c:399:26: warning: 'data' may be used uninitialized in this function [-Wmaybe-uninitialized]
1 ../samples/seccomp/user-trap.c:83:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
1 ../samples/seccomp/user-trap.c:50:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
1 ../include/asm-generic/div64.h:222:28: warning: comparison of distinct pointer types lacks a cast
1 ../drivers/staging/erofs/unzip_vle.c:248:29: warning: array subscript is above array bounds [-Warray-bounds]
1 ../drivers/scsi/qla2xxx/qla_iocb.c:1180:8: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 7 has type 'dma_addr_t {aka unsigned int}' [-Wformat=]
1 ../drivers/scsi/qla2xxx/qla_iocb.c:1140:9: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 6 has type 'dma_addr_t {aka unsigned int}' [-Wformat=]
1 ../drivers/scsi/myrs.c:821:24: warning: 'sshdr.sense_key' may be used uninitialized in this function [-Wmaybe-uninitialized]
1 ../drivers/scsi/lpfc/lpfc_logmsg.h:62:45: warning: format '%ld' expects argument of type 'long int', but argument 5 has type 'unsigned int' [-Wformat=]
1 ../drivers/platform/x86/pcengines-apuv2.c:211:6: warning: unused variable 'rc' [-Wunused-variable]
===============================================================================
Detailed per-defconfig build reports below:
-------------------------------------------------------------------------------
arm64-allmodconfig : PASS, 0 errors, 4 warnings, 0 section mismatches
Warnings:
../net/sunrpc/xprtsock.c:525:10: warning: 'read' may be used uninitialized in this function [-Wmaybe-uninitialized]
../net/sunrpc/xprtsock.c:529:23: warning: 'ret' may be used uninitialized in this function [-Wmaybe-uninitialized]
../include/linux/spinlock.h:279:3: warning: 'flags' may be used uninitialized in this function [-Wmaybe-uninitialized]
../drivers/video/fbdev/omap2/omapfb/dss/core.c:172:6: warning: unused variable 'r' [-Wunused-variable]
-------------------------------------------------------------------------------
arm-multi_v5_defconfig : PASS, 0 errors, 16 warnings, 0 section mismatches
Warnings:
<stdin>:1478:2: warning: #warning syscall pidfd_send_signal not implemented [-Wcpp]
<stdin>:1481:2: warning: #warning syscall io_uring_setup not implemented [-Wcpp]
<stdin>:1484:2: warning: #warning syscall io_uring_enter not implemented [-Wcpp]
<stdin>:1487:2: warning: #warning syscall io_uring_register not implemented [-Wcpp]
../arch/arm/mm/init.c:471:13: warning: unused variable 'itcm_end' [-Wunused-variable]
../arch/arm/mm/init.c:470:13: warning: unused variable 'dtcm_end' [-Wunused-variable]
../net/sunrpc/xprtsock.c:529:9: warning: 'ret' may be used uninitialized in this function [-Wmaybe-uninitialized]
../net/sunrpc/xprtsock.c:498:15: warning: 'read' may be used uninitialized in this function [-Wmaybe-uninitialized]
../include/linux/pci-ats.h:70:12: warning: 'pci_prg_resp_pasid_required' defined but not used [-Wunused-function]
../drivers/regulator/core.c:234:45: warning: array subscript is above array bounds [-Warray-bounds]
../drivers/regulator/core.c:234:45: warning: array subscript is above array bounds [-Warray-bounds]
../drivers/regulator/core.c:4763:38: warning: array subscript is above array bounds [-Warray-bounds]
<stdin>:1478:2: warning: #warning syscall pidfd_send_signal not implemented [-Wcpp]
<stdin>:1481:2: warning: #warning syscall io_uring_setup not implemented [-Wcpp]
<stdin>:1484:2: warning: #warning syscall io_uring_enter not implemented [-Wcpp]
<stdin>:1487:2: warning: #warning syscall io_uring_register not implemented [-Wcpp]
-------------------------------------------------------------------------------
arm-multi_v7_defconfig : PASS, 0 errors, 16 warnings, 0 section mismatches
Warnings:
<stdin>:1478:2: warning: #warning syscall pidfd_send_signal not implemented [-Wcpp]
<stdin>:1481:2: warning: #warning syscall io_uring_setup not implemented [-Wcpp]
