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authorKees Cook <kees+treewide@kernel.org>2026-09-02 15:31:14 -0700
committerKees Cook <kees@kernel.org>2026-09-04 21:37:00 -0700
commit3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d (patch)
treec65086f9bdcd48c6360fb7cb4598bca084da1f32 /lib/zlib_dfltcc/dfltcc.c
downloadlinux-stable-3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d.tar.gz
linux-stable-3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d.zip
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>
Diffstat (limited to 'lib/zlib_dfltcc/dfltcc.c')
-rw-r--r--lib/zlib_dfltcc/dfltcc.c40
1 files changed, 40 insertions, 0 deletions
diff --git a/lib/zlib_dfltcc/dfltcc.c b/lib/zlib_dfltcc/dfltcc.c
new file mode 100644
index 000000000..ac6ac9739
--- /dev/null
+++ b/lib/zlib_dfltcc/dfltcc.c
@@ -0,0 +1,40 @@
+// SPDX-License-Identifier: Zlib
+/* dfltcc.c - SystemZ DEFLATE CONVERSION CALL support. */
+
+#include <linux/export.h>
+#include <linux/module.h>
+#include "dfltcc_util.h"
+#include "dfltcc.h"
+
+char *oesc_msg(
+ char *buf,
+ int oesc
+)
+{
+ if (oesc == 0x00)
+ return NULL; /* Successful completion */
+ else {
+#ifdef STATIC
+ return NULL; /* Ignore for pre-boot decompressor */
+#else
+ sprintf(buf, "Operation-Ending-Supplemental Code is 0x%.2X", oesc);
+ return buf;
+#endif
+ }
+}
+
+void dfltcc_reset_state(struct dfltcc_state *dfltcc_state) {
+ /* Initialize available functions */
+ if (is_dfltcc_enabled()) {
+ dfltcc(DFLTCC_QAF, &dfltcc_state->param, NULL, NULL, NULL, NULL, NULL);
+ memmove(&dfltcc_state->af, &dfltcc_state->param, sizeof(dfltcc_state->af));
+ } else
+ memset(&dfltcc_state->af, 0, sizeof(dfltcc_state->af));
+
+ /* Initialize parameter block */
+ memset(&dfltcc_state->param, 0, sizeof(dfltcc_state->param));
+ dfltcc_state->param.nt = 1;
+ dfltcc_state->param.ribm = DFLTCC_RIBM;
+}
+
+MODULE_LICENSE("GPL");