@@ -8,7 +8,7 @@ down to older kernels. It currently backports the following subsystems:
* WWAN
This package provides the latest Linux kernel subsystem enhancements
-for kernels 3.19 and above.
+for kernels 4.0 and above.
# Documentation
deleted file mode 100644
@@ -1,10 +0,0 @@
-#ifndef __BACKPORT_LINUX_FTRACE_EVENT_H
-#define __BACKPORT_LINUX_FTRACE_EVENT_H
-#include_next <linux/ftrace_event.h>
-
-#if LINUX_VERSION_IS_LESS(4,0,0)
-const char *ftrace_print_array_seq(struct trace_seq *p,
- const void *buf, int buf_len,
- size_t el_size);
-#endif
-#endif /* __BACKPORT_LINUX_FTRACE_EVENT_H */
@@ -1,9 +1,7 @@
#ifndef _BACKPORTS_LINUX_IOPOLL_H
#define _BACKPORTS_LINUX_IOPOLL_H 1
-#if LINUX_VERSION_IS_GEQ(4,0,0)
#include_next <linux/iopoll.h>
-#endif
#ifndef read_poll_timeout
/**
deleted file mode 100644
@@ -1,15 +0,0 @@
-#ifndef _COMPAT_LINUX_PRINTK_H
-#define _COMPAT_LINUX_PRINTK_H 1
-
-#include <linux/version.h>
-#include_next <linux/printk.h>
-
-/* replace hex_dump_to_buffer() with a version which returns the length */
-#if LINUX_VERSION_IS_LESS(4,0,0)
-#define hex_dump_to_buffer LINUX_BACKPORT(hex_dump_to_buffer)
-extern int hex_dump_to_buffer(const void *buf, size_t len, int rowsize,
- int groupsize, char *linebuf, size_t linebuflen,
- bool ascii);
-#endif
-
-#endif /* _COMPAT_LINUX_PRINTK_H */
@@ -7,7 +7,6 @@ endif
compat-y += main.o
# Kernel backport compatibility code
-compat-$(CPTCFG_KERNEL_4_0) += backport-4.0.o
compat-$(CPTCFG_KERNEL_4_1) += backport-4.1.o
compat-$(CPTCFG_KERNEL_4_2) += backport-4.2.o
compat-$(CPTCFG_KERNEL_4_3) += backport-4.3.o
deleted file mode 100644
@@ -1,191 +0,0 @@
-/*
- * Copyright (c) 2015 Hauke Mehrtens <hauke@hauke-m.de>
- *
- * Backport functionality introduced in Linux 4.0.
- *
- * 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/kernel.h>
-#include <linux/mm.h>
-#include <linux/sched.h>
-#include <linux/ctype.h>
-#include <linux/printk.h>
-#include <linux/export.h>
-#include <linux/trace_seq.h>
-#include <linux/ftrace_event.h>
-#include <asm/unaligned.h>
-
-/**
- * hex_dump_to_buffer - convert a blob of data to "hex ASCII" in memory
- * @buf: data blob to dump
- * @len: number of bytes in the @buf
- * @rowsize: number of bytes to print per line; must be 16 or 32
- * @groupsize: number of bytes to print at a time (1, 2, 4, 8; default = 1)
- * @linebuf: where to put the converted data
- * @linebuflen: total size of @linebuf, including space for terminating NUL
- * @ascii: include ASCII after the hex output
- *
- * hex_dump_to_buffer() works on one "line" of output at a time, i.e.,
- * 16 or 32 bytes of input data converted to hex + ASCII output.
- *
- * Given a buffer of u8 data, hex_dump_to_buffer() converts the input data
- * to a hex + ASCII dump at the supplied memory location.
- * The converted output is always NUL-terminated.
- *
- * E.g.:
- * hex_dump_to_buffer(frame->data, frame->len, 16, 1,
- * linebuf, sizeof(linebuf), true);
- *
- * example output buffer:
- * 40 41 42 43 44 45 46 47 48 49 4a 4b 4c 4d 4e 4f @ABCDEFGHIJKLMNO
- *
- * Return:
- * The amount of bytes placed in the buffer without terminating NUL. If the
- * output was truncated, then the return value is the number of bytes
- * (excluding the terminating NUL) which would have been written to the final
- * string if enough space had been available.
