systemd/coccinelle/iovec-make.cocci
Frantisek Sumsal b3bfb95178 coccinelle: don't run iovec-make on iovec_done{,_erase}
As the result is a bit funky (but still valid), i.e.:

 static inline void iovec_done_erase(struct iovec *iovec) {
         assert(iovec);

-        iovec->iov_base = erase_and_free(iovec->iov_base);
-        iovec->iov_len = 0;
+        *iovec = IOVEC_MAKE(erase_and_free(iovec->iov_base), 0);
 }
2023-10-25 11:16:37 +02:00

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/* SPDX-License-Identifier: LGPL-2.1-or-later */
@@
expression x, y, p, l;
@@
- x[y].iov_base = p;
- x[y].iov_len = l;
- y++;
+ x[y++] = IOVEC_MAKE(p, l);
@@
expression x, p, l;
@@
- x.iov_base = p;
- x.iov_len = l;
+ x = IOVEC_MAKE(p, l);
@@
/* Don't run this transformation on iovec_done() and iovec_done_erase(),
* since the result, albeit correct, is a bit funky. */
position pos : script:python() { pos[0].current_element != "iovec_done" and
pos[0].current_element != "iovec_done_erase" };
expression x, p, l;
@@
- x->iov_base@pos = p;
- x->iov_len = l;
+ *x = IOVEC_MAKE(p, l);
@@
expression s;
@@
- IOVEC_MAKE(s, strlen(s));
+ IOVEC_MAKE_STRING(s);
@@
expression x, y, z;
@@
- x = (struct iovec) { .iov_base = y, .iov_len = z };
+ x = IOVEC_MAKE(y, z);