diff mbox series

[v9,7/9] Bluetooth: btintel: Reorganized bootloader mode tlv checks in intel_version_tlv parsing

Message ID 20210315174002.1778447-7-luiz.dentz@gmail.com (mailing list archive)
State Accepted
Delegated to: Marcel Holtmann
Headers show
Series [v9,1/9] Bluetooth: btintel: Check firmware version before download | expand

Commit Message

Luiz Augusto von Dentz March 15, 2021, 5:40 p.m. UTC 
From: Lokendra Singh <lokendra.singh@intel.com>

This moves limited_cce and sbe_type checks under bootloader during tlv parsing
as operational firmware don't have access to these values. Any attempt to read
such values in operational firmware will only fetch garbage data.

Signed-off-by: Lokendra Singh <lokendra.singh@intel.com>
Signed-off-by: Kiran K <kiran.k@intel.com>
---
 drivers/bluetooth/btintel.c | 34 +++++++++++++++++-----------------
 drivers/bluetooth/btintel.h |  8 ++++----
 2 files changed, 21 insertions(+), 21 deletions(-)

Comments

kernel test robot March 17, 2021, 10:07 a.m. UTC | #1 
Hi Luiz,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on bluetooth-next/master]
[also build test ERROR on next-20210316]
[cannot apply to v5.12-rc3]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Luiz-Augusto-von-Dentz/Bluetooth-btintel-Check-firmware-version-before-download/20210316-014342
base:   https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git master
config: x86_64-randconfig-a011-20210317 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 8ef111222a3dd12a9175f69c3bff598c46e8bdf7)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # install x86_64 cross compiling tool for clang build
        # apt-get install binutils-x86-64-linux-gnu
        # https://github.com/0day-ci/linux/commit/a6cfd08052b877b40b8fe958148f5d0da7e5cff7
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Luiz-Augusto-von-Dentz/Bluetooth-btintel-Check-firmware-version-before-download/20210316-014342
        git checkout a6cfd08052b877b40b8fe958148f5d0da7e5cff7
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   In file included from drivers/bluetooth/hci_ldisc.c:34:
>> drivers/bluetooth/btintel.h:217:1: error: non-void function does not return a value [-Werror,-Wreturn-type]
   }
   ^
   drivers/bluetooth/btintel.h:222:1: error: non-void function does not return a value [-Werror,-Wreturn-type]
   }
   ^
   2 errors generated.


vim +217 drivers/bluetooth/btintel.h

973bb97e5aee56 Marcel Holtmann 2015-07-05  213  
a6cfd08052b877 Lokendra Singh  2021-03-15  214  static inline int btintel_version_info(struct hci_dev *hdev,
0eee53cdd98577 Vincent Stehlé  2015-09-03  215  				       struct intel_version *ver)
7feb99e1308204 Marcel Holtmann 2015-07-05  216  {
7feb99e1308204 Marcel Holtmann 2015-07-05 @217  }
7feb99e1308204 Marcel Holtmann 2015-07-05  218  

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
diff mbox series

Patch

diff --git a/drivers/bluetooth/btintel.c b/drivers/bluetooth/btintel.c
index bddaa4f32566..4ddbf895c382 100644
--- a/drivers/bluetooth/btintel.c
+++ b/drivers/bluetooth/btintel.c
@@ -434,26 +434,26 @@  int btintel_version_info_tlv(struct hci_dev *hdev, struct intel_version_tlv *ver
 		return -EINVAL;
 	}
 
-	/* It is required that every single firmware fragment is acknowledged
-	 * with a command complete event. If the boot parameters indicate
-	 * that this bootloader does not send them, then abort the setup.
-	 */
-	if (version->limited_cce != 0x00) {
-		bt_dev_err(hdev, "Unsupported Intel firmware loading method (0x%x)",
-			   version->limited_cce);
-		return -EINVAL;
-	}
-
-	/* Secure boot engine type should be either 1 (ECDSA) or 0 (RSA) */
-	if (version->sbe_type > 0x01) {
-		bt_dev_err(hdev, "Unsupported Intel secure boot engine type (0x%x)",
-			   version->sbe_type);
-		return -EINVAL;
-	}
-
 	switch (version->img_type) {
 	case 0x01:
 		variant = "Bootloader";
+		/* It is required that every single firmware fragment is acknowledged
+		 * with a command complete event. If the boot parameters indicate
+		 * that this bootloader does not send them, then abort the setup.
+		 */
+		if (version->limited_cce != 0x00) {
+			bt_dev_err(hdev, "Unsupported Intel firmware loading method (0x%x)",
+				   version->limited_cce);
+			return -EINVAL;
+		}
+
+		/* Secure boot engine type should be either 1 (ECDSA) or 0 (RSA) */
+		if (version->sbe_type > 0x01) {
+			bt_dev_err(hdev, "Unsupported Intel secure boot engine type (0x%x)",
+				   version->sbe_type);
+			return -EINVAL;
+		}
+
 		bt_dev_info(hdev, "Device revision is %u", version->dev_rev_id);
 		bt_dev_info(hdev, "Secure boot is %s",
 			    version->secure_boot ? "enabled" : "disabled");
diff --git a/drivers/bluetooth/btintel.h b/drivers/bluetooth/btintel.h
index 7163170410a8..b34165a474c5 100644
--- a/drivers/bluetooth/btintel.h
+++ b/drivers/bluetooth/btintel.h
@@ -211,13 +211,13 @@  static inline void btintel_hw_error(struct hci_dev *hdev, u8 code)
 {
 }
 
-static inline void btintel_version_info(struct hci_dev *hdev,
-					struct intel_version *ver)
+static inline int btintel_version_info(struct hci_dev *hdev,
+				       struct intel_version *ver)
 {
 }
 
-static inline void btintel_version_info_tlv(struct hci_dev *hdev,
-					    struct intel_version_tlv *version)
+static inline int btintel_version_info_tlv(struct hci_dev *hdev,
+					   struct intel_version_tlv *version)
 {
 }