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From: Petr Pavlu <petr.pavlu@suse.com>
To: arnd@arndb.de
Cc: keescook@chromium.org, will@kernel.org, linux-arch@vger.kernel.org,
linux-kernel@vger.kernel.org, Petr Pavlu <petr.pavlu@suse.com>
Subject: [PATCH] vmlinux.lds.h: Remove a reference to no longer used sections
.text..refcount
Date: Tue, 11 Jul 2023 14:50:54 +0200
Message-Id: <20230711125054.9000-1-petr.pavlu@suse.com>
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| Series |
vmlinux.lds.h: Remove a reference to no longer used sections .text..refcount
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Commit Message
Petr Pavlu
July 11, 2023, 12:50 p.m. UTC
Sections .text..refcount were previously used to hold an error path code
for fast refcount overflow protection on x86, see commit 7a46ec0e2f48
("locking/refcounts, x86/asm: Implement fast refcount overflow
protection") and commit 564c9cc84e2a ("locking/refcounts, x86/asm: Use
unique .text section for refcount exceptions").
The code was replaced and removed in commit fb041bb7c0a9
("locking/refcount: Consolidate implementations of refcount_t") and no
sections .text..refcount are present since then.
Remove then a relic referencing these sections from TEXT_TEXT to avoid
confusing people, like me. This is a non-functional change.
Signed-off-by: Petr Pavlu <petr.pavlu@suse.com>
---
include/asm-generic/vmlinux.lds.h | 1 -
1 file changed, 1 deletion(-)
Comments
On Tue, 11 Jul 2023 14:50:54 +0200, Petr Pavlu wrote: > Sections .text..refcount were previously used to hold an error path code > for fast refcount overflow protection on x86, see commit 7a46ec0e2f48 > ("locking/refcounts, x86/asm: Implement fast refcount overflow > protection") and commit 564c9cc84e2a ("locking/refcounts, x86/asm: Use > unique .text section for refcount exceptions"). > > The code was replaced and removed in commit fb041bb7c0a9 > ("locking/refcount: Consolidate implementations of refcount_t") and no > sections .text..refcount are present since then. > > [...] Applied, thanks! [1/1] vmlinux.lds.h: Remove a reference to no longer used sections .text..refcount https://git.kernel.org/kees/c/5fc522485598 Best regards,
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index 0587354ba678..9c59409104f6 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -578,7 +578,6 @@ *(.text.unlikely .text.unlikely.*) \ *(.text.unknown .text.unknown.*) \ NOINSTR_TEXT \ - *(.text..refcount) \ *(.ref.text) \ *(.text.asan.* .text.tsan.*) \ MEM_KEEP(init.text*) \