regmap: Fix cache lifecycle locking and teardown

Michael Reeves <michael.reeves077@gmail.com> says:

Fix an "Invalid wait context" lockdep warning during Apple GPIO probe and
correct debugfs ordering during cache teardown.

Tested on Apple M3 MacBook Air (T8122):

- All 4 GPIO controllers probe successfully with lockdep enabled.
- The "Invalid wait context" warning no longer occurs.
- The regmap KUnit suite passes and lockdep remains enabled.

Link: https://patch.msgid.link/20261006-regcache-lifecycle-submit-v3-0-37bdd82fd47c@gmail.com

6 files changed, 16 insertions, 10 deletions

diff --git a/scripts/Makefile.asm-headers b/scripts/Makefile.asm-headers
index b38931314ad7..f1c3d287c14b 100644
--- a/scripts/Makefile.asm-headers
+++ b/scripts/Makefile.asm-headers
@@ -48,7 +48,7 @@ syscall-y   := $(addprefix $(obj)/, $(syscall-y))
 generated-y := $(addprefix $(obj)/, $(generated-y))
 
 # Remove stale wrappers when the corresponding files are removed from generic-y
-old-headers := $(shell test -d $(obj) && find $(obj) -name *.h)
+old-headers := $(shell test -d $(obj) && find $(obj) -name '*.h' ! -name '.*')
 unwanted    := $(filter-out $(generic-y) $(generated-y) $(syscall-y),$(old-headers))
 
 filechk_wrap = echo "\#include <asm-generic/$*.h>"
diff --git a/scripts/coccinelle/hid/ff_race.cocci b/scripts/coccinelle/hid/ff_race.cocci
index 479f5d1e3184..e861de00cb10 100644
--- a/scripts/coccinelle/hid/ff_race.cocci
+++ b/scripts/coccinelle/hid/ff_race.cocci
@@ -7,18 +7,19 @@
 
 virtual report
 
-@r@
+@r exists@
 identifier probe_fn;
-expression hdev, flags;
+identifier hdev;
+expression flags;
 position p1, p2;
 @@
 
 probe_fn(struct hid_device *hdev, ...) {
-  <...
+  ... when any
   hid_hw_start@p1(hdev, flags)
   ...
-  \(input_ff_create\|input_ff_create_memless\)@p2(...)
-  ...>
+  \(input_ff_create@p2\|input_ff_create_memless@p2\)(...)
+  ... when any
 }
 
 @script:python depends on report@
diff --git a/scripts/generate_rust_target.rs b/scripts/generate_rust_target.rs
index 3bf296581a88..7687b0dd5474 100644
--- a/scripts/generate_rust_target.rs
+++ b/scripts/generate_rust_target.rs
@@ -224,6 +224,11 @@ fn main() {
             features += ",+harden-sls-ijmp";
             features += ",+harden-sls-ret";
         }
+        if cfg.has("X86_NATIVE_CPU") {
+            // Prevent the backend from generating APX instructions. The kernel is not yet prepared
+            // for general in-kernel EGPR use.
+            features += ",-apxf";
+        }
         ts.push("features", features);
         ts.push("llvm-target", "x86_64-linux-gnu");
         ts.push("supported-sanitizers", ["kcfi", "kernel-address"]);
diff --git a/scripts/livepatch/init.c b/scripts/livepatch/init.c
index f14d8c8fb35f..16aff8f736eb 100644
--- a/scripts/livepatch/init.c
+++ b/scripts/livepatch/init.c
@@ -51,7 +51,7 @@ static int __init livepatch_mod_init(void)
 		if (!funcs) {
 			ret = -ENOMEM;
 			for (int j = 0; j < i; j++)
-				kfree(objs[i].funcs);
+				kfree(objs[j].funcs);
 			goto err_free_objs;
 		}
 
diff --git a/scripts/mksysmap b/scripts/mksysmap
index c4531eacde20..856b26ba2ac0 100755
--- a/scripts/mksysmap
+++ b/scripts/mksysmap
@@ -35,7 +35,7 @@
 / __efistub_/d
 
 # arm64 local symbols in PIE namespace
-/ __pi_\\$/d
+/ __pi_\$/d
 / __pi_\.L/d
 
 # arm64 local symbols in non-VHE KVM namespace
@@ -83,7 +83,7 @@
 / _SDA2_BASE_$/d
 
 # MODULE_INFO()
-/ __UNIQUE_ID_modinfo[0-9]*$/d
+/ __UNIQUE_ID_modinfo_[0-9]*$/d
 
 # ---------------------------------------------------------------------------
 # Ignored patterns
diff --git a/scripts/sorttable.c b/scripts/sorttable.c
index d8dc2a1b7c31..d7b50581c732 100644
--- a/scripts/sorttable.c
+++ b/scripts/sorttable.c
@@ -116,7 +116,7 @@ static inline void *get_index(void *start, int entsize, int index)
 }
 
 static int extable_ent_size;
-static int long_size;
+static int long_size __maybe_unused;
 
 #define ERRSTR_MAXSZ	256