linux-kernel - [RFC PATCH V3 35/43] rv64ilp32_abi: net: Use BITS_PER_LONG in struct dst

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20250325121624.523258-36-guoren@kernel.org>
Date: Tue, 25 Mar 2025 08:16:16 -0400
From: guoren@...nel.org
To: arnd@...db.de,
	gregkh@...uxfoundation.org,
	torvalds@...ux-foundation.org,
	paul.walmsley@...ive.com,
	palmer@...belt.com,
	anup@...infault.org,
	atishp@...shpatra.org,
	oleg@...hat.com,
	kees@...nel.org,
	tglx@...utronix.de,
	will@...nel.org,
	mark.rutland@....com,
	brauner@...nel.org,
	akpm@...ux-foundation.org,
	rostedt@...dmis.org,
	edumazet@...gle.com,
	unicorn_wang@...look.com,
	inochiama@...look.com,
	gaohan@...as.ac.cn,
	shihua@...as.ac.cn,
	jiawei@...as.ac.cn,
	wuwei2016@...as.ac.cn,
	drew@...7.com,
	prabhakar.mahadev-lad.rj@...renesas.com,
	ctsai390@...estech.com,
	wefu@...hat.com,
	kuba@...nel.org,
	pabeni@...hat.com,
	josef@...icpanda.com,
	dsterba@...e.com,
	mingo@...hat.com,
	peterz@...radead.org,
	boqun.feng@...il.com,
	guoren@...nel.org,
	xiao.w.wang@...el.com,
	qingfang.deng@...lower.com.cn,
	leobras@...hat.com,
	jszhang@...nel.org,
	conor.dooley@...rochip.com,
	samuel.holland@...ive.com,
	yongxuan.wang@...ive.com,
	luxu.kernel@...edance.com,
	david@...hat.com,
	ruanjinjie@...wei.com,
	cuiyunhui@...edance.com,
	wangkefeng.wang@...wei.com,
	qiaozhe@...as.ac.cn
Cc: ardb@...nel.org,
	ast@...nel.org,
	linux-kernel@...r.kernel.org,
	linux-riscv@...ts.infradead.org,
	kvm@...r.kernel.org,
	kvm-riscv@...ts.infradead.org,
	linux-mm@...ck.org,
	linux-crypto@...r.kernel.org,
	bpf@...r.kernel.org,
	linux-input@...r.kernel.org,
	linux-perf-users@...r.kernel.org,
	linux-serial@...r.kernel.org,
	linux-fsdevel@...r.kernel.org,
	linux-arch@...r.kernel.org,
	maple-tree@...ts.infradead.org,
	linux-trace-kernel@...r.kernel.org,
	netdev@...r.kernel.org,
	linux-atm-general@...ts.sourceforge.net,
	linux-btrfs@...r.kernel.org,
	netfilter-devel@...r.kernel.org,
	coreteam@...filter.org,
	linux-nfs@...r.kernel.org,
	linux-sctp@...r.kernel.org,
	linux-usb@...r.kernel.org,
	linux-media@...r.kernel.org
Subject: [RFC PATCH V3 35/43] rv64ilp32_abi: net: Use BITS_PER_LONG in struct dst_entry

From: "Guo Ren (Alibaba DAMO Academy)" <guoren@...nel.org>

The rv64ilp32 ABI depends on CONFIG_64BIT for its ILP32 data type,
which is smaller. To align with ILP32 requirements, CONFIG_64BIT
was changed to BITS_PER_LONG in struct dts_entry.

Signed-off-by: Guo Ren (Alibaba DAMO Academy) <guoren@...nel.org>
---
 include/net/dst.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/include/net/dst.h b/include/net/dst.h
index 78c78cdce0e9..af1c74c4836e 100644
--- a/include/net/dst.h
+++ b/include/net/dst.h
@@ -65,7 +65,7 @@ struct dst_entry {
 	 * __rcuref wants to be on a different cache line from
 	 * input/output/ops or performance tanks badly
 	 */
-#ifdef CONFIG_64BIT
+#if BITS_PER_LONG == 64
 	rcuref_t		__rcuref;	/* 64-bit offset 64 */
 #endif
 	int			__use;
@@ -74,7 +74,7 @@ struct dst_entry {
 	short			error;
 	short			__pad;
 	__u32			tclassid;
-#ifndef CONFIG_64BIT
+#if BITS_PER_LONG == 32
 	struct lwtunnel_state   *lwtstate;
 	rcuref_t		__rcuref;	/* 32-bit offset 64 */
 #endif
@@ -89,7 +89,7 @@ struct dst_entry {
 	 */
 	struct list_head	rt_uncached;
 	struct uncached_list	*rt_uncached_list;
-#ifdef CONFIG_64BIT
+#if BITS_PER_LONG == 64
 	struct lwtunnel_state   *lwtstate;
 #endif
 };
-- 
2.40.1