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[v3,02/19] coccinelle: misc: Add secs_to_jiffies script

Message ID 20241210-converge-secs-to-jiffies-v3-2-ddfefd7e9f2a@linux.microsoft.com (mailing list archive)
State Not Applicable
Headers show
Series Converge on using secs_to_jiffies() | expand

Checks

Context Check Description
netdev/series_format fail Series longer than 15 patches
netdev/tree_selection success Guessed tree name to be net-next
netdev/ynl success Generated files up to date; no warnings/errors; no diff in generated;
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
netdev/build_tools success No tools touched, skip
netdev/cc_maintainers success CCed 4 of 4 maintainers
netdev/build_clang success Errors and warnings before: 1 this patch: 1
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 5 this patch: 5
netdev/checkpatch warning WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Easwar Hariharan Dec. 10, 2024, 10:02 p.m. UTC 
This script finds and suggests conversions of timeout patterns that
result in seconds-denominated timeouts to use the new secs_to_jiffies()
API in include/linux/jiffies.h for better readability.

Suggested-by: Anna-Maria Behnsen <anna-maria@linutronix.de>
Signed-off-by: Easwar Hariharan <eahariha@linux.microsoft.com>
---
 scripts/coccinelle/misc/secs_to_jiffies.cocci | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
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Patch

diff --git a/scripts/coccinelle/misc/secs_to_jiffies.cocci b/scripts/coccinelle/misc/secs_to_jiffies.cocci
new file mode 100644
index 0000000000000000000000000000000000000000..8bbb2884ea5db939c63fd4513cf5ca8c977aa8cb
--- /dev/null
+++ b/scripts/coccinelle/misc/secs_to_jiffies.cocci
@@ -0,0 +1,22 @@ 
+// SPDX-License-Identifier: GPL-2.0-only
+///
+/// Find usages of:
+/// - msecs_to_jiffies(value*1000)
+/// - msecs_to_jiffies(value*MSEC_PER_SEC)
+///
+// Confidence: High
+// Copyright: (C) 2024 Easwar Hariharan, Microsoft
+// Keywords: secs, seconds, jiffies
+//
+
+virtual patch
+
+@depends on patch@ constant C; @@
+
+- msecs_to_jiffies(C * 1000)
++ secs_to_jiffies(C)
+
+@depends on patch@ constant C; @@
+
+- msecs_to_jiffies(C * MSEC_PER_SEC)
++ secs_to_jiffies(C)