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-rw-r--r--Documentation/admin-guide/README.rst11
-rw-r--r--scripts/kconfig/Makefile11
-rw-r--r--scripts/kconfig/menu.c3
-rw-r--r--scripts/kconfig/parser.y30
-rwxr-xr-xscripts/kconfig/streamline_config.pl21
-rw-r--r--scripts/kconfig/symbol.c2
-rw-r--r--scripts/kconfig/tests/rand_nested_choice/Kconfig35
-rw-r--r--scripts/kconfig/tests/rand_nested_choice/__init__.py17
-rw-r--r--scripts/kconfig/tests/rand_nested_choice/expected_stdout02
-rw-r--r--scripts/kconfig/tests/rand_nested_choice/expected_stdout14
-rw-r--r--scripts/kconfig/tests/rand_nested_choice/expected_stdout25
11 files changed, 55 insertions, 86 deletions
diff --git a/Documentation/admin-guide/README.rst b/Documentation/admin-guide/README.rst
index cc6151fc0845..5fb526900023 100644
--- a/Documentation/admin-guide/README.rst
+++ b/Documentation/admin-guide/README.rst
@@ -209,15 +209,22 @@ Configuring the kernel
store the lsmod of that machine into a file
and pass it in as a LSMOD parameter.
+ Also, you can preserve modules in certain folders
+ or kconfig files by specifying their paths in
+ parameter LMC_KEEP.
+
target$ lsmod > /tmp/mylsmod
target$ scp /tmp/mylsmod host:/tmp
- host$ make LSMOD=/tmp/mylsmod localmodconfig
+ host$ make LSMOD=/tmp/mylsmod \
+ LMC_KEEP="drivers/usb:drivers/gpu:fs" \
+ localmodconfig
The above also works when cross compiling.
"make localyesconfig" Similar to localmodconfig, except it will convert
- all module options to built in (=y) options.
+ all module options to built in (=y) options. You can
+ also preserve modules by LMC_KEEP.
"make kvmconfig" Enable additional options for kvm guest kernel support.
diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile
index c9d0a4a8efb3..426881ea954f 100644
--- a/scripts/kconfig/Makefile
+++ b/scripts/kconfig/Makefile
@@ -96,11 +96,13 @@ configfiles=$(wildcard $(srctree)/kernel/configs/$@ $(srctree)/arch/$(SRCARCH)/c
PHONY += kvmconfig
kvmconfig: kvm_guest.config
- @:
+ @echo >&2 "WARNING: 'make $@' will be removed after Linux 5.10"
+ @echo >&2 " Please use 'make $<' instead."
PHONY += xenconfig
xenconfig: xen.config
- @:
+ @echo >&2 "WARNING: 'make $@' will be removed after Linux 5.10"
+ @echo >&2 " Please use 'make $<' instead."
PHONY += tinyconfig
tinyconfig:
@@ -123,7 +125,9 @@ help:
@echo ' gconfig - Update current config utilising a GTK+ based front-end'
@echo ' oldconfig - Update current config utilising a provided .config as base'
@echo ' localmodconfig - Update current config disabling modules not loaded'
+ @echo ' except those preserved by LMC_KEEP environment variable'
@echo ' localyesconfig - Update current config converting local mods to core'
+ @echo ' except those preserved by LMC_KEEP environment variable'
@echo ' defconfig - New config with default from ARCH supplied defconfig'
@echo ' savedefconfig - Save current config as ./defconfig (minimal config)'
@echo ' allnoconfig - New config where all options are answered with no'
@@ -137,9 +141,6 @@ help:
@echo ' helpnewconfig - List new options and help text'
@echo ' olddefconfig - Same as oldconfig but sets new symbols to their'
@echo ' default value without prompting'