<stdin>:1484:2: warning: #warning syscall io_uring_enter not implemented [-Wcpp]
<stdin>:1487:2: warning: #warning syscall io_uring_register not implemented [-Wcpp]
../net/sunrpc/xprtsock.c:498:15: warning: 'read' may be used uninitialized in this function [-Wmaybe-uninitialized]
../net/sunrpc/xprtsock.c:529:9: warning: 'ret' may be used uninitialized in this function [-Wmaybe-uninitialized]
../drivers/i2c/busses/i2c-sh_mobile.c:399:26: warning: 'data' may be used uninitialized in this function [-Wmaybe-uninitialized]
../include/linux/pci-ats.h:70:12: warning: 'pci_prg_resp_pasid_required' defined but not used [-Wunused-function]
../drivers/regulator/core.c:234:45: warning: array subscript is above array bounds [-Warray-bounds]
../drivers/regulator/core.c:234:45: warning: array subscript is above array bounds [-Warray-bounds]
../drivers/regulator/core.c:4763:38: warning: array subscript is above array bounds [-Warray-bounds]
../include/linux/spinlock.h:279:3: warning: 'flags' may be used uninitialized in this function [-Wmaybe-uninitialized]
<stdin>:1478:2: warning: #warning syscall pidfd_send_signal not implemented [-Wcpp]
<stdin>:1481:2: warning: #warning syscall io_uring_setup not implemented [-Wcpp]
<stdin>:1484:2: warning: #warning syscall io_uring_enter not implemented [-Wcpp]
<stdin>:1487:2: warning: #warning syscall io_uring_register not implemented [-Wcpp]
-------------------------------------------------------------------------------
x86_64-defconfig : PASS, 0 errors, 2 warnings, 0 section mismatches
Warnings:
../net/sunrpc/xprtsock.c:529:23: warning: 'ret' may be used uninitialized in this function [-Wmaybe-uninitialized]
../net/sunrpc/xprtsock.c:525:10: warning: 'read' may be used uninitialized in this function [-Wmaybe-uninitialized]
-------------------------------------------------------------------------------
arm-allmodconfig : FAIL, 1 errors, 19 warnings, 0 section mismatches
Errors:
ERROR: "__aeabi_uldivmod" [net/sched/sch_pie.ko] undefined!
Warnings:
<stdin>:1478:2: warning: #warning syscall pidfd_send_signal not implemented [-Wcpp]
<stdin>:1481:2: warning: #warning syscall io_uring_setup not implemented [-Wcpp]
<stdin>:1484:2: warning: #warning syscall io_uring_enter not implemented [-Wcpp]
<stdin>:1487:2: warning: #warning syscall io_uring_register not implemented [-Wcpp]
../arch/arm/mm/init.c:471:13: warning: unused variable 'itcm_end' [-Wunused-variable]
../arch/arm/mm/init.c:470:13: warning: unused variable 'dtcm_end' [-Wunused-variable]
../drivers/i2c/busses/i2c-sh_mobile.c:399:26: warning: 'data' may be used uninitialized in this function [-Wmaybe-uninitialized]
../net/sunrpc/xprtsock.c:529:9: warning: 'ret' may be used uninitialized in this function [-Wmaybe-uninitialized]
../net/sunrpc/xprtsock.c:525:10: warning: 'read' may be used uninitialized in this function [-Wmaybe-uninitialized]
../drivers/regulator/core.c:234:45: warning: array subscript is above array bounds [-Warray-bounds]
../drivers/regulator/core.c:234:45: warning: array subscript is above array bounds [-Warray-bounds]
../drivers/regulator/core.c:4763:38: warning: array subscript is above array bounds [-Warray-bounds]
../drivers/scsi/lpfc/lpfc_logmsg.h:62:45: warning: format '%ld' expects argument of type 'long int', but argument 5 has type 'unsigned int' [-Wformat=]
../drivers/staging/erofs/unzip_vle.c:248:29: warning: array subscript is above array bounds [-Warray-bounds]
../drivers/scsi/qla2xxx/qla_iocb.c:1140:9: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 6 has type 'dma_addr_t {aka unsigned int}' [-Wformat=]
../drivers/scsi/qla2xxx/qla_iocb.c:1180:8: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 7 has type 'dma_addr_t {aka unsigned int}' [-Wformat=]
../include/asm-generic/div64.h:222:28: warning: comparison of distinct pointer types lacks a cast
