* [merged mm-nonmm-stable] lib-kconfigdebug-cleanup-config_debug_section_mismatch-help-text.patch removed from -mm tree
@ 2025-11-20 22:04 Andrew Morton
0 siblings, 0 replies; only message in thread
From: Andrew Morton @ 2025-11-20 22:04 UTC (permalink / raw)
To: mm-commits, bp, akpm
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
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2025-11-20 22:04 UTC | newest]
Thread overview: (only message) (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2025-11-20 22:04 [merged mm-nonmm-stable] lib-kconfigdebug-cleanup-config_debug_section_mismatch-help-text.patch removed from -mm tree Andrew Morton
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.