Commit 50cccec1 authored Oct 23, 2023 by Masahiro Yamada

modpost: disallow driver to reference .meminit sections



Drivers must not reference .meminit* sections, which are discarded
when CONFIG_MEMORY_HOTPLUG=n.

The reason for whitelisting "*driver" in the section mismatch check
was to allow drivers to reference symbols annotated as __devinit or
__devexit that existed in the past.

Those annotations were removed by the following commits:

 - 54b956b9 ("Remove __dev* markings from init.h")
 - 92e9e6d1 ("modpost.c: Stop checking __dev* section mismatches")

Remove the stale whitelist.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>

parent 6a4e59ee

scripts/mod/modpost.c

+0 −6

Original line number	Diff line number	Diff line
		@@ -1006,12 +1006,6 @@ static int secref_whitelist(const char fromsec, const char fromsym,
		"*_console")))
		return 0;

		/* symbols in data sections that may refer to meminit sections */
		if (match(fromsec, PATTERNS(DATA_SECTIONS)) &&
		match(tosec, PATTERNS(ALL_XXXINIT_SECTIONS)) &&
		match(fromsym, PATTERNS("*driver")))
		return 0;

		/*
		* symbols in data sections must not refer to .exit.*, but there are
		* quite a few offenders, so hide these unless for W=1 builds until