From 6f467986cf9f2108ca9835e9587e472271b96c30 Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Mon, 16 Apr 2018 11:24:24 -0500 Subject: signal/microblaze: Use force_sig_fault where appropriate Filling in struct siginfo before calling force_sig_info a tedious and error prone process, where once in a great while the wrong fields are filled out, and siginfo has been inconsistently cleared. Simplify this process by using the helper force_sig_fault. Which takes as a parameters all of the information it needs, ensures all of the fiddly bits of filling in struct siginfo are done properly and then calls force_sig_info. In short about a 5 line reduction in code for every time force_sig_info is called, which makes the calling function clearer. Cc: Michal Simek Signed-off-by: "Eric W. Biederman" --- arch/microblaze/kernel/exceptions.c | 9 +-------- arch/microblaze/mm/fault.c | 9 +-------- 2 files changed, 2 insertions(+), 16 deletions(-) (limited to 'arch') diff --git a/arch/microblaze/kernel/exceptions.c b/arch/microblaze/kernel/exceptions.c index 443ec1feacb4..eafff21fcb0e 100644 --- a/arch/microblaze/kernel/exceptions.c +++ b/arch/microblaze/kernel/exceptions.c @@ -60,17 +60,10 @@ asmlinkage void sw_exception(struct pt_regs *regs) void _exception(int signr, struct pt_regs *regs, int code, unsigned long addr) { - siginfo_t info; - if (kernel_mode(regs)) die("Exception in kernel mode", regs, signr); - clear_siginfo(&info); - info.si_signo = signr; - info.si_errno = 0; - info.si_code = code; - info.si_addr = (void __user *) addr; - force_sig_info(signr, &info, current); + force_sig_fault(signr, code, (void __user *)addr, current); } asmlinkage void full_exception(struct pt_regs *regs, unsigned int type, diff --git a/arch/microblaze/mm/fault.c b/arch/microblaze/mm/fault.c index 1251d380df47..af607447c683 100644 --- a/arch/microblaze/mm/fault.c +++ b/arch/microblaze/mm/fault.c @@ -289,14 +289,7 @@ out_of_memory: do_sigbus: up_read(&mm->mmap_sem); if (user_mode(regs)) { - siginfo_t info; - - clear_siginfo(&info); - info.si_signo = SIGBUS; - info.si_errno = 0; - info.si_code = BUS_ADRERR; - info.si_addr = (void __user *)address; - force_sig_info(SIGBUS, &info, current); + force_sig_fault(SIGBUS, BUS_ADRERR, (void __user *)address, current); return; } bad_page_fault(regs, address, SIGBUS); -- cgit v1.2.3