diff -Nru kpmcore-20.12.3/debian/changelog kpmcore-20.12.3/debian/changelog
--- kpmcore-20.12.3/debian/changelog	2021-03-22 10:36:09.000000000 +0000
+++ kpmcore-20.12.3/debian/changelog	2021-04-08 12:49:24.000000000 +0000
@@ -1,3 +1,10 @@
+kpmcore (20.12.3-2+rpi1) bullseye-staging; urgency=medium
+
+  [changes brought forward from 20.12.2-4+rpi1 by Peter Michael Green <plugwash@raspbian.org> at Tue, 23 Feb 2021 15:11:08 +0000]
+  * Update symbols file for raspbian.
+
+ -- Raspbian forward porter <root@raspbian.org>  Thu, 08 Apr 2021 12:49:24 +0000
+
 kpmcore (20.12.3-2) unstable; urgency=medium
 
   * Backport upstream fix so that S.M.A.R.T. information display always works
diff -Nru kpmcore-20.12.3/debian/libkpmcore10.symbols kpmcore-20.12.3/debian/libkpmcore10.symbols
--- kpmcore-20.12.3/debian/libkpmcore10.symbols	2021-03-03 22:36:47.000000000 +0000
+++ kpmcore-20.12.3/debian/libkpmcore10.symbols	2021-04-08 12:49:24.000000000 +0000
@@ -1377,12 +1377,12 @@
  _ZTIN2FS9linuxswapE@Base 20.12.2
  (arch=armel riscv64)_ZTIN9__gnu_cxx7__mutexE@Base 20.12.2
  (arch=armel riscv64)_ZTISt11_Mutex_baseILN9__gnu_cxx12_Lock_policyE1EE@Base 20.12.2
- (arch=alpha amd64 arm64 armhf hppa hurd-i386 i386 ia64 m68k mips64el mipsel powerpc ppc64 ppc64el s390x sh4 sparc64)_ZTISt11_Mutex_baseILN9__gnu_cxx12_Lock_policyE2EE@Base 20.12.2
+ (optional=notarmelnotriscvandprobabllynotraspbian)_ZTISt11_Mutex_baseILN9__gnu_cxx12_Lock_policyE2EE@Base 20.12.2
  (arch=armel riscv64)_ZTISt16_Sp_counted_baseILN9__gnu_cxx12_Lock_policyE1EE@Base 20.12.2
- (arch=alpha amd64 arm64 armhf hppa hurd-i386 i386 ia64 m68k mips64el mipsel powerpc ppc64 ppc64el s390x sh4 sparc64)_ZTISt16_Sp_counted_baseILN9__gnu_cxx12_Lock_policyE2EE@Base 20.12.2
+ (optional=notarmelnotriscvandprobabllynotraspbian)_ZTISt16_Sp_counted_baseILN9__gnu_cxx12_Lock_policyE2EE@Base 20.12.2
  (arch=armel armhf)_ZTISt19_Sp_make_shared_tag@Base 20.12.2
  (arch=armel riscv64)_ZTISt23_Sp_counted_ptr_inplaceI11SmartStatusSaIS0_ELN9__gnu_cxx12_Lock_policyE1EE@Base 20.12.2
- (arch=alpha amd64 arm64 armhf hppa hurd-i386 i386 ia64 m68k mips64el mipsel powerpc ppc64 ppc64el s390x sh4 sparc64)_ZTISt23_Sp_counted_ptr_inplaceI11SmartStatusSaIS0_ELN9__gnu_cxx12_Lock_policyE2EE@Base 20.12.2
+ (optional=notarmelnotriscvandprobabllynotraspbian)_ZTISt23_Sp_counted_ptr_inplaceI11SmartStatusSaIS0_ELN9__gnu_cxx12_Lock_policyE2EE@Base 20.12.2
  _ZTS10DiskDevice@Base 20.12.2
