Patch "ia64, processor: fix -Wincompatible-pointer-types in ia64_get_irr()" has been added to the 5.10-stable tree

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

    ia64, processor: fix -Wincompatible-pointer-types in ia64_get_irr()

to the 5.10-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:
     ia64-processor-fix-wincompatible-pointer-types-in-ia64_get_irr.patch
and it can be found in the queue-5.10 subdirectory.

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


>From e5a16a5c4602c119262f350274021f90465f479d Mon Sep 17 00:00:00 2001
From: Alexander Lobakin <alexandr.lobakin@xxxxxxxxx>
Date: Fri, 24 Jun 2022 14:13:05 +0200
Subject: ia64, processor: fix -Wincompatible-pointer-types in ia64_get_irr()

From: Alexander Lobakin <alexandr.lobakin@xxxxxxxxx>

commit e5a16a5c4602c119262f350274021f90465f479d upstream.

test_bit(), as any other bitmap op, takes `unsigned long *` as a
second argument (pointer to the actual bitmap), as any bitmap
itself is an array of unsigned longs. However, the ia64_get_irr()
code passes a ref to `u64` as a second argument.
This works with the ia64 bitops implementation due to that they
have `void *` as the second argument and then cast it later on.
This works with the bitmap API itself due to that `unsigned long`
has the same size on ia64 as `u64` (`unsigned long long`), but
from the compiler PoV those two are different.
Define @irr as `unsigned long` to fix that. That implies no
functional changes. Has been hidden for 16 years!

Fixes: a58786917ce2 ("[IA64] avoid broken SAL_CACHE_FLUSH implementations")
Cc: stable@xxxxxxxxxxxxxxx # 2.6.16+
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Signed-off-by: Alexander Lobakin <alexandr.lobakin@xxxxxxxxx>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Reviewed-by: Yury Norov <yury.norov@xxxxxxxxx>
Signed-off-by: Yury Norov <yury.norov@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 arch/ia64/include/asm/processor.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/ia64/include/asm/processor.h
+++ b/arch/ia64/include/asm/processor.h
@@ -542,7 +542,7 @@ ia64_get_irr(unsigned int vector)
 {
 	unsigned int reg = vector / 64;
 	unsigned int bit = vector % 64;
-	u64 irr;
+	unsigned long irr;
 
 	switch (reg) {
 	case 0: irr = ia64_getreg(_IA64_REG_CR_IRR0); break;


Patches currently in stable-queue which might be from alexandr.lobakin@xxxxxxxxx are

queue-5.10/ia64-processor-fix-wincompatible-pointer-types-in-ia64_get_irr.patch



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