HCoop / bpt / coccinelle.git / blame
| Commit | Line | Data |
|---|---|---|
| 34e49164 C |
1 | // sgrep |
| 2 | ||
| 3 | // Case 1: search for irq functions where interrupt.h is not used | |
| 4 | // these might be ok as is, because some definitions of request_irq still | |
| 5 | // have the pt_regs parameter in the signature | |
| 6 | ||
| 7 | @ rule1 @ | |
| 8 | @@ | |
| 9 | ||
| 10 | #include <linux/interrupt.h> | |
| 11 | ||
| 12 | @ rule2 depends on !rule1 @ | |
| 13 | expression irq; | |
| 14 | identifier handler; | |
| 15 | expression irqflags; | |
| 16 | expression devname; | |
| 17 | expression dev_id; | |
| 18 | @@ | |
| 19 | ||
| 20 | request_irq(irq, handler, irqflags, devname, dev_id) | |
| 21 | ||
| 22 | @@ | |
| 23 | identifier rule2.handler, irq, dev, regs; | |
| 24 | @@ | |
| 25 | ||
| 26 | * handler(int irq, void *dev, struct pt_regs *regs) | |
| 27 | { ... } | |
| 28 | ||
| 29 | // ---------------------------------------------------------------------- | |
| 30 | ||
| 31 | // Case 2: the function is not static. This only works when there is no | |
| 32 | // static handler function in the file, but fortunately this is the case | |
| 33 | // (we have detected this by actually doing the transformation, which makes | |
| 34 | // the second rule no longer match; unfortunately there is no disjunction | |
| 35 | // at the function level) | |
| 36 | ||
| 37 | @ rule3 depends on rule1 @ | |
| 38 | expression irq; | |
| 39 | identifier handler; | |
| 40 | expression irqflags; | |
| 41 | expression devname; | |
| 42 | expression dev_id; | |
| 43 | @@ | |
| 44 | ||
| 45 | request_irq(irq, handler, irqflags, devname, dev_id) | |
| 46 | ||
| 47 | @ rule4 @ | |
| 48 | typedef irqreturn_t; | |
| 49 | identifier rule3.handler, irq, dev, regs; | |
| 50 | @@ | |
| 51 | ||
| 52 | static irqreturn_t handler(int irq, void *dev, struct pt_regs *regs) | |
| 53 | { ... } | |
| 54 | ||
| 55 | @ rule5 depends on !rule4 @ | |
| 56 | identifier rule3.handler, irq, dev, regs; | |
| 57 | @@ | |
| 58 | ||
| 59 | * handler(int irq, void *dev, struct pt_regs *regs) | |
| 60 | { ... } | |
| 61 | ||
| 62 | // ---------------------------------------------------------------------- | |
| 63 | ||
| 64 | // Case 3: the code contains a reference to the regs parameter | |
| 65 | ||
| 66 | @@ | |
| 67 | identifier rule3.handler, irq, dev, regs; | |
| 68 | int E; | |
| 69 | @@ | |
| 70 | ||
| 71 | handler(int irq, void *dev, struct pt_regs *regs) | |
| 72 | { | |
| 73 | <... | |
| 74 | ( | |
| 75 | handle_irq(E,regs) | |
| 76 | | | |
| 77 | * regs | |
| 78 | ) | |
| 79 | ...> | |
| 80 | } |