From 3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Wed, 2 Sep 2026 15:31:14 -0700 Subject: treewide: refresh kmalloc_obj() conversions 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 --- lib/zlib_dfltcc/dfltcc.c | 40 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 lib/zlib_dfltcc/dfltcc.c (limited to 'lib/zlib_dfltcc/dfltcc.c') 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 +#include +#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"); -- cgit v1.3.1