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-rw-r--r--tools/testing/selftests/bpf/progs/strobemeta.h15
1 files changed, 2 insertions, 13 deletions
diff --git a/tools/testing/selftests/bpf/progs/strobemeta.h b/tools/testing/selftests/bpf/progs/strobemeta.h
index 3687ea755ab5..60c93aee2f4a 100644
--- a/tools/testing/selftests/bpf/progs/strobemeta.h
+++ b/tools/testing/selftests/bpf/progs/strobemeta.h
@@ -10,14 +10,6 @@
#include <linux/types.h>
#include <bpf/bpf_helpers.h>
-#define bpf_clamp_umax(VAR, UMAX) \
- asm volatile ( \
- "if %0 <= %[max] goto +1\n" \
- "%0 = %[max]\n" \
- : "+r"(VAR) \
- : [max]"i"(UMAX) \
- )
-
typedef uint32_t pid_t;
struct task_struct {};
@@ -366,7 +358,7 @@ static __always_inline uint64_t read_str_var(struct strobemeta_cfg *cfg,
void *payload)
{
void *location;
- uint32_t len;
+ uint64_t len;
data->str_lens[idx] = 0;
location = calc_location(&cfg->str_locs[idx], tls_base);
@@ -398,7 +390,7 @@ static __always_inline void *read_map_var(struct strobemeta_cfg *cfg,
struct strobe_map_descr* descr = &data->map_descrs[idx];
struct strobe_map_raw map;
void *location;
- uint32_t len;
+ uint64_t len;
int i;
descr->tag_len = 0; /* presume no tag is set */
@@ -421,7 +413,6 @@ static __always_inline void *read_map_var(struct strobemeta_cfg *cfg,
len = bpf_probe_read_user_str(payload, STROBE_MAX_STR_LEN, map.tag);
if (len <= STROBE_MAX_STR_LEN) {
- bpf_clamp_umax(len, STROBE_MAX_STR_LEN);
descr->tag_len = len;
payload += len;
}
@@ -439,7 +430,6 @@ static __always_inline void *read_map_var(struct strobemeta_cfg *cfg,
len = bpf_probe_read_user_str(payload, STROBE_MAX_STR_LEN,
map.entries[i].key);
if (len <= STROBE_MAX_STR_LEN) {
- bpf_clamp_umax(len, STROBE_MAX_STR_LEN);
descr->key_lens[i] = len;
payload += len;
}
@@ -447,7 +437,6 @@ static __always_inline void *read_map_var(struct strobemeta_cfg *cfg,
len = bpf_probe_read_user_str(payload, STROBE_MAX_STR_LEN,
map.entries[i].val);
if (len <= STROBE_MAX_STR_LEN) {
- bpf_clamp_umax(len, STROBE_MAX_STR_LEN);
descr->val_lens[i] = len;
payload += len;
}