diff options
| author | Hauke Mehrtens <hauke@hauke-m.de> | 2013-08-19 01:37:50 +0200 |
|---|---|---|
| committer | Luis R. Rodriguez <mcgrof@do-not-panic.com> | 2013-08-27 11:43:04 -0700 |
| commit | 1a996968fc51cc1323e1bedceb32143aa1226e9b (patch) | |
| tree | c7a6ba22703c71b40eeee073f0324def59569a2b /backport | |
| parent | ea9040ab25c0e0da73a754f20af98a425063cbf9 (diff) | |
backports: add hid_alloc_report_buf()
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Diffstat (limited to 'backport')
| -rw-r--r-- | backport/backport-include/linux/hid.h | 5 | ||||
| -rw-r--r-- | backport/compat/Makefile | 1 | ||||
| -rw-r--r-- | backport/compat/backport-3.12.c | 28 |
3 files changed, 34 insertions, 0 deletions
diff --git a/backport/backport-include/linux/hid.h b/backport/backport-include/linux/hid.h index 2cae9b7e..91d3de6a 100644 --- a/backport/backport-include/linux/hid.h +++ b/backport/backport-include/linux/hid.h @@ -79,4 +79,9 @@ extern bool hid_ignore(struct hid_device *); dev_dbg(&(hid)->dev, fmt, ##arg) #endif +#if LINUX_VERSION_CODE < KERNEL_VERSION(3,12,0) +#define hid_alloc_report_buf LINUX_BACKPORT(hid_alloc_report_buf) +u8 *hid_alloc_report_buf(struct hid_report *report, gfp_t flags); +#endif + #endif /* __BACKPORT_HID_H */ diff --git a/backport/compat/Makefile b/backport/compat/Makefile index 80c0294f..efdeebd5 100644 --- a/backport/compat/Makefile +++ b/backport/compat/Makefile @@ -36,6 +36,7 @@ compat-$(CPTCFG_BACKPORT_KERNEL_3_8) += compat-3.8.o compat-$(CPTCFG_BACKPORT_KERNEL_3_9) += compat-3.9.o compat-$(CPTCFG_BACKPORT_KERNEL_3_10) += backport-3.10.o compat-$(CPTCFG_BACKPORT_KERNEL_3_11) += backport-3.11.o +compat-$(CPTCFG_BACKPORT_KERNEL_3_12) += backport-3.12.o compat-$(CPTCFG_BACKPORT_BUILD_KFIFO) += kfifo.o compat-$(CPTCFG_BACKPORT_BUILD_GENERIC_ATOMIC64) += compat_atomic.o diff --git a/backport/compat/backport-3.12.c b/backport/compat/backport-3.12.c new file mode 100644 index 00000000..8ca9a8e5 --- /dev/null +++ b/backport/compat/backport-3.12.c @@ -0,0 +1,28 @@ +/* + * Copyright (c) 2013 Hauke Mehrtens <hauke@hauke-m.de> + * + * Backport functionality introduced in Linux 3.12. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/export.h> +#include <linux/hid.h> + +/* + * Allocator for buffer that is going to be passed to hid_output_report() + */ +u8 *hid_alloc_report_buf(struct hid_report *report, gfp_t flags) +{ + /* + * 7 extra bytes are necessary to achieve proper functionality + * of implement() working on 8 byte chunks + */ + + int len = ((report->size - 1) >> 3) + 1 + (report->id > 0) + 7; + + return kmalloc(len, flags); +} +EXPORT_SYMBOL_GPL(hid_alloc_report_buf); |