linux-kernel - [GIT PULL] EFI changes for v5.14

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Message-ID: <YNlh7jolB04h6z0h@gmail.com>
Date:   Mon, 28 Jun 2021 07:45:18 +0200
From:   Ingo Molnar <mingo@...nel.org>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     linux-kernel@...r.kernel.org, Ard Biesheuvel <ardb@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Borislav Petkov <bp@...en8.de>, peters@...il.com,
        Andrew Morton <akpm@...ux-foundation.org>,
        linux-efi@...r.kernel.org
Subject: [GIT PULL] EFI changes for v5.14

Linus,

Please pull the latest efi/core git tree from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git efi-core-2021-06-28

   # HEAD: 267be9dbacf4485f7842a3755eef4bb68dc85fc9 Merge tag 'efi-next-for-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi into efi/core

EFI changes: two driver API cleanups, and a log message tweak.

 Thanks,

	Ingo

------------------>
Andy Shevchenko (1):
      efi/dev-path-parser: Switch to use for_each_acpi_dev_match()

Heikki Krogerus (1):
      efi/apple-properties: Handle device properties with software node API

Paul Menzel (1):
      x86/efi: Log 32/64-bit mismatch with kernel as an error


 arch/x86/platform/efi/efi.c             |  2 +-
 drivers/firmware/efi/apple-properties.c |  2 +-
 drivers/firmware/efi/dev-path-parser.c  | 49 ++++++++++++---------------------
 3 files changed, 20 insertions(+), 33 deletions(-)

diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c
index 8a26e705cb06..147c30a81f15 100644
--- a/arch/x86/platform/efi/efi.c
+++ b/arch/x86/platform/efi/efi.c
@@ -468,7 +468,7 @@ void __init efi_init(void)
 	 */
 
 	if (!efi_runtime_supported())
-		pr_info("No EFI runtime due to 32/64-bit mismatch with kernel\n");
+		pr_err("No EFI runtime due to 32/64-bit mismatch with kernel\n");
 
 	if (!efi_runtime_supported() || efi_runtime_disabled()) {
 		efi_memmap_unmap();
diff --git a/drivers/firmware/efi/apple-properties.c b/drivers/firmware/efi/apple-properties.c
index e1926483ae2f..4c3201e290e2 100644
--- a/drivers/firmware/efi/apple-properties.c
+++ b/drivers/firmware/efi/apple-properties.c
@@ -157,7 +157,7 @@ static int __init unmarshal_devices(struct properties_header *properties)
 		if (!entry[0].name)
 			goto skip_device;
 
-		ret = device_add_properties(dev, entry); /* makes deep copy */
+		ret = device_create_managed_software_node(dev, entry, NULL);
 		if (ret)
 			dev_err(dev, "error %d assigning properties\n", ret);
 
diff --git a/drivers/firmware/efi/dev-path-parser.c b/drivers/firmware/efi/dev-path-parser.c
index 5c9625e552f4..10d4457417a4 100644
--- a/drivers/firmware/efi/dev-path-parser.c
+++ b/drivers/firmware/efi/dev-path-parser.c
@@ -12,52 +12,39 @@
 #include <linux/efi.h>
 #include <linux/pci.h>
 
-struct acpi_hid_uid {
-	struct acpi_device_id hid[2];
-	char uid[11]; /* UINT_MAX + null byte */
-};
-
-static int __init match_acpi_dev(struct device *dev, const void *data)
-{
-	struct acpi_hid_uid hid_uid = *(const struct acpi_hid_uid *)data;
-	struct acpi_device *adev = to_acpi_device(dev);
-
-	if (acpi_match_device_ids(adev, hid_uid.hid))
-		return 0;
-
-	if (adev->pnp.unique_id)
-		return !strcmp(adev->pnp.unique_id, hid_uid.uid);
-	else
-		return !strcmp("0", hid_uid.uid);
-}
-
 static long __init parse_acpi_path(const struct efi_dev_path *node,
 				   struct device *parent, struct device **child)
 {
-	struct acpi_hid_uid hid_uid = {};
+	char hid[ACPI_ID_LEN], uid[11]; /* UINT_MAX + null byte */
+	struct acpi_device *adev;
 	struct device *phys_dev;
 
 	if (node->header.length != 12)
 		return -EINVAL;
 
-	sprintf(hid_uid.hid[0].id, "%c%c%c%04X",
+	sprintf(hid, "%c%c%c%04X",
 		'A' + ((node->acpi.hid >> 10) & 0x1f) - 1,
 		'A' + ((node->acpi.hid >>  5) & 0x1f) - 1,
 		'A' + ((node->acpi.hid >>  0) & 0x1f) - 1,
 			node->acpi.hid >> 16);
-	sprintf(hid_uid.uid, "%u", node->acpi.uid);
-
-	*child = bus_find_device(&acpi_bus_type, NULL, &hid_uid,
-				 match_acpi_dev);
-	if (!*child)
+	sprintf(uid, "%u", node->acpi.uid);
+
+	for_each_acpi_dev_match(adev, hid, NULL, -1) {
+		if (adev->pnp.unique_id && !strcmp(adev->pnp.unique_id, uid))
+			break;
+		if (!adev->pnp.unique_id && node->acpi.uid == 0)
+			break;
+		acpi_dev_put(adev);
+	}
+	if (!adev)
 		return -ENODEV;
 
-	phys_dev = acpi_get_first_physical_node(to_acpi_device(*child));
+	phys_dev = acpi_get_first_physical_node(adev);
 	if (phys_dev) {
-		get_device(phys_dev);
-		put_device(*child);
-		*child = phys_dev;
-	}
+		*child = get_device(phys_dev);
+		acpi_dev_put(adev);
+	} else
+		*child = &adev->dev;
 
 	return 0;
 }