mirror of
https://github.com/edk2-porting/linux-next.git
synced 2025-01-23 14:13:58 +08:00
14e5ad7d11
The various list iterators are able to handle an empty list. The only effect of avoiding the loop is not initializing some index variables. Drop list_empty tests in cases where these variables are not used. The semantic patch that makes these changes is as follows: (http://coccinelle.lip6.fr/) <smpl> @@ expression x,e; iterator name list_for_each_entry; statement S; identifier i; @@ -if (!(list_empty(x))) { list_for_each_entry(i,x,...) S - } ... when != i ? i = e @@ expression x,e; iterator name list_for_each_entry_safe; statement S; identifier i,j; @@ -if (!(list_empty(x))) { list_for_each_entry_safe(i,j,x,...) S - } ... when != i when != j ( i = e; | ? j = e; ) @@ expression x,e; iterator name list_for_each; statement S; identifier i; @@ -if (!(list_empty(x))) { list_for_each(i,x) S - } ... when != i ? i = e @@ expression x,e; iterator name list_for_each_safe; statement S; identifier i,j; @@ -if (!(list_empty(x))) { list_for_each_safe(i,j,x) S - } ... when != i when != j ( i = e; | ? j = e; ) // ------------------- @@ expression x,e; statement S; identifier i; @@ -if (!(list_empty(x))) list_for_each_entry(i,x,...) S ... when != i ? i = e @@ expression x,e; statement S; identifier i,j; @@ -if (!(list_empty(x))) list_for_each_entry_safe(i,j,x,...) S ... when != i when != j ( i = e; | ? j = e; ) @@ expression x,e; statement S; identifier i; @@ -if (!(list_empty(x))) list_for_each(i,x) S ... when != i ? i = e @@ expression x,e; statement S; identifier i,j; @@ -if (!(list_empty(x))) list_for_each_safe(i,j,x) S ... when != i when != j ( i = e; | ? j = e; ) </smpl> --- drivers/media/pci/saa7134/saa7134-core.c | 14 ++--- drivers/media/usb/cx231xx/cx231xx-core.c | 16 ++---- drivers/media/usb/tm6000/tm6000-core.c | 24 +++------- drivers/net/ethernet/mellanox/mlx5/core/steering/dr_matcher.c | 13 ++--- drivers/net/ethernet/mellanox/mlx5/core/steering/dr_rule.c | 5 -- drivers/net/ethernet/sfc/ptp.c | 20 +++----- drivers/net/wireless/ath/dfs_pattern_detector.c | 15 ++---- sound/soc/intel/atom/sst/sst_loader.c | 10 +--- sound/soc/intel/skylake/skl-pcm.c | 8 +-- sound/soc/intel/skylake/skl-topology.c | 5 -- 10 files changed, 53 insertions(+), 77 deletions(-) |
||
|---|---|---|
| .. | ||
| ac97 | ||
| aoa | ||
| arm | ||
| atmel | ||
| core | ||
| drivers | ||
| firewire | ||
| hda | ||
| i2c | ||
| isa | ||
| mips | ||
| oss | ||
| parisc | ||
| pci | ||
| pcmcia | ||
| ppc | ||
| sh | ||
| soc | ||
| sparc | ||
| spi | ||
| synth | ||
| usb | ||
| x86 | ||
| xen | ||
| ac97_bus.c | ||
| Kconfig | ||
| last.c | ||
| Makefile | ||
| sound_core.c | ||