../drivers/scsi/myrs.c:821:24: warning: 'sshdr.sense_key' may be used uninitialized in this function [-Wmaybe-uninitialized]
../include/linux/spinlock.h:279:3: warning: 'flags' may be used uninitialized in this function [-Wmaybe-uninitialized]
-------------------------------------------------------------------------------
arm-allnoconfig : PASS, 0 errors, 4 warnings, 0 section mismatches
Warnings:
<stdin>:1478:2: warning: #warning syscall pidfd_send_signal not implemented [-Wcpp]
<stdin>:1481:2: warning: #warning syscall io_uring_setup not implemented [-Wcpp]
<stdin>:1484:2: warning: #warning syscall io_uring_enter not implemented [-Wcpp]
<stdin>:1487:2: warning: #warning syscall io_uring_register not implemented [-Wcpp]
-------------------------------------------------------------------------------
arm-multi_v4t_defconfig : PASS, 0 errors, 9 warnings, 0 section mismatches
Warnings:
<stdin>:1478:2: warning: #warning syscall pidfd_send_signal not implemented [-Wcpp]
<stdin>:1481:2: warning: #warning syscall io_uring_setup not implemented [-Wcpp]
<stdin>:1484:2: warning: #warning syscall io_uring_enter not implemented [-Wcpp]
<stdin>:1487:2: warning: #warning syscall io_uring_register not implemented [-Wcpp]
../arch/arm/mm/init.c:471:13: warning: unused variable 'itcm_end' [-Wunused-variable]
../arch/arm/mm/init.c:470:13: warning: unused variable 'dtcm_end' [-Wunused-variable]
../drivers/regulator/core.c:234:45: warning: array subscript is above array bounds [-Warray-bounds]
../drivers/regulator/core.c:234:45: warning: array subscript is above array bounds [-Warray-bounds]
../drivers/regulator/core.c:4763:38: warning: array subscript is above array bounds [-Warray-bounds]
-------------------------------------------------------------------------------
x86_64-allmodconfig : PASS, 0 errors, 7 warnings, 0 section mismatches
Warnings:
../samples/seccomp/user-trap.c:50:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
../samples/seccomp/user-trap.c:83:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
../net/sunrpc/xprtsock.c:525:10: warning: 'read' may be used uninitialized in this function [-Wmaybe-uninitialized]
../net/sunrpc/xprtsock.c:529:23: warning: 'ret' may be used uninitialized in this function [-Wmaybe-uninitialized]
../drivers/platform/x86/pcengines-apuv2.c:211:6: warning: unused variable 'rc' [-Wunused-variable]
../include/linux/spinlock.h:279:3: warning: 'flags' may be used uninitialized in this function [-Wmaybe-uninitialized]
../drivers/video/fbdev/omap2/omapfb/dss/core.c:172:6: warning: unused variable 'r' [-Wunused-variable]
-------------------------------------------------------------------------------
arm64-defconfig : PASS, 0 errors, 5 warnings, 0 section mismatches
Warnings:
../net/sunrpc/xprtsock.c:529:23: warning: 'ret' may be used uninitialized in this function [-Wmaybe-uninitialized]
../net/sunrpc/xprtsock.c:525:10: warning: 'read' may be used uninitialized in this function [-Wmaybe-uninitialized]
../include/linux/pci-ats.h:70:12: warning: 'pci_prg_resp_pasid_required' defined but not used [-Wunused-function]
../include/linux/pci-ats.h:70:12: warning: 'pci_prg_resp_pasid_required' defined but not used [-Wunused-function]
../include/linux/spinlock.h:279:3: warning: 'flags' may be used uninitialized in this function [-Wmaybe-uninitialized]
-------------------------------------------------------------------------------
Passed with no errors, warnings or mismatches:
x86_64-allnoconfig
arm64-allnoconfig
Tree/Branch: next-20190226
Git describe: next-20190226
Commit: 8e7f81e2eb Add linux-next specific files for 20190226
Build Time: 142 min 12 sec
Passed: 10 / 11 ( 90.91 %)
Failed: 1 / 11 ( 9.09 %)
Errors: 1
Warnings: 24
Section Mismatches: 0
Failed defconfigs:
arm-allmodconfig
Errors:
arm-allmodconfig
ERROR: "__aeabi_uldivmod" [net/sched/sch_pie.ko] undefined!
