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Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

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All of the conflicts were cases of overlapping changes.

In net/core/devlink.c, we have to make care that the
resouce size_params have become a struct member rather
than a pointer to such an object.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
2018-03-06 00:53:44 -05:00
parent ef3f6c256f ce380619fa
commit 0f3e9c97eb
484 changed files with 4726 additions and 2555 deletions
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42
kernel/bpf/verifier.c
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@@ -1352,6 +1352,13 @@ static bool is_ctx_reg(struct bpf_verifier_env *env, int regno)
return reg->type == PTR_TO_CTX;
}
static bool is_pkt_reg(struct bpf_verifier_env *env, int regno)
{
const struct bpf_reg_state *reg = cur_regs(env) + regno;
return type_is_pkt_pointer(reg->type);
}
static int check_pkt_ptr_alignment(struct bpf_verifier_env *env,
const struct bpf_reg_state *reg,
int off, int size, bool strict)
@@ -1412,10 +1419,10 @@ static int check_generic_ptr_alignment(struct bpf_verifier_env *env,
}
static int check_ptr_alignment(struct bpf_verifier_env *env,
const struct bpf_reg_state *reg,
int off, int size)
const struct bpf_reg_state *reg, int off,
int size, bool strict_alignment_once)
{
bool strict = env->strict_alignment;
bool strict = env->strict_alignment || strict_alignment_once;
const char *pointer_desc = "";
switch (reg->type) {
@@ -1572,9 +1579,9 @@ static void coerce_reg_to_size(struct bpf_reg_state *reg, int size)
* if t==write && value_regno==-1, some unknown value is stored into memory
* if t==read && value_regno==-1, don't care what we read from memory
*/
static int check_mem_access(struct bpf_verifier_env *env, int insn_idx, u32 regno, int off,
int bpf_size, enum bpf_access_type t,
int value_regno)
static int check_mem_access(struct bpf_verifier_env *env, int insn_idx, u32 regno,
int off, int bpf_size, enum bpf_access_type t,
int value_regno, bool strict_alignment_once)
{
struct bpf_reg_state *regs = cur_regs(env);
struct bpf_reg_state *reg = regs + regno;
@@ -1586,7 +1593,7 @@ static int check_mem_access(struct bpf_verifier_env *env, int insn_idx, u32 regn
return size;
/* alignment checks will add in reg->off themselves */
err = check_ptr_alignment(env, reg, off, size);
err = check_ptr_alignment(env, reg, off, size, strict_alignment_once);
if (err)
return err;
@@ -1731,21 +1738,23 @@ static int check_xadd(struct bpf_verifier_env *env, int insn_idx, struct bpf_ins
return -EACCES;
}
if (is_ctx_reg(env, insn->dst_reg)) {
verbose(env, "BPF_XADD stores into R%d context is not allowed\n",
insn->dst_reg);
if (is_ctx_reg(env, insn->dst_reg) ||
is_pkt_reg(env, insn->dst_reg)) {
verbose(env, "BPF_XADD stores into R%d %s is not allowed\n",
insn->dst_reg, is_ctx_reg(env, insn->dst_reg) ?
"context" : "packet");
return -EACCES;
}
/* check whether atomic_add can read the memory */
err = check_mem_access(env, insn_idx, insn->dst_reg, insn->off,
BPF_SIZE(insn->code), BPF_READ, -1);
BPF_SIZE(insn->code), BPF_READ, -1, true);
if (err)
return err;
/* check whether atomic_add can write into the same memory */
return check_mem_access(env, insn_idx, insn->dst_reg, insn->off,
BPF_SIZE(insn->code), BPF_WRITE, -1);
BPF_SIZE(insn->code), BPF_WRITE, -1, true);
}
/* when register 'regno' is passed into function that will read 'access_size'
@@ -2384,7 +2393,8 @@ static int check_helper_call(struct bpf_verifier_env *env, int func_id, int insn
* is inferred from register state.
*/
for (i = 0; i < meta.access_size; i++) {
err = check_mem_access(env, insn_idx, meta.regno, i, BPF_B, BPF_WRITE, -1);
err = check_mem_access(env, insn_idx, meta.regno, i, BPF_B,
BPF_WRITE, -1, false);
if (err)
return err;
}
@@ -4628,7 +4638,7 @@ static int do_check(struct bpf_verifier_env *env)
*/
err = check_mem_access(env, insn_idx, insn->src_reg, insn->off,
BPF_SIZE(insn->code), BPF_READ,
insn->dst_reg);
insn->dst_reg, false);
if (err)
return err;
@@ -4680,7 +4690,7 @@ static int do_check(struct bpf_verifier_env *env)
/* check that memory (dst_reg + off) is writeable */
err = check_mem_access(env, insn_idx, insn->dst_reg, insn->off,
BPF_SIZE(insn->code), BPF_WRITE,
insn->src_reg);
insn->src_reg, false);
if (err)
return err;
@@ -4715,7 +4725,7 @@ static int do_check(struct bpf_verifier_env *env)
/* check that memory (dst_reg + off) is writeable */
err = check_mem_access(env, insn_idx, insn->dst_reg, insn->off,
BPF_SIZE(insn->code), BPF_WRITE,
-1);
-1, false);
if (err)
return err;