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Final si_trapno bits
As a part of a fix for the ABI of the newly added SIGTRAP TRAP_PERF a si_trapno was reduced to an ordinary extention of the _sigfault case of struct siginfo. When Linus saw the complete set of changes come in as a fix he requested that the set of changes be trimmed down to just what was necessary to fix the SIGTRAP TRAP_PERF ABI. I had intended to get the rest of the changes into the merge window for v5.14 but I dropped the ball. I have made the changes to stop using __ARCH_SI_TRAPNO be per architecture so they are easier to review. In doing so I found one place on alpha where I used send_sig_fault instead of send_sig_fault_trapno(... si_trapno = 0). That would not have changed the userspace behavior but it did make the kernel code less clear. My rule in these patches is everywhere that siginfo layout calls for SIL_FAULT_TRAPNO the code uses either force_sig_fault_trapno or send_sig_fault_trapno. And of course I have rebased and compile tested Marco's compile time assert patches. v1: https://lkml.kernel.org/r/m1zgxfs7zq.fsf_-_@fess.ebiederm.org v2: https://lkml.kernel.org/r/m14kfjh8et.fsf_-_@fess.ebiederm.org v3: https://lkml.kernel.org/r/m1tuni8ano.fsf_-_@fess.ebiederm.org v4: https://lkml.kernel.org/r/m1a6ot5e2h.fsf_-_@fess.ebiederm.org Link: https://lkml.kernel.org/r/87a6mnzbx2.fsf_-_@disp2133 Eric W. Biederman (5): signal/sparc: si_trapno is only used with SIGILL ILL_ILLTRP signal/alpha: si_trapno is only used with SIGFPE and SIGTRAP TRAP_UNK signal: Remove the generic __ARCH_SI_TRAPNO support signal: Verify the alignment and size of siginfo_t signal: Rename SIL_PERF_EVENT SIL_FAULT_PERF_EVENT for consistency Marco Elver (3): sparc64: Add compile-time asserts for siginfo_t offsets arm: Add compile-time asserts for siginfo_t offsets arm64: Add compile-time asserts for siginfo_t offsets arch/alpha/include/uapi/asm/siginfo.h | 2 -- arch/alpha/kernel/osf_sys.c | 2 +- arch/alpha/kernel/signal.c | 4 +-- arch/alpha/kernel/traps.c | 26 +++++++-------- arch/alpha/mm/fault.c | 4 +-- arch/arm/kernel/signal.c | 39 ++++++++++++++++++++++ arch/arm64/kernel/signal.c | 39 ++++++++++++++++++++++ arch/arm64/kernel/signal32.c | 39 ++++++++++++++++++++++ arch/mips/include/uapi/asm/siginfo.h | 2 -- arch/sparc/include/uapi/asm/siginfo.h | 3 -- arch/sparc/kernel/process_64.c | 2 +- arch/sparc/kernel/signal32.c | 37 +++++++++++++++++++++ arch/sparc/kernel/signal_64.c | 36 ++++++++++++++++++++ arch/sparc/kernel/sys_sparc_32.c | 2 +- arch/sparc/kernel/sys_sparc_64.c | 2 +- arch/sparc/kernel/traps_32.c | 22 ++++++------- arch/sparc/kernel/traps_64.c | 44 +++++++++++-------------- arch/sparc/kernel/unaligned_32.c | 2 +- arch/sparc/mm/fault_32.c | 2 +- arch/sparc/mm/fault_64.c | 2 +- arch/x86/kernel/signal_compat.c | 6 ++++ fs/signalfd.c | 4 +-- include/linux/sched/signal.h | 11 ++----- include/linux/signal.h | 2 +- include/uapi/asm-generic/siginfo.h | 5 +++ kernel/signal.c | 62 +++++++++++++++++++++++++---------- 26 files changed, 305 insertions(+), 96 deletions(-)