git: bbd20c0795a7 - main - linuxkpi: Pass a `const void *` to `krealloc()`

The branch main has been updated by dumbbell:

URL: https://cgit.FreeBSD.org/src/commit/?id=bbd20c0795a7df35fc665165bf5f17d7f6533e54

commit bbd20c0795a7df35fc665165bf5f17d7f6533e54
Author:     Jean-Sébastien Pédron <dumbbell@FreeBSD.org>
AuthorDate: 2026-04-13 23:59:09 +0000
Commit:     Jean-Sébastien Pédron <dumbbell@FreeBSD.org>
CommitDate: 2026-04-21 22:18:26 +0000

    linuxkpi: Pass a `const void *` to `krealloc()`
    
    This matches the API on Linux.
    
    Reviewed by:    bz
    Sponsored by:   The FreeBSD Foundation
    Differential Revision: https://reviews.freebsd.org/D56451
---
 sys/compat/linuxkpi/common/include/linux/slab.h | 4 ++--
 sys/compat/linuxkpi/common/src/linux_slab.c     | 6 +++---
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/sys/compat/linuxkpi/common/include/linux/slab.h b/sys/compat/linuxkpi/common/include/linux/slab.h
index 6c05c77819a5..8d023eaddadd 100644
--- a/sys/compat/linuxkpi/common/include/linux/slab.h
+++ b/sys/compat/linuxkpi/common/include/linux/slab.h
@@ -120,7 +120,7 @@ void *lkpi_kmalloc(size_t, gfp_t);
 void *lkpi_kvmalloc(size_t, gfp_t);
 void *lkpi___kmalloc(size_t, gfp_t);
 void *lkpi___kmalloc_node(size_t, gfp_t, int);
-void *lkpi_krealloc(void *, size_t, gfp_t);
+void *lkpi_krealloc(const void *, size_t, gfp_t);
 void lkpi_kfree(const void *);
 
 static inline gfp_t
@@ -166,7 +166,7 @@ kmalloc_node(size_t size, gfp_t flags, int node)
     kmalloc(size_mul((_n) * sizeof(typeof(_p))), default_gfp(__VA_ARGS__))
 
 static inline void *
-krealloc(void *ptr, size_t size, gfp_t flags)
+krealloc(const void *ptr, size_t size, gfp_t flags)
 {
 	return (lkpi_krealloc(ptr, size, flags));
 }
diff --git a/sys/compat/linuxkpi/common/src/linux_slab.c b/sys/compat/linuxkpi/common/src/linux_slab.c
index 6f71d17a3770..96fe74dcd40d 100644
--- a/sys/compat/linuxkpi/common/src/linux_slab.c
+++ b/sys/compat/linuxkpi/common/src/linux_slab.c
@@ -239,7 +239,7 @@ lkpi___kmalloc(size_t size, gfp_t flags)
 }
 
 void *
-lkpi_krealloc(void *ptr, size_t size, gfp_t flags)
+lkpi_krealloc(const void *ptr, size_t size, gfp_t flags)
 {
 	void *nptr;
 	size_t osize;
@@ -252,7 +252,7 @@ lkpi_krealloc(void *ptr, size_t size, gfp_t flags)
 
 	osize = ksize(ptr);
 	if (size <= osize)
-		return (ptr);
+		return (__DECONST(void *, ptr));
 
 	/*
 	 * We know the new size > original size.  realloc(9) does not (and cannot)
@@ -262,7 +262,7 @@ lkpi_krealloc(void *ptr, size_t size, gfp_t flags)
 	 * backing.
 	 */
 	if (size <= PAGE_SIZE)
-		return (realloc(ptr, size, M_KMALLOC, linux_check_m_flags(flags)));
+		return (realloc(__DECONST(void *, ptr), size, M_KMALLOC, linux_check_m_flags(flags)));
 
 	nptr = kmalloc(size, flags);
 	if (nptr == NULL)