- @echo ' kvmconfig - Enable additional options for kvm guest kernel support'
- @echo ' xenconfig - Enable additional options for xen dom0 and guest kernel'
- @echo ' support'
@echo ' tinyconfig - Configure the tiniest possible kernel'
@echo ' testconfig - Run Kconfig unit tests (requires python3 and pytest)'
diff --git a/scripts/kconfig/menu.c b/scripts/kconfig/menu.c
index e436ba44c9c5..a5fbd6ccc006 100644
--- a/scripts/kconfig/menu.c
+++ b/scripts/kconfig/menu.c
@@ -65,7 +65,8 @@ void menu_add_entry(struct symbol *sym)
struct menu *menu_add_menu(void)
{
last_entry_ptr = &current_entry->list;
- return current_menu = current_entry;
+ current_menu = current_entry;
+ return current_menu;
}
void menu_end_menu(void)
diff --git a/scripts/kconfig/parser.y b/scripts/kconfig/parser.y
index 708b6c4b13ca..190f1117f35a 100644
--- a/scripts/kconfig/parser.y
+++ b/scripts/kconfig/parser.y
@@ -119,20 +119,24 @@ mainmenu_stmt: T_MAINMENU T_WORD_QUOTE T_EOL
stmt_list:
/* empty */
- | stmt_list common_stmt
+ | stmt_list assignment_stmt
| stmt_list choice_stmt
+ | stmt_list comment_stmt
+ | stmt_list config_stmt
+ | stmt_list if_stmt
| stmt_list menu_stmt
+ | stmt_list menuconfig_stmt
+ | stmt_list source_stmt
| stmt_list T_WORD error T_EOL { zconf_error("unknown statement \"%s\"", $2); }
| stmt_list error T_EOL { zconf_error("invalid statement"); }
;
-common_stmt:
- if_stmt
- | comment_stmt
- | config_stmt
- | menuconfig_stmt
- | source_stmt
- | assignment_stmt
+stmt_list_in_choice:
+ /* empty */
+ | stmt_list_in_choice comment_stmt
+ | stmt_list_in_choice config_stmt
+ | stmt_list_in_choice if_stmt_in_choice
+ | stmt_list_in_choice error T_EOL { zconf_error("invalid statement"); }
;
/* config/menuconfig entry */
@@ -254,7 +258,7 @@ choice_end: end
}
};
-choice_stmt: choice_entry choice_block choice_end
+choice_stmt: choice_entry stmt_list_in_choice choice_end
;
choice_option_list:
@@ -305,11 +309,6 @@ default:
| T_DEF_BOOL { $$ = S_BOOLEAN; }
| T_DEF_TRISTATE { $$ = S_TRISTATE; }
-choice_block:
- /* empty */
- | choice_block common_stmt
-;
-
/* if entry */
if_entry: T_IF expr T_EOL
@@ -331,6 +330,9 @@ if_end: end
if_stmt: if_entry stmt_list if_end
;
+if_stmt_in_choice: if_entry stmt_list_in_choice if_end
+;
+
/* menu entry */
menu: T_MENU T_WORD_QUOTE T_EOL
diff --git a/scripts/kconfig/streamline_config.pl b/scripts/kconfig/streamline_config.pl
index e2f8504f5a2d..19857d18d814 100755
--- a/scripts/kconfig/streamline_config.pl
+++ b/scripts/kconfig/streamline_config.pl
@@ -143,6 +143,7 @@ my %depends;
my %selects;
my %prompts;
my %objects;
+my %config2kfile;
my $var;
my $iflevel = 0;
my @ifdeps;
@@ -201,6 +202,7 @@ sub read_kconfig {
if (/^\s*(menu)?config\s+(\S+)\s*$/) {
$state = "NEW";
$config = $2;
+ $config2kfile{"CONFIG_$config"} = $kconfig;
# Add depends for 'if' nesting
for (my $i = 0; $i < $iflevel; $i++) {
@@ -591,6 +593,20 @@ while ($repeat) {
}
my %setconfigs;
+my @preserved_kconfigs = split(/:/,$ENV{LMC_KEEP});
+
+sub in_preserved_kconfigs {
+ my $kconfig = $config2kfile{$_[0]};
+ if (!defined($kconfig)) {
+ return 0;
+ }
+ foreach my $excl (@preserved_kconfigs) {
+ if($kconfig =~ /^$excl/) {
+ return 1;
+ }
+ }
+ return 0;
