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Date: Tue, 15 Feb 2022 10:26:57 -0500 From: Sasha Levin <sashal@...nel.org> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org Cc: Jing Leng <jleng@...arella.com>, Masahiro Yamada <masahiroy@...nel.org>, Sasha Levin <sashal@...nel.org>, linux-kbuild@...r.kernel.org Subject: [PATCH AUTOSEL 5.16 34/34] kconfig: fix failing to generate auto.conf From: Jing Leng <jleng@...arella.com> [ Upstream commit 1b9e740a81f91ae338b29ed70455719804957b80 ] When the KCONFIG_AUTOCONFIG is specified (e.g. export \ KCONFIG_AUTOCONFIG=output/config/auto.conf), the directory of include/config/ will not be created, so kconfig can't create deps files in it and auto.conf can't be generated. Signed-off-by: Jing Leng <jleng@...arella.com> Signed-off-by: Masahiro Yamada <masahiroy@...nel.org> Signed-off-by: Sasha Levin <sashal@...nel.org> --- scripts/kconfig/confdata.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c index 42bc56ee238c8..8954e28a225cb 100644 --- a/scripts/kconfig/confdata.c +++ b/scripts/kconfig/confdata.c @@ -992,14 +992,19 @@ static int conf_write_autoconf_cmd(const char *autoconf_name) static int conf_touch_deps(void) { - const char *name; + const char *name, *tmp; struct symbol *sym; int res, i; - strcpy(depfile_path, "include/config/"); - depfile_prefix_len = strlen(depfile_path); - name = conf_get_autoconfig_name(); + tmp = strrchr(name, '/'); + depfile_prefix_len = tmp ? tmp - name + 1 : 0; + if (depfile_prefix_len + 1 > sizeof(depfile_path)) + return -1; + + strncpy(depfile_path, name, depfile_prefix_len); + depfile_path[depfile_prefix_len] = 0; + conf_read_simple(name, S_DEF_AUTO); sym_calc_value(modules_sym); -- 2.34.1
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