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| author |   Wolfram Sang <wsa@the-dreams.de> | 2018-10-05 14:19:02 +0200 |
|---|---|---|
| committer | Wolfram Sang <wsa@the-dreams.de> | 2018-10-05 14:19:02 +0200 |
| commit | 05552832204e37e038d550e1354300eb11a9e5ec (patch) | |
| tree | 69f7ef1f98e2382b35d7e6098705c00fcfa3d3c3 /tools/lib/bpf/str_error.c | |
| parent | i2c: Convert to using %pOFn instead of device_node.name (diff) | |
| parent | eeprom: at24: fix unexpected timeout under high load (diff) | |
| download | linux-dev-05552832204e37e038d550e1354300eb11a9e5ec.tar.xz linux-dev-05552832204e37e038d550e1354300eb11a9e5ec.zip | |
Merge tag 'at24-4.20-updates-for-wolfram' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux into i2c/for-4.20
AT24 updates for 4.20
Single patch from Wang Xin improving the read/write loop in at24
under high load.
Diffstat (limited to 'tools/lib/bpf/str_error.c')
| -rw-r--r-- | tools/lib/bpf/str_error.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/tools/lib/bpf/str_error.c b/tools/lib/bpf/str_error.c new file mode 100644 index 000000000000..b8798114a357 --- /dev/null +++ b/tools/lib/bpf/str_error.c @@ -0,0 +1,18 @@ +// SPDX-License-Identifier: LGPL-2.1 +#undef _GNU_SOURCE +#include <string.h> +#include <stdio.h> +#include "str_error.h" + +/* + * Wrapper to allow for building in non-GNU systems such as Alpine Linux's musl + * libc, while checking strerror_r() return to avoid having to check this in + * all places calling it. + */ +char *str_error(int err, char *dst, int len) +{ + int ret = strerror_r(err, dst, len); + if (ret) + snprintf(dst, len, "ERROR: strerror_r(%d)=%d", err, ret); + return dst; +} |