From: Enrico Scholz <enrico.scholz@sigma-chemnitz.de>
To: barebox@lists.infradead.org
Cc: Enrico Scholz <enrico.scholz@sigma-chemnitz.de>
Subject: [PATCH v3 16/18] tftp: add debug_assert() macro
Date: Mon, 15 Aug 2022 10:42:20 +0200 [thread overview]
Message-ID: <95e801df3c5721741516bf930275238fc853026e.1660552646.git.enrico.scholz@sigma-chemnitz.de> (raw)
In-Reply-To: <cover.1660552646.git.enrico.scholz@sigma-chemnitz.de>
Is a noop in normal cases (when compiler sees that condition can be
evaluated without sideeffects) but allows optimizations based on the
condition.
E.g. in
| void foo(int a)
| {
| debug_assert(a == 23);
|
| if (a == 23)
| return;
|
| bar();
| }
the call to 'bar()' will be optimized away.
Signed-off-by: Enrico Scholz <enrico.scholz@sigma-chemnitz.de>
---
fs/tftp.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/fs/tftp.c b/fs/tftp.c
index c96c8917633a..d02ca750cd6d 100644
--- a/fs/tftp.c
+++ b/fs/tftp.c
@@ -75,6 +75,15 @@
#define TFTP_ERR_RESEND 1
+#ifdef DEBUG
+# define debug_assert(_cond) BUG_ON(!(_cond))
+#else
+# define debug_assert(_cond) do { \
+ if (!(_cond)) \
+ __builtin_unreachable(); \
+ } while (0)
+#endif
+
static int g_tftp_window_size = DIV_ROUND_UP(TFTP_MAX_WINDOW_SIZE, 2);
struct file_priv {
--
2.37.1
next prev parent reply other threads:[~2022-08-15 8:46 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-15 8:42 [PATCH v3 00/18] add "windowsize" (RFC 7440) support for tftp Enrico Scholz
2022-08-15 8:42 ` [PATCH v3 01/18] progress: add close_progress() to display some statistics Enrico Scholz
2022-08-19 7:21 ` Sascha Hauer
2022-08-19 7:53 ` Enrico Scholz
2022-08-15 8:42 ` [PATCH v3 02/18] libfile:copy_file: show statistics in verbose mode Enrico Scholz
2022-08-15 8:42 ` [PATCH v3 03/18] tftp: add some 'const' annotations Enrico Scholz
2022-08-15 8:42 ` [PATCH v3 04/18] tftp: allow to change tftp port Enrico Scholz
2022-08-15 8:42 ` [PATCH v3 05/18] cmd:tftp: add '-P' option to set tftp server port number Enrico Scholz
2022-08-15 8:42 ` [PATCH v3 06/18] tftp: minor refactoring of RRQ/WRQ packet generation code Enrico Scholz
2022-08-15 8:42 ` [PATCH v3 07/18] tftp: replace hardcoded blksize by global constant Enrico Scholz
2022-08-15 8:42 ` [PATCH v3 08/18] tftp: allocate buffers and fifo dynamically Enrico Scholz
2022-08-15 8:42 ` [PATCH v3 09/18] tftp: add sanity check for OACK response Enrico Scholz
2022-08-15 8:42 ` [PATCH v3 10/18] tftp: record whether tftp file is opened for lookup operation only Enrico Scholz
2022-08-15 8:42 ` [PATCH v3 11/18] tftp: reduce block size on lookup requests Enrico Scholz
2022-08-15 8:42 ` [PATCH v3 12/18] tftp: refactor data processing Enrico Scholz
2022-08-15 8:42 ` [PATCH v3 13/18] tftp: detect out-of-memory situations Enrico Scholz
2022-08-15 8:42 ` [PATCH v3 14/18] tftp: implement 'windowsize' (RFC 7440) support Enrico Scholz
2022-08-15 8:42 ` [PATCH v3 15/18] tftp: do not use 'priv->block' for RRQ Enrico Scholz
2022-08-15 8:42 ` Enrico Scholz [this message]
2022-08-15 8:42 ` [PATCH v3 17/18] tftp: reorder tftp packets Enrico Scholz
2022-08-15 8:42 ` [PATCH v3 18/18] tftp: add selftest Enrico Scholz
2022-08-16 9:19 ` [PATCH v3 00/18] add "windowsize" (RFC 7440) support for tftp Sascha Hauer
2022-08-16 9:40 ` Enrico Scholz
2022-08-19 7:10 ` Sascha Hauer
2022-08-19 7:22 ` Sascha Hauer
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