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| author |   Tony Lindgren <tony@atomide.com> | 2018-08-28 09:58:03 -0700 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2018-08-28 09:58:03 -0700 |
| commit | ea4d65f14f6aaa53e379b93c5544245ef081b3e7 (patch) | |
| tree | a15485f4f1cf547a52b31fa8e16e14b9579b7200 /include/linux/ascii85.h | |
| parent | arm: dts: am4372: setup rtc as system-power-controller (diff) | |
| parent | ARM: dts: Fix file permission for am335x-osd3358-sm-red.dts (diff) | |
| download | wireguard-linux-ea4d65f14f6aaa53e379b93c5544245ef081b3e7.tar.xz wireguard-linux-ea4d65f14f6aaa53e379b93c5544245ef081b3e7.zip | |
Merge branch 'perm-fix' into omap-for-v4.19/fixes-v2
Diffstat (limited to '')
| -rw-r--r-- | include/linux/ascii85.h | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/include/linux/ascii85.h b/include/linux/ascii85.h new file mode 100644 index 000000000000..4cc40201273e --- /dev/null +++ b/include/linux/ascii85.h @@ -0,0 +1,38 @@ +/* + * SPDX-License-Identifier: GPL-2.0 + * + * Copyright (c) 2008 Intel Corporation + * Copyright (c) 2018 The Linux Foundation. All rights reserved. + */ + +#ifndef _ASCII85_H_ +#define _ASCII85_H_ + +#include <linux/kernel.h> + +#define ASCII85_BUFSZ 6 + +static inline long +ascii85_encode_len(long len) +{ + return DIV_ROUND_UP(len, 4); +} + +static inline const char * +ascii85_encode(u32 in, char *out) +{ + int i; + + if (in == 0) + return "z"; + + out[5] = '\0'; + for (i = 5; i--; ) { + out[i] = '!' + in % 85; + in /= 85; + } + + return out; +} + +#endif |