+}
# Finally, read the .config file and turn off any module enabled that
# we could not find a reason to keep enabled.
@@ -644,6 +660,11 @@ foreach my $line (@config_file) {
}
if (/^(CONFIG.*)=(m|y)/) {
+ if (in_preserved_kconfigs($1)) {
+ dprint "Preserve config $1";
+ print;
+ next;
+ }
if (defined($configs{$1})) {
if ($localyesconfig) {
$setconfigs{$1} = 'y';
diff --git a/scripts/kconfig/symbol.c b/scripts/kconfig/symbol.c
index 3dc81397d003..9363e37b8870 100644
--- a/scripts/kconfig/symbol.c
+++ b/scripts/kconfig/symbol.c
@@ -831,7 +831,7 @@ struct symbol *sym_lookup(const char *name, int flags)
memset(symbol, 0, sizeof(*symbol));
symbol->name = new_name;
symbol->type = S_UNKNOWN;
- symbol->flags |= flags;
+ symbol->flags = flags;
symbol->next = symbol_hash[hash];
symbol_hash[hash] = symbol;
diff --git a/scripts/kconfig/tests/rand_nested_choice/Kconfig b/scripts/kconfig/tests/rand_nested_choice/Kconfig
deleted file mode 100644
index 8350de7f732b..000000000000
--- a/scripts/kconfig/tests/rand_nested_choice/Kconfig
+++ /dev/null
@@ -1,35 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0
-
-choice
- prompt "choice"
-
-config A
- bool "A"
-
-config B
- bool "B"
-
-if B
-choice
- prompt "sub choice"
-
-config C
- bool "C"
-
-config D
- bool "D"
-
-if D
-choice
- prompt "subsub choice"
-
-config E
- bool "E"
-
-endchoice
-endif # D
-
-endchoice
-endif # B
-
-endchoice
diff --git a/scripts/kconfig/tests/rand_nested_choice/__init__.py b/scripts/kconfig/tests/rand_nested_choice/__init__.py
deleted file mode 100644
index 9e4b2db53581..000000000000
--- a/scripts/kconfig/tests/rand_nested_choice/__init__.py
+++ /dev/null
@@ -1,17 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0
-"""
-Set random values recursively in nested choices.
-
-Kconfig can create a choice-in-choice structure by using 'if' statement.
-randconfig should correctly set random choice values.
-
-Related Linux commit: 3b9a19e08960e5cdad5253998637653e592a3c29
-"""
-
-
-def test(conf):
- for i in range(20):
- assert conf.randconfig() == 0
- assert (conf.config_contains('expected_stdout0') or
- conf.config_contains('expected_stdout1') or
- conf.config_contains('expected_stdout2'))
diff --git a/scripts/kconfig/tests/rand_nested_choice/expected_stdout0 b/scripts/kconfig/tests/rand_nested_choice/expected_stdout0
deleted file mode 100644
index 05450f3d4eb5..000000000000
--- a/scripts/kconfig/tests/rand_nested_choice/expected_stdout0
+++ /dev/null
@@ -1,2 +0,0 @@
-CONFIG_A=y
-# CONFIG_B is not set
diff --git a/scripts/kconfig/tests/rand_nested_choice/expected_stdout1 b/scripts/kconfig/tests/rand_nested_choice/expected_stdout1
deleted file mode 100644
index 37ab29584157..000000000000
--- a/scripts/kconfig/tests/rand_nested_choice/expected_stdout1
+++ /dev/null
@@ -1,4 +0,0 @@
-# CONFIG_A is not set
-CONFIG_B=y
-CONFIG_C=y
-# CONFIG_D is not set
diff --git a/scripts/kconfig/tests/rand_nested_choice/expected_stdout2 b/scripts/kconfig/tests/rand_nested_choice/expected_stdout2
deleted file mode 100644
index 849ff47e9848..000000000000
--- a/scripts/kconfig/tests/rand_nested_choice/expected_stdout2
+++ /dev/null
@@ -1,5 +0,0 @@
-# CONFIG_A is not set
-CONFIG_B=y
-# CONFIG_C is not set
-CONFIG_D=y
-CONFIG_E=y
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-27 17:33:14 +0000