- */
-int hex_dump_to_buffer(const void *buf, size_t len, int rowsize, int groupsize,
- char *linebuf, size_t linebuflen, bool ascii)
-{
- const u8 *ptr = buf;
- int ngroups;
- u8 ch;
- int j, lx = 0;
- int ascii_column;
- int ret;
-
- if (rowsize != 16 && rowsize != 32)
- rowsize = 16;
-
- if (len > rowsize) /* limit to one line at a time */
- len = rowsize;
- if (!is_power_of_2(groupsize) || groupsize > 8)
- groupsize = 1;
- if ((len % groupsize) != 0) /* no mixed size output */
- groupsize = 1;
-
- ngroups = len / groupsize;
- ascii_column = rowsize * 2 + rowsize / groupsize + 1;
-
- if (!linebuflen)
- goto overflow1;
-
- if (!len)
- goto nil;
-
- if (groupsize == 8) {
- const u64 *ptr8 = buf;
-
- for (j = 0; j < ngroups; j++) {
- ret = snprintf(linebuf + lx, linebuflen - lx,
- "%s%16.16llx", j ? " " : "",
- get_unaligned(ptr8 + j));
- if (ret >= linebuflen - lx)
- goto overflow1;
- lx += ret;
- }
- } else if (groupsize == 4) {
- const u32 *ptr4 = buf;
-
- for (j = 0; j < ngroups; j++) {
- ret = snprintf(linebuf + lx, linebuflen - lx,
- "%s%8.8x", j ? " " : "",
- get_unaligned(ptr4 + j));
- if (ret >= linebuflen - lx)
- goto overflow1;
- lx += ret;
- }
- } else if (groupsize == 2) {
- const u16 *ptr2 = buf;
-
- for (j = 0; j < ngroups; j++) {
- ret = snprintf(linebuf + lx, linebuflen - lx,
- "%s%4.4x", j ? " " : "",
- get_unaligned(ptr2 + j));
- if (ret >= linebuflen - lx)
- goto overflow1;
- lx += ret;
- }
- } else {
- for (j = 0; j < len; j++) {
- if (linebuflen < lx + 3)
- goto overflow2;
- ch = ptr[j];
- linebuf[lx++] = hex_asc_hi(ch);
- linebuf[lx++] = hex_asc_lo(ch);
- linebuf[lx++] = ' ';
- }
- if (j)
- lx--;
- }
- if (!ascii)
- goto nil;
-
- while (lx < ascii_column) {
- if (linebuflen < lx + 2)
- goto overflow2;
- linebuf[lx++] = ' ';
- }
- for (j = 0; j < len; j++) {
- if (linebuflen < lx + 2)
- goto overflow2;
- ch = ptr[j];
- linebuf[lx++] = (isascii(ch) && isprint(ch)) ? ch : '.';
- }
-nil:
- linebuf[lx] = '\0';
- return lx;
-overflow2:
- linebuf[lx++] = '\0';
-overflow1:
- return ascii ? ascii_column + len : (groupsize * 2 + 1) * ngroups - 1;
-}
-EXPORT_SYMBOL_GPL(hex_dump_to_buffer);
-
-const char *
-ftrace_print_array_seq(struct trace_seq *p, const void *buf, int buf_len,
- size_t el_size)
-{
- const char *ret = trace_seq_buffer_ptr(p);
- const char *prefix = "";
- void *ptr = (void *)buf;
-
- trace_seq_putc(p, '{');
-
- while (ptr < buf + buf_len) {
- switch (el_size) {
- case 1:
- trace_seq_printf(p, "%s0x%x", prefix,
- *(u8 *)ptr);
- break;
- case 2:
- trace_seq_printf(p, "%s0x%x", prefix,
- *(u16 *)ptr);
- break;
- case 4:
- trace_seq_printf(p, "%s0x%x", prefix,
- *(u32 *)ptr);
- break;
- case 8:
- trace_seq_printf(p, "%s0x%llx", prefix,
- *(u64 *)ptr);
- break;
- default:
- trace_seq_printf(p, "BAD SIZE:%zu 0x%x", el_size,
- *(u8 *)ptr);
- el_size = 1;
- }
- prefix = ",";
- ptr += el_size;
- }
-
- trace_seq_putc(p, '}');
- trace_seq_putc(p, 0);
-
- return ret;
-}
-EXPORT_SYMBOL(ftrace_print_array_seq);
This removes all the code which is needed to support kernel 3.19. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> --- README | 2 +- .../backport-include/linux/ftrace_event.h | 10 - backport/backport-include/linux/iopoll.h | 2 - backport/backport-include/linux/printk.h | 15 -- backport/compat/Makefile | 1 - backport/compat/backport-4.0.c | 191 ------------------ 6 files changed, 1 insertion(+), 220 deletions(-) delete mode 100644 backport/backport-include/linux/ftrace_event.h delete mode 100644 backport/backport-include/linux/printk.h delete mode 100644 backport/compat/backport-4.0.c