https://github.com/torvalds/linux
napi->poll can be called with budget 0, e.g. in netpoll scenarios where the caller only wants to poll TX rings (poll_one_napi@net/core/netpoll.c). The below commit changed RX polling from "while" loop to "do {} while", which caused to ignore the initial budget and handle at least one RX packet. This fixes the following warning: [ 2852.049194] mlx5e_napi_poll+0x0/0x260 [mlx5_core] exceeded budget in poll [ 2852.049195] ------------[ cut here ]------------ [ 2852.049195] WARNING: CPU: 0 PID: 25691 at net/core/netpoll.c:171 netpoll_poll_dev+0x18a/0x1a0 Fixes: 4b7dfc992514 ("net/mlx5e: Early-return on empty completion queues") Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Reviewed-by: Tariq Toukan <tariqt@mellanox.com> Reported-by: Martin KaFai Lau <kafai@fb.com> Tested-by: Martin KaFai Lau <kafai@fb.com> Cc: kernel-team@fb.com Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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- v2.6.19-rc2
- v2.6.19-rc1
- v2.6.19
- v2.6.18-rc7
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- v2.6.18-rc5
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- v2.6.18-rc3
- v2.6.18-rc2
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- v2.6.18
- v2.6.17-rc6
- v2.6.17-rc5
- v2.6.17-rc4
- v2.6.17-rc3
- v2.6.17-rc2
- v2.6.17-rc1
- v2.6.17
- v2.6.16-rc6
- v2.6.16-rc5
- v2.6.16-rc4
- v2.6.16-rc3
- v2.6.16-rc2
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- v2.6.16
- v2.6.15-rc7
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- v2.6.15
- v2.6.14-rc5
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- v2.6.12-rc4
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- v2.6.12-rc2
- v2.6.12
- v2.6.11-tree
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net/mlx5e: Fix napi poll with zero budget
File | Mode | Size |
---|---|---|
Documentation | ||
arch | ||
block | ||
certs | ||
crypto | ||
drivers | ||
firmware | ||
fs | ||
include | ||
init | ||
ipc | ||
kernel | ||
lib | ||
mm | ||
net | ||
samples | ||
scripts | ||
security | ||
sound | ||
tools | ||
usr | ||
virt | ||
.cocciconfig | -rw-r--r-- | 59 bytes |
.get_maintainer.ignore | -rw-r--r-- | 31 bytes |
.gitattributes | -rw-r--r-- | 30 bytes |
.gitignore | -rw-r--r-- | 1.3 KB |
.mailmap | -rw-r--r-- | 8.6 KB |
COPYING | -rw-r--r-- | 18.3 KB |
CREDITS | -rw-r--r-- | 96.1 KB |
Kbuild | -rw-r--r-- | 2.2 KB |
Kconfig | -rw-r--r-- | 287 bytes |
MAINTAINERS | -rw-r--r-- | 420.4 KB |
Makefile | -rw-r--r-- | 58.4 KB |
README | -rw-r--r-- | 722 bytes |
Computing file changes ...