linux-kernel - [RFC PATCH 2/5] kernel: Drop IA64 support from sig

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Date:   Wed, 15 Feb 2023 11:00:05 +0100
From:   Ard Biesheuvel <ardb@...nel.org>
To:     linux-kernel@...r.kernel.org
Cc:     Ard Biesheuvel <ardb@...nel.org>, Jonathan Corbet <corbet@....net>,
        Arnd Bergmann <arnd@...db.de>, Tony Luck <tony.luck@...el.com>,
        Jessica Clarke <jrtc27@...c27.com>,
        John Paul Adrian Glaubitz <glaubitz@...sik.fu-berlin.de>,
        Matthew Wilcox <willy@...radead.org>,
        Marc Zyngier <maz@...nel.org>,
        Guenter Roeck <linux@...ck-us.net>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        linux-ia64@...r.kernel.org
Subject: [RFC PATCH 2/5] kernel: Drop IA64 support from sig_fault handlers

Signed-off-by: Ard Biesheuvel <ardb@...nel.org>
---
 include/linux/sched/signal.h | 17 ++++---------
 kernel/signal.c              | 25 ++++----------------
 2 files changed, 9 insertions(+), 33 deletions(-)

diff --git a/include/linux/sched/signal.h b/include/linux/sched/signal.h
index 20099268fa257f40..6aecfbf823656f6c 100644
--- a/include/linux/sched/signal.h
+++ b/include/linux/sched/signal.h
@@ -303,20 +303,11 @@ static inline void kernel_signal_stop(void)
 
 	schedule();
 }
-#ifdef __ia64__
-# define ___ARCH_SI_IA64(_a1, _a2, _a3) , _a1, _a2, _a3
-#else
-# define ___ARCH_SI_IA64(_a1, _a2, _a3)
-#endif
 
-int force_sig_fault_to_task(int sig, int code, void __user *addr
-	___ARCH_SI_IA64(int imm, unsigned int flags, unsigned long isr)
-	, struct task_struct *t);
-int force_sig_fault(int sig, int code, void __user *addr
-	___ARCH_SI_IA64(int imm, unsigned int flags, unsigned long isr));
-int send_sig_fault(int sig, int code, void __user *addr
-	___ARCH_SI_IA64(int imm, unsigned int flags, unsigned long isr)
-	, struct task_struct *t);
+int force_sig_fault_to_task(int sig, int code, void __user *addr,
+			    struct task_struct *t);
+int force_sig_fault(int sig, int code, void __user *addr);
+int send_sig_fault(int sig, int code, void __user *addr, struct task_struct *t);
 
 int force_sig_mceerr(int code, void __user *, short);
 int send_sig_mceerr(int code, void __user *, short, struct task_struct *);
diff --git a/kernel/signal.c b/kernel/signal.c
index ae26da61c4d9fa6a..5b7f0bf2713901da 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -1701,9 +1701,8 @@ void force_sigsegv(int sig)
 		force_sig(SIGSEGV);
 }
 
-int force_sig_fault_to_task(int sig, int code, void __user *addr
-	___ARCH_SI_IA64(int imm, unsigned int flags, unsigned long isr)
-	, struct task_struct *t)
+int force_sig_fault_to_task(int sig, int code, void __user *addr,
+			    struct task_struct *t)
 {
 	struct kernel_siginfo info;
 
@@ -1712,24 +1711,15 @@ int force_sig_fault_to_task(int sig, int code, void __user *addr
 	info.si_errno = 0;
 	info.si_code  = code;
 	info.si_addr  = addr;
-#ifdef __ia64__
-	info.si_imm = imm;
-	info.si_flags = flags;
-	info.si_isr = isr;
-#endif
 	return force_sig_info_to_task(&info, t, HANDLER_CURRENT);
 }
 
-int force_sig_fault(int sig, int code, void __user *addr
-	___ARCH_SI_IA64(int imm, unsigned int flags, unsigned long isr))
+int force_sig_fault(int sig, int code, void __user *addr)
 {
-	return force_sig_fault_to_task(sig, code, addr
-				       ___ARCH_SI_IA64(imm, flags, isr), current);
+	return force_sig_fault_to_task(sig, code, addr, current);
 }
 
-int send_sig_fault(int sig, int code, void __user *addr
-	___ARCH_SI_IA64(int imm, unsigned int flags, unsigned long isr)
-	, struct task_struct *t)
+int send_sig_fault(int sig, int code, void __user *addr, struct task_struct *t)
 {
 	struct kernel_siginfo info;
 
@@ -1738,11 +1728,6 @@ int send_sig_fault(int sig, int code, void __user *addr
 	info.si_errno = 0;
 	info.si_code  = code;
 	info.si_addr  = addr;
-#ifdef __ia64__
-	info.si_imm = imm;
-	info.si_flags = flags;
-	info.si_isr = isr;
-#endif
 	return send_sig_info(info.si_signo, &info, t);
 }
 
-- 
2.39.1