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authorEric W. Biederman <ebiederm@xmission.com>2018-04-16 11:30:22 -0500
committerEric W. Biederman <ebiederm@xmission.com>2018-04-25 10:44:07 -0500
commit4d6a20b135580092f05baa7beeed218b650768dc (patch)
tree9fb246f56ed0e644cbbda69984f536afa08f8833 /arch/riscv
parentsignal/parisc: Use force_sig_fault where appropriate (diff)
downloadlinux-dev-4d6a20b135580092f05baa7beeed218b650768dc.tar.xz
linux-dev-4d6a20b135580092f05baa7beeed218b650768dc.zip
signal/riscv: 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: Palmer Dabbelt <palmer@sifive.com> Cc: Albert Ou <albert@sifive.com> Cc: linux-riscv@lists.infradead.org Acked-by: Palmer Dabbelt <palmer@sifive.com> Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Diffstat (limited to 'arch/riscv')
-rw-r--r--arch/riscv/kernel/traps.c9
1 files changed, 1 insertions, 8 deletions
diff --git a/arch/riscv/kernel/traps.c b/arch/riscv/kernel/traps.c
index 48aa6471cede..3087940008f4 100644
--- a/arch/riscv/kernel/traps.c
+++ b/arch/riscv/kernel/traps.c
@@ -66,14 +66,7 @@ void die(struct pt_regs *regs, const char *str)
static inline void do_trap_siginfo(int signo, int code,
unsigned long addr, struct task_struct *tsk)
{
- siginfo_t info;
-
- clear_siginfo(&info);
- info.si_signo = signo;
- info.si_errno = 0;
- info.si_code = code;
- info.si_addr = (void __user *)addr;
- force_sig_info(signo, &info, tsk);
+ force_sig_fault(signo, code, (void __user *)addr, tsk);
}
void do_trap(struct pt_regs *regs, int signo, int code,