5.15-stable review patch. If anyone has any objections, please let me know.
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From: Thomas Gleixner tglx@linutronix.de
[ Upstream commit 7912405643a14b527cd4a4f33c1d4392da900888 ]
The compiler can fully inline the actual handler function of an interrupt entry into the .irqentry.text entry point. If such a function contains an access which has an exception table entry, modpost complains about a section mismatch:
WARNING: vmlinux.o(__ex_table+0x447c): Section mismatch in reference ...
The relocation at __ex_table+0x447c references section ".irqentry.text" which is not in the list of authorized sections.
Add .irqentry.text to OTHER_SECTIONS to cure the issue.
Reported-by: Sergey Senozhatsky senozhatsky@chromium.org Signed-off-by: Thomas Gleixner tglx@linutronix.de Cc: stable@vger.kernel.org # needed for linux-5.4-y Link: https://lore.kernel.org/all/20241128111844.GE10431@google.com/ Signed-off-by: Masahiro Yamada masahiroy@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- scripts/mod/modpost.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c index 43bacdee5cc5d..a663a0ea4066b 100644 --- a/scripts/mod/modpost.c +++ b/scripts/mod/modpost.c @@ -940,7 +940,7 @@ static void check_section(const char *modname, struct elf_info *elf, ".kprobes.text", ".cpuidle.text", ".noinstr.text" #define OTHER_TEXT_SECTIONS ".ref.text", ".head.text", ".spinlock.text", \ ".fixup", ".entry.text", ".exception.text", \ - ".coldtext", ".softirqentry.text" + ".coldtext", ".softirqentry.text", ".irqentry.text"
#define INIT_SECTIONS ".init.*" #define MEM_INIT_SECTIONS ".meminit.*"