  _ZTS10FileSystem@Base 20.12.2
  _ZTS10PartWidget@Base 20.12.2
@@ -1455,12 +1455,12 @@
  _ZTSN2FS9linuxswapE@Base 20.12.2
  (arch=armel riscv64)_ZTSN9__gnu_cxx7__mutexE@Base 20.12.2
  (arch=armel riscv64)_ZTSSt11_Mutex_baseILN9__gnu_cxx12_Lock_policyE1EE@Base 20.12.2
- (arch=alpha amd64 arm64 armhf hppa hurd-i386 i386 ia64 m68k mips64el mipsel powerpc ppc64 ppc64el s390x sh4 sparc64)_ZTSSt11_Mutex_baseILN9__gnu_cxx12_Lock_policyE2EE@Base 20.12.2
+ (optional=notarmelnotriscvandprobabllynotraspbian)_ZTSSt11_Mutex_baseILN9__gnu_cxx12_Lock_policyE2EE@Base 20.12.2
  (arch=armel riscv64)_ZTSSt16_Sp_counted_baseILN9__gnu_cxx12_Lock_policyE1EE@Base 20.12.2
- (arch=alpha amd64 arm64 armhf hppa hurd-i386 i386 ia64 m68k mips64el mipsel powerpc ppc64 ppc64el s390x sh4 sparc64)_ZTSSt16_Sp_counted_baseILN9__gnu_cxx12_Lock_policyE2EE@Base 20.12.2
+ (optional=notarmelnotriscvandprobabllynotraspbian)_ZTSSt16_Sp_counted_baseILN9__gnu_cxx12_Lock_policyE2EE@Base 20.12.2
  _ZTSSt19_Sp_make_shared_tag@Base 20.12.2
  (arch=armel riscv64)_ZTSSt23_Sp_counted_ptr_inplaceI11SmartStatusSaIS0_ELN9__gnu_cxx12_Lock_policyE1EE@Base 20.12.2
- (arch=alpha amd64 arm64 armhf hppa hurd-i386 i386 ia64 m68k mips64el mipsel powerpc ppc64 ppc64el s390x sh4 sparc64)_ZTSSt23_Sp_counted_ptr_inplaceI11SmartStatusSaIS0_ELN9__gnu_cxx12_Lock_policyE2EE@Base 20.12.2
+ (optional=notarmelnotriscvandprobabllynotraspbian)_ZTSSt23_Sp_counted_ptr_inplaceI11SmartStatusSaIS0_ELN9__gnu_cxx12_Lock_policyE2EE@Base 20.12.2
  _ZTV10DiskDevice@Base 20.12.2
  _ZTV10FileSystem@Base 20.12.2
  _ZTV10PartWidget@Base 20.12.2
@@ -1532,7 +1532,7 @@
  _ZTVN2FS9bitlockerE@Base 20.12.2
  _ZTVN2FS9linuxswapE@Base 20.12.2
  (arch=armel riscv64)_ZTVSt23_Sp_counted_ptr_inplaceI11SmartStatusSaIS0_ELN9__gnu_cxx12_Lock_policyE1EE@Base 20.12.2
- (arch=alpha amd64 arm64 armhf hppa hurd-i386 i386 ia64 m68k mips64el mipsel powerpc ppc64 ppc64el s390x sh4 sparc64)_ZTVSt23_Sp_counted_ptr_inplaceI11SmartStatusSaIS0_ELN9__gnu_cxx12_Lock_policyE2EE@Base 20.12.2
+ (optional=notarmelnotriscvandprobabllynotraspbian)_ZTVSt23_Sp_counted_ptr_inplaceI11SmartStatusSaIS0_ELN9__gnu_cxx12_Lock_policyE2EE@Base 20.12.2
  _ZZNSt19_Sp_make_shared_tag5_S_tiEvE5__tag@Base 20.12.2
  _ZZZN10KAboutDataC4ERK7QStringS2_S2_S2_N13KAboutLicense10LicenseKeyES2_S2_S2_S2_Ed_NKUlvE_clEvE15qstring_literal@Base 20.12.2
  _ZZZNK12NewOperation8iconNameEvENKUlvE_clEvE15qstring_literal@Base 20.12.2