Patch "wifi: ath9k: fix clang-specific fortify warnings" has been added to the 6.1-stable tree

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This is a note to let you know that I've just added the patch titled

    wifi: ath9k: fix clang-specific fortify warnings

to the 6.1-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     wifi-ath9k-fix-clang-specific-fortify-warnings.patch
and it can be found in the queue-6.1 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 9447376d2496ab0209f2643b1ae1c5ee10fae910
Author: Dmitry Antipov <dmantipov@xxxxxxxxx>
Date:   Tue Aug 29 12:38:12 2023 +0300

    wifi: ath9k: fix clang-specific fortify warnings
    
    [ Upstream commit 95f97fe0ac974467ab4da215985a32b2fdf48af0 ]
    
    When compiling with clang 16.0.6 and CONFIG_FORTIFY_SOURCE=y, I've
    noticed the following (somewhat confusing due to absence of an actual
    source code location):
    
    In file included from drivers/net/wireless/ath/ath9k/debug.c:17:
    In file included from ./include/linux/slab.h:16:
    In file included from ./include/linux/gfp.h:7:
    In file included from ./include/linux/mmzone.h:8:
    In file included from ./include/linux/spinlock.h:56:
    In file included from ./include/linux/preempt.h:79:
    In file included from ./arch/x86/include/asm/preempt.h:9:
    In file included from ./include/linux/thread_info.h:60:
    In file included from ./arch/x86/include/asm/thread_info.h:53:
    In file included from ./arch/x86/include/asm/cpufeature.h:5:
    In file included from ./arch/x86/include/asm/processor.h:23:
    In file included from ./arch/x86/include/asm/msr.h:11:
    In file included from ./arch/x86/include/asm/cpumask.h:5:
    In file included from ./include/linux/cpumask.h:12:
    In file included from ./include/linux/bitmap.h:11:
    In file included from ./include/linux/string.h:254:
    ./include/linux/fortify-string.h:592:4: warning: call to '__read_overflow2_field'
    declared with 'warning' attribute: detected read beyond size of field (2nd
    parameter); maybe use struct_group()? [-Wattribute-warning]
                            __read_overflow2_field(q_size_field, size);
    
    In file included from drivers/net/wireless/ath/ath9k/htc_drv_debug.c:17:
    In file included from drivers/net/wireless/ath/ath9k/htc.h:20:
    In file included from ./include/linux/module.h:13:
    In file included from ./include/linux/stat.h:19:
    In file included from ./include/linux/time.h:60:
    In file included from ./include/linux/time32.h:13:
    In file included from ./include/linux/timex.h:67:
    In file included from ./arch/x86/include/asm/timex.h:5:
    In file included from ./arch/x86/include/asm/processor.h:23:
    In file included from ./arch/x86/include/asm/msr.h:11:
    In file included from ./arch/x86/include/asm/cpumask.h:5:
    In file included from ./include/linux/cpumask.h:12:
    In file included from ./include/linux/bitmap.h:11:
    In file included from ./include/linux/string.h:254:
    ./include/linux/fortify-string.h:592:4: warning: call to '__read_overflow2_field'
    declared with 'warning' attribute: detected read beyond size of field (2nd
    parameter); maybe use struct_group()? [-Wattribute-warning]
                            __read_overflow2_field(q_size_field, size);
    
    The compiler actually complains on 'ath9k_get_et_strings()' and
    'ath9k_htc_get_et_strings()' due to the same reason: fortification logic
    inteprets call to 'memcpy()' as an attempt to copy the whole array from
    it's first member and so issues an overread warning. These warnings may
    be silenced by passing an address of the whole array and not the first
    member to 'memcpy()'.
    
    Signed-off-by: Dmitry Antipov <dmantipov@xxxxxxxxx>
    Acked-by: Toke Høiland-Jørgensen <toke@xxxxxxx>
    Signed-off-by: Kalle Valo <quic_kvalo@xxxxxxxxxxx>
    Link: https://lore.kernel.org/r/20230829093856.234584-1-dmantipov@xxxxxxxxx
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c
index fb7a2952d0ce8..d9bac1c343490 100644
--- a/drivers/net/wireless/ath/ath9k/debug.c
+++ b/drivers/net/wireless/ath/ath9k/debug.c
@@ -1333,7 +1333,7 @@ void ath9k_get_et_strings(struct ieee80211_hw *hw,
 			  u32 sset, u8 *data)
 {
 	if (sset == ETH_SS_STATS)
-		memcpy(data, *ath9k_gstrings_stats,
+		memcpy(data, ath9k_gstrings_stats,
 		       sizeof(ath9k_gstrings_stats));
 }
 
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_debug.c b/drivers/net/wireless/ath/ath9k/htc_drv_debug.c
index c55aab01fff5d..e79bbcd3279af 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_debug.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_debug.c
@@ -428,7 +428,7 @@ void ath9k_htc_get_et_strings(struct ieee80211_hw *hw,
 			      u32 sset, u8 *data)
 {
 	if (sset == ETH_SS_STATS)
-		memcpy(data, *ath9k_htc_gstrings_stats,
+		memcpy(data, ath9k_htc_gstrings_stats,
 		       sizeof(ath9k_htc_gstrings_stats));
 }
 



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