From 7f37d88f5cb32fff454f12cd99444686482ca23b Mon Sep 17 00:00:00 2001 From: "Borislav Petkov (AMD)" Date: Wed, 29 Oct 2025 13:27:43 +0100 Subject: [PATCH] lib/Kconfig.debug: cleanup CONFIG_DEBUG_SECTION_MISMATCH help text 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) Signed-off-by: Andrew Morton --- lib/Kconfig.debug | 32 ++++++++++++++++---------------- 1 file changed, 16 insertions(+), 16 deletions(-) diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 19592a57e1ed9..9a087826498a9 100644 --- a/lib/Kconfig.debug +++ b/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" -- 2.47.3