| Message ID | 20241021143419.587716-2-dmantipov@yandex.ru (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | [1/2] wifi: ath12k: annotate skb of struct ath12k_ce_ring with __counted_by | expand |
Hi Dmitry, kernel test robot noticed the following build errors: [auto build test ERROR on ath/ath-next] [also build test ERROR on wireless-next/main wireless/main linus/master v6.12-rc4 next-20241022] [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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Dmitry-Antipov/wifi-ath12k-annotate-channel-of-struct-ath12k_wmi_scan_chan_list_arg-with-__counted_by/20241021-223544 base: https://git.kernel.org/pub/scm/linux/kernel/git/ath/ath.git ath-next patch link: https://lore.kernel.org/r/20241021143419.587716-2-dmantipov%40yandex.ru patch subject: [PATCH 2/2] wifi: ath12k: annotate channel of struct ath12k_wmi_scan_chan_list_arg with __counted_by config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20241023/202410231916.Wjn5HeB6-lkp@intel.com/config) compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241023/202410231916.Wjn5HeB6-lkp@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202410231916.Wjn5HeB6-lkp@intel.com/ All errors (new ones prefixed by >>): In file included from drivers/net/wireless/ath/ath12k/core.c:12: In file included from drivers/net/wireless/ath/ath12k/core.h:20: >> drivers/net/wireless/ath/ath12k/wmi.h:3749:55: error: use of undeclared identifier 'nallchains'; did you mean 'nallchans'? 3749 | struct ath12k_wmi_channel_arg channel[] __counted_by(nallchains); | ^~~~~~~~~~ | nallchans include/linux/compiler_attributes.h:105:62: note: expanded from macro '__counted_by' 105 | # define __counted_by(member) __attribute__((__counted_by__(member))) | ^ drivers/net/wireless/ath/ath12k/wmi.h:3748:6: note: 'nallchans' declared here 3748 | u16 nallchans; | ^ 1 error generated. vim +3749 drivers/net/wireless/ath/ath12k/wmi.h 3745 3746 struct ath12k_wmi_scan_chan_list_arg { 3747 u32 pdev_id; 3748 u16 nallchans; > 3749 struct ath12k_wmi_channel_arg channel[] __counted_by(nallchains); 3750 }; 3751
On 21/10/24 08:34, Dmitry Antipov wrote: > According to 'ath12k_reg_update_chan_list()', annotate flexible > array member 'channel' of 'struct ath12k_wmi_scan_chan_list_arg' > with '__counted_by()' attribute to improve runtime bounds checking > when CONFIG_UBSAN_BOUNDS is enabled. Compile tested only. It seems you didn't[1] actually build-test this changes. :/ -Gustavo [1] https://lore.kernel.org/linux-hardening/202410231916.Wjn5HeB6-lkp@intel.com/ > > Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru> > --- > drivers/net/wireless/ath/ath12k/wmi.h | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/net/wireless/ath/ath12k/wmi.h b/drivers/net/wireless/ath/ath12k/wmi.h > index 6a913f9b8315..9a6e28142754 100644 > --- a/drivers/net/wireless/ath/ath12k/wmi.h > +++ b/drivers/net/wireless/ath/ath12k/wmi.h > @@ -3746,7 +3746,7 @@ struct wmi_stop_scan_cmd { > struct ath12k_wmi_scan_chan_list_arg { > u32 pdev_id; > u16 nallchans; > - struct ath12k_wmi_channel_arg channel[]; > + struct ath12k_wmi_channel_arg channel[] __counted_by(nallchains); > }; > > struct wmi_scan_chan_list_cmd {
diff --git a/drivers/net/wireless/ath/ath12k/wmi.h b/drivers/net/wireless/ath/ath12k/wmi.h index 6a913f9b8315..9a6e28142754 100644 --- a/drivers/net/wireless/ath/ath12k/wmi.h +++ b/drivers/net/wireless/ath/ath12k/wmi.h @@ -3746,7 +3746,7 @@ struct wmi_stop_scan_cmd { struct ath12k_wmi_scan_chan_list_arg { u32 pdev_id; u16 nallchans; - struct ath12k_wmi_channel_arg channel[]; + struct ath12k_wmi_channel_arg channel[] __counted_by(nallchains); }; struct wmi_scan_chan_list_cmd {
According to 'ath12k_reg_update_chan_list()', annotate flexible array member 'channel' of 'struct ath12k_wmi_scan_chan_list_arg' with '__counted_by()' attribute to improve runtime bounds checking when CONFIG_UBSAN_BOUNDS is enabled. Compile tested only. Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru> --- drivers/net/wireless/ath/ath12k/wmi.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)