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// SPDX-License-Identifier: GPL-2.0-only /// Use ARRAY_SIZE instead of dividing sizeof array with sizeof an element /// //# This makes an effort to find cases where ARRAY_SIZE can be used such as //# where there is a division of sizeof the array by the sizeof its first //# element or by any indexed element or the element type. It replaces the //# division of the two sizeofs by ARRAY_SIZE. // // Confidence: High // Copyright: (C) 2014 Himangi Saraogi. // Comments: // Options: --no-includes --include-headers virtual patch virtual context virtual org virtual report @i@ @@ #include <linux/kernel.h> //---------------------------------------------------------- // For context mode //---------------------------------------------------------- @depends on i&&context@ type T; T[] E; @@ ( * (sizeof(E)/sizeof(*E)) | * (sizeof(E)/sizeof(E[...])) | * (sizeof(E)/sizeof(T)) ) //---------------------------------------------------------- // For patch mode //---------------------------------------------------------- @depends on i&&patch@ type T; T[] E; @@ ( - (sizeof(E)/sizeof(*E)) + ARRAY_SIZE(E) | - (sizeof(E)/sizeof(E[...])) + ARRAY_SIZE(E) | - (sizeof(E)/sizeof(T)) + ARRAY_SIZE(E) ) //---------------------------------------------------------- // For org and report mode //---------------------------------------------------------- @r depends on (org || report)@ type T; T[] E; position p; @@ ( (sizeof(E)@p /sizeof(*E)) | (sizeof(E)@p /sizeof(E[...])) | (sizeof(E)@p /sizeof(T)) ) @script:python depends on org@ p << r.p; @@ coccilib.org.print_todo(p[0], "WARNING should use ARRAY_SIZE") @script:python depends on report@ p << r.p; @@ msg="WARNING: Use ARRAY_SIZE" coccilib.report.print_report(p[0], msg)
| Name | Type | Size | Permission | Actions |
|---|---|---|---|---|
| add_namespace.cocci | File | 837 B | 0644 |
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| array_size.cocci | File | 1.69 KB | 0644 |
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| array_size_dup.cocci | File | 4.78 KB | 0644 |
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| badty.cocci | File | 1.69 KB | 0644 |
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| boolconv.cocci | File | 1.47 KB | 0644 |
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| boolreturn.cocci | File | 698 B | 0644 |
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| bugon.cocci | File | 1.48 KB | 0644 |
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| cond_no_effect.cocci | File | 2.07 KB | 0644 |
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| cstptr.cocci | File | 852 B | 0644 |
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| doubleinit.cocci | File | 1.38 KB | 0644 |
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| excluded_middle.cocci | File | 677 B | 0644 |
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| flexible_array.cocci | File | 1.78 KB | 0644 |
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| ifaddr.cocci | File | 684 B | 0644 |
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| ifcol.cocci | File | 1.23 KB | 0644 |
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| irqf_oneshot.cocci | File | 1.96 KB | 0644 |
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| minmax.cocci | File | 3.21 KB | 0644 |
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| newline_in_nl_msg.cocci | File | 1.61 KB | 0644 |
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| noderef.cocci | File | 1.19 KB | 0644 |
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| of_table.cocci | File | 1.33 KB | 0644 |
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| orplus.cocci | File | 1.03 KB | 0644 |
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| returnvar.cocci | File | 1.26 KB | 0644 |
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| semicolon.cocci | File | 1.07 KB | 0644 |
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| swap.cocci | File | 1.48 KB | 0644 |
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| uninitialized_var.cocci | File | 1.59 KB | 0644 |
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| warn.cocci | File | 1.65 KB | 0644 |
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