4.19-stable review patch. If anyone has any objections, please let me know.
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From: Mauricio Faria de Oliveira mfo@canonical.com
[ Upstream commit cbc3d00cf88fda95dbcafee3b38655b7a8f2650a ]
Without this 'else' statement, an "usb" name goes into two handlers: the first/previous 'if' statement _AND_ the for-loop over 'devtable', but the latter is useless as it has no 'usb' device_id entry anyway.
Tested with allmodconfig before/after patch; no changes to *.mod.c:
git checkout v6.6-rc3 make -j$(nproc) allmodconfig make -j$(nproc) olddefconfig
make -j$(nproc) find . -name '*.mod.c' | cpio -pd /tmp/before
# apply patch
make -j$(nproc) find . -name '*.mod.c' | cpio -pd /tmp/after
diff -r /tmp/before/ /tmp/after/ # no difference
Fixes: acbef7b76629 ("modpost: fix module autoloading for OF devices with generic compatible property") Signed-off-by: Mauricio Faria de Oliveira mfo@canonical.com Signed-off-by: Masahiro Yamada masahiroy@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- scripts/mod/file2alias.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c index 7f40b6aab689b..90868df7865e3 100644 --- a/scripts/mod/file2alias.c +++ b/scripts/mod/file2alias.c @@ -1395,7 +1395,7 @@ void handle_moddevtable(struct module *mod, struct elf_info *info, /* First handle the "special" cases */ if (sym_is(name, namelen, "usb")) do_usb_table(symval, sym->st_size, mod); - if (sym_is(name, namelen, "of")) + else if (sym_is(name, namelen, "of")) do_of_table(symval, sym->st_size, mod); else if (sym_is(name, namelen, "pnp")) do_pnp_device_entry(symval, sym->st_size, mod);