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authorSang-Heon Jeon <ekffu200098@gmail.com>2026-08-24 01:18:14 +0900
committerJulia Lawall <Julia.Lawall@inria.fr>2026-08-23 22:12:11 +0200
commit2bd30b8dc75b823dd7bbef9d7bc68e1fd7ecee5c (patch)
treedcc4da1d99f17541c5590ac63c77da4bf372a4ab /arch/xtensa/lib/umodsi3.S
downloadlinux-stable-2bd30b8dc75b823dd7bbef9d7bc68e1fd7ecee5c.tar.gz
linux-stable-2bd30b8dc75b823dd7bbef9d7bc68e1fd7ecee5c.zip
coccinelle: alloc_cast: drop removed allocatorsgrafted
- pci_alloc_consistent() and pci_zalloc_consistent() were removed by commit 7968778914e5 ("PCI: Remove the deprecated "pci-dma-compat.h" API") - kmem_alloc() was removed by commit f078d4ea8276 ("xfs: convert kmem_alloc() to kmalloc()") - kmem_zalloc() was removed by commit 10634530f7ba ("xfs: convert kmem_zalloc() to kzalloc()") - kmem_zone_alloc() and kmem_zone_zalloc() were removed by commit bae633a4a283 ("xfs: remove xfs_zone_{alloc,zalloc} helpers") So drop them from the rules. No functional change. Signed-off-by: Sang-Heon Jeon <ekffu200098@gmail.com> Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Diffstat (limited to 'arch/xtensa/lib/umodsi3.S')
-rw-r--r--arch/xtensa/lib/umodsi3.S58
1 files changed, 58 insertions, 0 deletions
diff --git a/arch/xtensa/lib/umodsi3.S b/arch/xtensa/lib/umodsi3.S
new file mode 100644
index 000000000..d39a7e56a
--- /dev/null
+++ b/arch/xtensa/lib/umodsi3.S
@@ -0,0 +1,58 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later WITH GCC-exception-2.0 */
+#include <linux/linkage.h>
+#include <asm/asmmacro.h>
+#include <asm/core.h>
+
+ENTRY(__umodsi3)
+
+ abi_entry_default
+#if XCHAL_HAVE_DIV32
+ remu a2, a2, a3
+#else
+ bltui a3, 2, .Lle_one /* check if the divisor is <= 1 */
+
+ do_nsau a5, a2, a6, a7 /* dividend_shift = nsau (dividend) */
+ do_nsau a4, a3, a6, a7 /* divisor_shift = nsau (divisor) */
+ bgeu a5, a4, .Lspecial
+
+ sub a4, a4, a5 /* count = divisor_shift - dividend_shift */
+ ssl a4
+ sll a3, a3 /* divisor <<= count */
+
+ /* test-subtract-and-shift loop */
+#if XCHAL_HAVE_LOOPS
+ loopnez a4, .Lloopend
+#endif /* XCHAL_HAVE_LOOPS */
+.Lloop:
+ bltu a2, a3, .Lzerobit
+ sub a2, a2, a3
+.Lzerobit:
+ srli a3, a3, 1
+#if !XCHAL_HAVE_LOOPS
+ addi a4, a4, -1
+ bnez a4, .Lloop
+#endif /* !XCHAL_HAVE_LOOPS */
+.Lloopend:
+
+.Lspecial:
+ bltu a2, a3, .Lreturn
+ sub a2, a2, a3 /* subtract once more if dividend >= divisor */
+.Lreturn:
+ abi_ret_default
+
+.Lle_one:
+ bnez a3, .Lreturn0
+
+ /* Divide by zero: Use an illegal instruction to force an exception.
+ The subsequent "DIV0" string can be recognized by the exception
+ handler to identify the real cause of the exception. */
+ ill
+ .ascii "DIV0"
+
+.Lreturn0:
+ movi a2, 0
+#endif /* XCHAL_HAVE_DIV32 */
+ abi_ret_default
+
+ENDPROC(__umodsi3)
+EXPORT_SYMBOL(__umodsi3)