-------------------------------------------------------------------------------
defconfigs with issues (other than build errors):
4 warnings 0 mismatches : arm64-allmodconfig
15 warnings 0 mismatches : arm-multi_v5_defconfig
15 warnings 0 mismatches : arm-multi_v7_defconfig
2 warnings 0 mismatches : x86_64-defconfig
19 warnings 0 mismatches : arm-allmodconfig
4 warnings 0 mismatches : arm-allnoconfig
9 warnings 0 mismatches : arm-multi_v4t_defconfig
7 warnings 0 mismatches : x86_64-allmodconfig
3 warnings 0 mismatches : arm64-defconfig
-------------------------------------------------------------------------------
Errors summary: 1
1 ERROR: "__aeabi_uldivmod" [net/sched/sch_pie.ko] undefined!
Warnings Summary: 24
8 ../drivers/regulator/core.c:234:45: warning: array subscript is above array bounds [-Warray-bounds]
7 <stdin>:1487:2: warning: #warning syscall io_uring_register not implemented [-Wcpp]
7 <stdin>:1484:2: warning: #warning syscall io_uring_enter not implemented [-Wcpp]
7 <stdin>:1481:2: warning: #warning syscall io_uring_setup not implemented [-Wcpp]
7 <stdin>:1478:2: warning: #warning syscall pidfd_send_signal not implemented [-Wcpp]
5 ../net/sunrpc/xprtsock.c:525:10: warning: 'read' may be used uninitialized in this function [-Wmaybe-uninitialized]
5 ../include/linux/spinlock.h:279:3: warning: 'flags' may be used uninitialized in this function [-Wmaybe-uninitialized]
4 ../net/sunrpc/xprtsock.c:529:23: warning: 'ret' may be used uninitialized in this function [-Wmaybe-uninitialized]
4 ../drivers/regulator/core.c:4763:38: warning: array subscript is above array bounds [-Warray-bounds]
3 ../net/sunrpc/xprtsock.c:529:9: warning: 'ret' may be used uninitialized in this function [-Wmaybe-uninitialized]
3 ../arch/arm/mm/init.c:471:13: warning: unused variable 'itcm_end' [-Wunused-variable]
3 ../arch/arm/mm/init.c:470:13: warning: unused variable 'dtcm_end' [-Wunused-variable]
2 ../net/sunrpc/xprtsock.c:498:15: warning: 'read' may be used uninitialized in this function [-Wmaybe-uninitialized]
2 ../drivers/video/fbdev/omap2/omapfb/dss/core.c:172:6: warning: unused variable 'r' [-Wunused-variable]
2 ../drivers/i2c/busses/i2c-sh_mobile.c:399:26: warning: 'data' may be used uninitialized in this function [-Wmaybe-uninitialized]
1 ../samples/seccomp/user-trap.c:83:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
1 ../samples/seccomp/user-trap.c:50:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
1 ../include/asm-generic/div64.h:222:28: warning: comparison of distinct pointer types lacks a cast
1 ../drivers/staging/erofs/unzip_vle.c:248:29: warning: array subscript is above array bounds [-Warray-bounds]
1 ../drivers/scsi/qla2xxx/qla_iocb.c:1180:8: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 7 has type 'dma_addr_t {aka unsigned int}' [-Wformat=]
1 ../drivers/scsi/qla2xxx/qla_iocb.c:1140:9: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 6 has type 'dma_addr_t {aka unsigned int}' [-Wformat=]
1 ../drivers/scsi/myrs.c:821:24: warning: 'sshdr.sense_key' may be used uninitialized in this function [-Wmaybe-uninitialized]
1 ../drivers/scsi/lpfc/lpfc_logmsg.h:62:45: warning: format '%ld' expects argument of type 'long int', but argument 5 has type 'unsigned int' [-Wformat=]
