treewide: refresh kmalloc_obj() conversionsgrafted

This is another run of the Coccinelle script for converting kmalloc()
family of allocations to kmalloc_obj() via the existing rules in
scripts/coccinelle/api/kmalloc_objs.cocci

This catches both the set of kmalloc() uses added since the first
kmalloc_obj() conversions in v7.0 and adds a large group missed in the
first pass due to Coccinelle not interacting well with the cleanup.h
scoped_...() family of macros[1]. I worked around this with spatch's
"--macro-file" argument to a file with all the scoped_...() macros mapped
to Coccinelle's YACFE_ITERATOR[2] as that was the closest viable control
flow indicator I could find.

Build tested allmodconfig on x86, arm64, arm, loongarch, mips, powerpc,
riscv, and s390 with no new warnings.

Link: https://lore.kernel.org/lkml/202609021314.8A9C0B8@keescook/ [1]
Link: https://github.com/coccinelle/coccinelle/blob/master/standard.h [2]
Signed-off-by: Kees Cook <kees+treewide@kernel.org>

1 files changed, 59 insertions, 0 deletions

diff --git a/arch/powerpc/math-emu/fdivs.c b/arch/powerpc/math-emu/fdivs.c
new file mode 100644
index 000000000..f9f7adf46
--- /dev/null
+++ b/arch/powerpc/math-emu/fdivs.c
@@ -0,0 +1,59 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/uaccess.h>
+
+#include <asm/sfp-machine.h>
+#include <math-emu/soft-fp.h>
+#include <math-emu/double.h>
+#include <math-emu/single.h>
+
+int
+fdivs(void *frD, void *frA, void *frB)
+{
+	FP_DECL_D(A);
+	FP_DECL_D(B);
+	FP_DECL_D(R);
+	FP_DECL_EX;
+
+#ifdef DEBUG
+	printk("%s: %p %p %p\n", __func__, frD, frA, frB);
+#endif
+
+	FP_UNPACK_DP(A, frA);
+	FP_UNPACK_DP(B, frB);
+
+#ifdef DEBUG
+	printk("A: %ld %lu %lu %ld (%ld)\n", A_s, A_f1, A_f0, A_e, A_c);
+	printk("B: %ld %lu %lu %ld (%ld)\n", B_s, B_f1, B_f0, B_e, B_c);
+#endif
+
+	if (A_c == FP_CLS_ZERO && B_c == FP_CLS_ZERO) {
+		FP_SET_EXCEPTION(EFLAG_VXZDZ);
+#ifdef DEBUG
+		printk("%s: FPSCR_VXZDZ raised\n", __func__);
+#endif
+	}
+	if (A_c == FP_CLS_INF && B_c == FP_CLS_INF) {
+		FP_SET_EXCEPTION(EFLAG_VXIDI);
+#ifdef DEBUG
+		printk("%s: FPSCR_VXIDI raised\n", __func__);
+#endif
+	}
+
+	if (B_c == FP_CLS_ZERO && A_c != FP_CLS_ZERO) {
+		FP_SET_EXCEPTION(EFLAG_DIVZERO);
+		if (__FPU_TRAP_P(EFLAG_DIVZERO))
+			return FP_CUR_EXCEPTIONS;
+	}
+
+	FP_DIV_D(R, A, B);
+
+#ifdef DEBUG
+	printk("D: %ld %lu %lu %ld (%ld)\n", R_s, R_f1, R_f0, R_e, R_c);
+#endif
+
+	__FP_PACK_DS(frD, R);
+
+	return FP_CUR_EXCEPTIONS;
+}