From: Andrew Morton <akpm@linux-foundation.org>
To: mm-commits@vger.kernel.org,bp@alien8.de,akpm@linux-foundation.org
Subject: [merged mm-nonmm-stable] lib-kconfigdebug-cleanup-config_debug_section_mismatch-help-text.patch removed from -mm tree
Date: Thu, 20 Nov 2025 14:04:18 -0800 [thread overview]
Message-ID: <20251120220419.08DACC4CEF1@smtp.kernel.org> (raw)
The quilt patch titled
Subject: lib/Kconfig.debug: cleanup CONFIG_DEBUG_SECTION_MISMATCH help text
has been removed from the -mm tree. Its filename was
lib-kconfigdebug-cleanup-config_debug_section_mismatch-help-text.patch
This patch was dropped because it was merged into the mm-nonmm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
------------------------------------------------------
From: "Borislav Petkov (AMD)" <bp@alien8.de>
Subject: lib/Kconfig.debug: cleanup CONFIG_DEBUG_SECTION_MISMATCH help text
Date: Wed, 29 Oct 2025 13:27:43 +0100
Simplify formulations, correct flow, split it into proper paragraphs and
update structure.
No functional changes.
Link: https://lkml.kernel.org/r/20251029122743.1110-1-bp@kernel.org
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
lib/Kconfig.debug | 32 ++++++++++++++++----------------
1 file changed, 16 insertions(+), 16 deletions(-)
--- a/lib/Kconfig.debug~lib-kconfigdebug-cleanup-config_debug_section_mismatch-help-text
+++ a/lib/Kconfig.debug
@@ -483,23 +483,23 @@ config DEBUG_SECTION_MISMATCH
bool "Enable full Section mismatch analysis"
depends on CC_IS_GCC
help
- The section mismatch analysis checks if there are illegal
- references from one section to another section.
- During linktime or runtime, some sections are dropped;
- any use of code/data previously in these sections would
- most likely result in an oops.
- In the code, functions and variables are annotated with
- __init,, etc. (see the full list in include/linux/init.h),
- which results in the code/data being placed in specific sections.
+ The section mismatch analysis checks if there are illegal references
+ from one section to another. During linktime or runtime, some
+ sections are dropped; any use of code/data previously in these
+ sections would most likely result in an oops.
+
+ In the code, functions and variables are annotated with __init,
+ __initdata, and so on (see the full list in include/linux/init.h).
+ This directs the toolchain to place code/data in specific sections.
+
The section mismatch analysis is always performed after a full
- kernel build, and enabling this option causes the following
- additional step to occur:
- - Add the option -fno-inline-functions-called-once to gcc commands.
- When inlining a function annotated with __init in a non-init
- function, we would lose the section information and thus
- the analysis would not catch the illegal reference.
- This option tells gcc to inline less (but it does result in
- a larger kernel).
+ kernel build, and enabling this option causes the option
+ -fno-inline-functions-called-once to be added to gcc commands.
+
+ However, when inlining a function annotated with __init in
+ a non-init function, we would lose the section information and thus
+ the analysis would not catch the illegal reference. This option
+ tells gcc to inline less (but it does result in a larger kernel).
config SECTION_MISMATCH_WARN_ONLY
bool "Make section mismatch errors non-fatal"
_
Patches currently in -mm which might be from bp@alien8.de are
reply other threads:[~2025-11-20 22:04 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
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=20251120220419.08DACC4CEF1@smtp.kernel.org \
--to=akpm@linux-foundation.org \
--cc=bp@alien8.de \
--cc=mm-commits@vger.kernel.org \
/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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.