1 ../drivers/platform/x86/pcengines-apuv2.c:211:6: warning: unused variable 'rc' [-Wunused-variable]
===============================================================================
Detailed per-defconfig build reports below:
-------------------------------------------------------------------------------
arm64-allmodconfig : PASS, 0 errors, 4 warnings, 0 section mismatches
Warnings:
../net/sunrpc/xprtsock.c:525:10: warning: 'read' may be used uninitialized in this function [-Wmaybe-uninitialized]
../net/sunrpc/xprtsock.c:529:23: warning: 'ret' may be used uninitialized in this function [-Wmaybe-uninitialized]
../include/linux/spinlock.h:279:3: warning: 'flags' may be used uninitialized in this function [-Wmaybe-uninitialized]
../drivers/video/fbdev/omap2/omapfb/dss/core.c:172:6: warning: unused variable 'r' [-Wunused-variable]
-------------------------------------------------------------------------------
arm-multi_v5_defconfig : PASS, 0 errors, 15 warnings, 0 section mismatches
Warnings:
<stdin>:1478:2: warning: #warning syscall pidfd_send_signal not implemented [-Wcpp]
<stdin>:1481:2: warning: #warning syscall io_uring_setup not implemented [-Wcpp]
<stdin>:1484:2: warning: #warning syscall io_uring_enter not implemented [-Wcpp]
<stdin>:1487:2: warning: #warning syscall io_uring_register not implemented [-Wcpp]
../arch/arm/mm/init.c:471:13: warning: unused variable 'itcm_end' [-Wunused-variable]
../arch/arm/mm/init.c:470:13: warning: unused variable 'dtcm_end' [-Wunused-variable]
../net/sunrpc/xprtsock.c:529:9: warning: 'ret' may be used uninitialized in this function [-Wmaybe-uninitialized]
../net/sunrpc/xprtsock.c:498:15: warning: 'read' may be used uninitialized in this function [-Wmaybe-uninitialized]
../drivers/regulator/core.c:234:45: warning: array subscript is above array bounds [-Warray-bounds]
../drivers/regulator/core.c:234:45: warning: array subscript is above array bounds [-Warray-bounds]
../drivers/regulator/core.c:4763:38: warning: array subscript is above array bounds [-Warray-bounds]
<stdin>:1478:2: warning: #warning syscall pidfd_send_signal not implemented [-Wcpp]
<stdin>:1481:2: warning: #warning syscall io_uring_setup not implemented [-Wcpp]
<stdin>:1484:2: warning: #warning syscall io_uring_enter not implemented [-Wcpp]
<stdin>:1487:2: warning: #warning syscall io_uring_register not implemented [-Wcpp]
-------------------------------------------------------------------------------
arm-multi_v7_defconfig : PASS, 0 errors, 15 warnings, 0 section mismatches
Warnings:
<stdin>:1478:2: warning: #warning syscall pidfd_send_signal not implemented [-Wcpp]
<stdin>:1481:2: warning: #warning syscall io_uring_setup not implemented [-Wcpp]
<stdin>:1484:2: warning: #warning syscall io_uring_enter not implemented [-Wcpp]
<stdin>:1487:2: warning: #warning syscall io_uring_register not implemented [-Wcpp]
../net/sunrpc/xprtsock.c:498:15: warning: 'read' may be used uninitialized in this function [-Wmaybe-uninitialized]
../net/sunrpc/xprtsock.c:529:9: warning: 'ret' may be used uninitialized in this function [-Wmaybe-uninitialized]
../drivers/i2c/busses/i2c-sh_mobile.c:399:26: warning: 'data' may be used uninitialized in this function [-Wmaybe-uninitialized]
