From b38758d4d47a769268da791ec6a1ab8b138e203e Mon Sep 17 00:00:00 2001 From: Evgeniy Didin Date: Tue, 30 Jan 2018 15:36:51 +0300 Subject: kernel: backport fix undefined abort While building mpi.ko module with stable Linux v4.14.14 an error occured: >ERROR: "abort" [lib/mpi/mpi.ko] undefined! In upstream Linux 4.15 this issue is fixed: Commit 7c2c11b208be ("arch: define weak abort()") https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7c2c11b208be09c156573fc0076b7b3646e05219 Commit dc8635b78cd8 ("kernel/exit.c: export abort() to modules") https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=dc8635b78cd8669c37e230058d18c33af7451ab1 So lets add backport patches until these fixes are not applied in stable version. Signed-off-by: Evgeniy Didin Cc: Alexey Brodkin CC: John Crispin CC: Hauke Mehrtens --- ...002-kernel-exit.c-export-abort-to-modules.patch | 74 ++++++++++++++++++++++ 1 file changed, 74 insertions(+) create mode 100644 target/linux/generic/backport-4.14/081-v4.15-0002-kernel-exit.c-export-abort-to-modules.patch (limited to 'target/linux/generic/backport-4.14/081-v4.15-0002-kernel-exit.c-export-abort-to-modules.patch') diff --git a/target/linux/generic/backport-4.14/081-v4.15-0002-kernel-exit.c-export-abort-to-modules.patch b/target/linux/generic/backport-4.14/081-v4.15-0002-kernel-exit.c-export-abort-to-modules.patch new file mode 100644 index 0000000000..5b95b6798d --- /dev/null +++ b/target/linux/generic/backport-4.14/081-v4.15-0002-kernel-exit.c-export-abort-to-modules.patch @@ -0,0 +1,74 @@ +From dc8635b78cd8669c37e230058d18c33af7451ab1 Mon Sep 17 00:00:00 2001 +From: Andrew Morton +Date: Thu, 4 Jan 2018 16:17:56 -0800 +Subject: [PATCH] kernel/exit.c: export abort() to modules + +gcc -fisolate-erroneous-paths-dereference can generate calls to abort() +from modular code too. + +[arnd@arndb.de: drop duplicate exports of abort()] + Link: http://lkml.kernel.org/r/20180102103311.706364-1-arnd@arndb.de +Reported-by: Vineet Gupta +Cc: Sudip Mukherjee +Cc: Arnd Bergmann +Cc: Alexey Brodkin +Cc: Russell King +Cc: Jose Abreu +Signed-off-by: Andrew Morton +Signed-off-by: Arnd Bergmann +Signed-off-by: Linus Torvalds +--- + arch/arm/kernel/traps.c | 1 - + arch/m32r/kernel/traps.c | 1 - + arch/unicore32/kernel/traps.c | 1 - + kernel/exit.c | 1 + + 4 files changed, 1 insertion(+), 3 deletions(-) + +diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c +index 5cf04888c581..3e26c6f7a191 100644 +--- a/arch/arm/kernel/traps.c ++++ b/arch/arm/kernel/traps.c +@@ -793,7 +793,6 @@ void abort(void) + /* if that doesn't kill us, halt */ + panic("Oops failed to kill thread"); + } +-EXPORT_SYMBOL(abort); + + void __init trap_init(void) + { +diff --git a/arch/m32r/kernel/traps.c b/arch/m32r/kernel/traps.c +index cb79fba79d43..b88a8dd14933 100644 +--- a/arch/m32r/kernel/traps.c ++++ b/arch/m32r/kernel/traps.c +@@ -122,7 +122,6 @@ void abort(void) + /* if that doesn't kill us, halt */ + panic("Oops failed to kill thread"); + } +-EXPORT_SYMBOL(abort); + + void __init trap_init(void) + { +diff --git a/arch/unicore32/kernel/traps.c b/arch/unicore32/kernel/traps.c +index 5f25b39f04d4..c4ac6043ebb0 100644 +--- a/arch/unicore32/kernel/traps.c ++++ b/arch/unicore32/kernel/traps.c +@@ -298,7 +298,6 @@ void abort(void) + /* if that doesn't kill us, halt */ + panic("Oops failed to kill thread"); + } +-EXPORT_SYMBOL(abort); + + void __init trap_init(void) + { +diff --git a/kernel/exit.c b/kernel/exit.c +index df0c91d5606c..995453d9fb55 100644 +--- a/kernel/exit.c ++++ b/kernel/exit.c +@@ -1763,3 +1763,4 @@ __weak void abort(void) + /* if that doesn't kill us, halt */ + panic("Oops failed to kill thread"); + } ++EXPORT_SYMBOL(abort); +-- +2.11.0 + -- cgit v1.2.3