From: Jisheng Zhang <jszhang@kernel.org>
To: Paul Walmsley <paul.walmsley@sifive.com>,
Palmer Dabbelt <palmer@dabbelt.com>,
Albert Ou <aou@eecs.berkeley.edu>,
Charlie Jenkins <charlie@rivosinc.com>,
Deepak Gupta <debug@rivosinc.com>,
Clement Leger <cleger@rivosinc.com>
Cc: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: [PATCH v2 7/7] riscv: traps: mark do_irq() as __always_inline
Date: Sun, 21 Jul 2024 01:12:32 +0800 [thread overview]
Message-ID: <20240720171232.1753-8-jszhang@kernel.org> (raw)
In-Reply-To: <20240720171232.1753-1-jszhang@kernel.org>
Since do_irq() is only called in traps.c, so mark it as __always_inline
this will allow the compiler to get rid of the stack setup/tear down
code and eliminate a handful of instructions.
Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
---
arch/riscv/kernel/traps.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/riscv/kernel/traps.c b/arch/riscv/kernel/traps.c
index dc1bc84cfe15..030c50cb4e78 100644
--- a/arch/riscv/kernel/traps.c
+++ b/arch/riscv/kernel/traps.c
@@ -378,7 +378,7 @@ static void noinstr handle_riscv_irq(struct pt_regs *regs)
irq_exit_rcu();
}
-static void noinstr do_irq(struct pt_regs *regs)
+static __always_inline void do_irq(struct pt_regs *regs)
{
irqentry_state_t state = irqentry_enter(regs);
--
2.43.0
_______________________________________________
linux-riscv mailing list
linux-riscv@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-riscv
prev parent reply other threads:[~2024-07-20 17:27 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-07-20 17:12 [PATCH v2 0/7] riscv: convert bottom half of exception handling to C Jisheng Zhang
2024-07-20 17:12 ` [PATCH v2 1/7] riscv: traps: staticalize handle_break() Jisheng Zhang
2024-07-20 17:12 ` [PATCH v2 2/7] riscv: traps: remove __visible annotation Jisheng Zhang
2024-07-20 17:12 ` [PATCH v2 3/7] riscv: convert bottom half of exception handling to C Jisheng Zhang
2024-11-26 0:08 ` Deepak Gupta
2024-07-20 17:12 ` [PATCH v2 4/7] riscv: errata: remove ALT_INSN_FAULT and ALT_PAGE_FAULT Jisheng Zhang
2024-07-20 17:12 ` [PATCH v2 5/7] riscv: errata: sifive: remove NOMMU handling Jisheng Zhang
2024-07-20 17:12 ` [PATCH v2 6/7] riscv: staticalize and remove asmlinkage from updated functions Jisheng Zhang
2024-07-20 17:12 ` Jisheng Zhang [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20240720171232.1753-8-jszhang@kernel.org \
--to=jszhang@kernel.org \
--cc=aou@eecs.berkeley.edu \
--cc=charlie@rivosinc.com \
--cc=cleger@rivosinc.com \
--cc=debug@rivosinc.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-riscv@lists.infradead.org \
--cc=palmer@dabbelt.com \
--cc=paul.walmsley@sifive.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).