../drivers/regulator/core.c:234:45: warning: array subscript is above array bounds [-Warray-bounds]
../drivers/regulator/core.c:234:45: warning: array subscript is above array bounds [-Warray-bounds]
../drivers/regulator/core.c:4763:38: warning: array subscript is above array bounds [-Warray-bounds]
../include/linux/spinlock.h:279:3: warning: 'flags' may be used uninitialized in this function [-Wmaybe-uninitialized]
<stdin>:1478:2: warning: #warning syscall pidfd_send_signal not implemented [-Wcpp]
<stdin>:1481:2: warning: #warning syscall io_uring_setup not implemented [-Wcpp]
<stdin>:1484:2: warning: #warning syscall io_uring_enter not implemented [-Wcpp]
<stdin>:1487:2: warning: #warning syscall io_uring_register not implemented [-Wcpp]
-------------------------------------------------------------------------------
x86_64-defconfig : PASS, 0 errors, 2 warnings, 0 section mismatches
Warnings:
../net/sunrpc/xprtsock.c:529:23: warning: 'ret' may be used uninitialized in this function [-Wmaybe-uninitialized]
../net/sunrpc/xprtsock.c:525:10: warning: 'read' may be used uninitialized in this function [-Wmaybe-uninitialized]
-------------------------------------------------------------------------------
arm-allmodconfig : FAIL, 1 errors, 19 warnings, 0 section mismatches
Errors:
ERROR: "__aeabi_uldivmod" [net/sched/sch_pie.ko] undefined!
Warnings:
<stdin>:1478:2: warning: #warning syscall pidfd_send_signal not implemented [-Wcpp]
<stdin>:1481:2: warning: #warning syscall io_uring_setup not implemented [-Wcpp]
<stdin>:1484:2: warning: #warning syscall io_uring_enter not implemented [-Wcpp]
<stdin>:1487:2: warning: #warning syscall io_uring_register not implemented [-Wcpp]
../arch/arm/mm/init.c:471:13: warning: unused variable 'itcm_end' [-Wunused-variable]
../arch/arm/mm/init.c:470:13: warning: unused variable 'dtcm_end' [-Wunused-variable]
../net/sunrpc/xprtsock.c:529:9: warning: 'ret' may be used uninitialized in this function [-Wmaybe-uninitialized]
../net/sunrpc/xprtsock.c:525:10: warning: 'read' may be used uninitialized in this function [-Wmaybe-uninitialized]
../drivers/i2c/busses/i2c-sh_mobile.c:399:26: warning: 'data' may be used uninitialized in this function [-Wmaybe-uninitialized]
../drivers/regulator/core.c:234:45: warning: array subscript is above array bounds [-Warray-bounds]
../drivers/regulator/core.c:234:45: warning: array subscript is above array bounds [-Warray-bounds]
../drivers/regulator/core.c:4763:38: warning: array subscript is above array bounds [-Warray-bounds]
../drivers/staging/erofs/unzip_vle.c:248:29: warning: array subscript is above array bounds [-Warray-bounds]
../drivers/scsi/lpfc/lpfc_logmsg.h:62:45: warning: format '%ld' expects argument of type 'long int', but argument 5 has type 'unsigned int' [-Wformat=]
../drivers/scsi/qla2xxx/qla_iocb.c:1140:9: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 6 has type 'dma_addr_t {aka unsigned int}' [-Wformat=]
../drivers/scsi/qla2xxx/qla_iocb.c:1180:8: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 7 has type 'dma_addr_t {aka unsigned int}' [-Wformat=]
../include/linux/spinlock.h:279:3: warning: 'flags' may be used uninitialized in this function [-Wmaybe-uninitialized]
../drivers/scsi/myrs.c:821:24: warning: 'sshdr.sense_key' may be used uninitialized in this function [-Wmaybe-uninitialized]
../include/asm-generic/div64.h:222:28: warning: comparison of distinct pointer types lacks a cast
-------------------------------------------------------------------------------
arm-allnoconfig : PASS, 0 errors, 4 warnings, 0 section mismatches
Warnings:
<stdin>:1478:2: warning: #warning syscall pidfd_send_signal not implemented [-Wcpp]
<stdin>:1481:2: warning: #warning syscall io_uring_setup not implemented [-Wcpp]
<stdin>:1484:2: warning: #warning syscall io_uring_enter not implemented [-Wcpp]
<stdin>:1487:2: warning: #warning syscall io_uring_register not implemented [-Wcpp]
-------------------------------------------------------------------------------
arm-multi_v4t_defconfig : PASS, 0 errors, 9 warnings, 0 section mismatches
Warnings:
<stdin>:1478:2: warning: #warning syscall pidfd_send_signal not implemented [-Wcpp]
<stdin>:1481:2: warning: #warning syscall io_uring_setup not implemented [-Wcpp]
<stdin>:1484:2: warning: #warning syscall io_uring_enter not implemented [-Wcpp]
<stdin>:1487:2: warning: #warning syscall io_uring_register not implemented [-Wcpp]
../arch/arm/mm/init.c:471:13: warning: unused variable 'itcm_end' [-Wunused-variable]
../arch/arm/mm/init.c:470:13: warning: unused variable 'dtcm_end' [-Wunused-variable]
../drivers/regulator/core.c:234:45: warning: array subscript is above array bounds [-Warray-bounds]
../drivers/regulator/core.c:234:45: warning: array subscript is above array bounds [-Warray-bounds]
../drivers/regulator/core.c:4763:38: warning: array subscript is above array bounds [-Warray-bounds]
-------------------------------------------------------------------------------
x86_64-allmodconfig : PASS, 0 errors, 7 warnings, 0 section mismatches
Warnings:
../samples/seccomp/user-trap.c:50:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
../samples/seccomp/user-trap.c:83:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
../net/sunrpc/xprtsock.c:525:10: warning: 'read' may be used uninitialized in this function [-Wmaybe-uninitialized]
../net/sunrpc/xprtsock.c:529:23: warning: 'ret' may be used uninitialized in this function [-Wmaybe-uninitialized]
../drivers/platform/x86/pcengines-apuv2.c:211:6: warning: unused variable 'rc' [-Wunused-variable]
../include/linux/spinlock.h:279:3: warning: 'flags' may be used uninitialized in this function [-Wmaybe-uninitialized]
../drivers/video/fbdev/omap2/omapfb/dss/core.c:172:6: warning: unused variable 'r' [-Wunused-variable]
-------------------------------------------------------------------------------
arm64-defconfig : PASS, 0 errors, 3 warnings, 0 section mismatches
Warnings:
../net/sunrpc/xprtsock.c:529:23: warning: 'ret' may be used uninitialized in this function [-Wmaybe-uninitialized]
../net/sunrpc/xprtsock.c:525:10: warning: 'read' may be used uninitialized in this function [-Wmaybe-uninitialized]
../include/linux/spinlock.h:279:3: warning: 'flags' may be used uninitialized in this function [-Wmaybe-uninitialized]
-------------------------------------------------------------------------------
Passed with no errors, warnings or mismatches:
x86_64-allnoconfig
arm64-allnoconfig