Fix typos in selftest/bpf files

Run spell checker on files in selftest/bpf and fixed typos.

Signed-off-by: Taichi Nishimura <[e-mail]>
Signed-off-by: Andrii Nakryiko <[e-mail]>
Reviewed-by: Randy Dunlap <[e-mail]>
Link: https://lore.kernel.org/bpf/[e-mail]

tools/testing/selftests/bpf/prog_tests/migrate_reuseport.c

···
 			goto close_servers;
 	}
 
-	/* Tie requests to the first four listners */
+	/* Tie requests to the first four listeners */
 	err = start_clients(test_case);
 	if (!ASSERT_OK(err, "start_clients"))
 		goto close_clients;

tools/testing/selftests/bpf/prog_tests/trampoline_count.c

···
 	if (!ASSERT_EQ(link, NULL, "ptr_is_null"))
 		goto cleanup;
 
-	/* and finaly execute the probe */
+	/* and finally execute the probe */
 	prog_fd = bpf_program__fd(prog);
 	if (!ASSERT_GE(prog_fd, 0, "bpf_program__fd"))
 		goto cleanup;

tools/testing/selftests/bpf/progs/btf_dump_test_case_syntax.c

···
  *	typedef int (*fn_t)(int);
  *	typedef char * const * (*fn_ptr2_t)(s_t, fn_t);
  *
- * - `fn_complext_t`: pointer to a function returning struct and accepting
+ * - `fn_complex_t`: pointer to a function returning struct and accepting
  *   union and struct. All structs and enum are anonymous and defined inline.
  *
  * - `signal_t: pointer to a function accepting a pointer to a function as an

tools/testing/selftests/bpf/progs/dynptr_fail.c

···
 }
 
 /* Test that releasing a dynptr twice, where one of the releases happens
- * within a calback function, fails
+ * within a callback function, fails
  */
 SEC("?raw_tp")
 __failure __msg("arg 1 is an unacquired reference")

tools/testing/selftests/bpf/progs/strobemeta.h

···
 	 * tpidr_el0 for aarch64).
 	 * TLS_IMM_EXEC: absolute address of GOT entry containing offset
 	 * from thread pointer;
-	 * TLS_GENERAL_DYN: absolute addres of double GOT entry
+	 * TLS_GENERAL_DYN: absolute address of double GOT entry
 	 * containing tls_index_t struct;
 	 */
 	int64_t offset;

tools/testing/selftests/bpf/progs/test_cls_redirect.c

···
 		return TC_ACT_SHOT;
 	}
 
-	/* Skip the remainig next hops (may be zero). */
+	/* Skip the remaining next hops (may be zero). */
 	return skip_next_hops(pkt, encap->unigue.hop_count -
 					   encap->unigue.next_hop - 1);
 }
···
  *
  *    fill_tuple(&t, foo, sizeof(struct iphdr), 123, 321)
  *
- * clang will substitue a costant for sizeof, which allows the verifier
- * to track it's value. Based on this, it can figure out the constant
+ * clang will substitute a constant for sizeof, which allows the verifier
+ * to track its value. Based on this, it can figure out the constant
  * return value, and calling code works while still being "generic" to
  * IPv4 and IPv6.
  */

tools/testing/selftests/bpf/progs/test_subprogs.c

···
 	return sub1(v) - 1; /* compensates sub1()'s + 1 */
 }
 
-/* unfortunately verifier rejects `struct task_struct *t` as an unkown pointer
+/* unfortunately verifier rejects `struct task_struct *t` as an unknown pointer
  * type, so we need to accept pointer as integer and then cast it inside the
  * function
  */

tools/testing/selftests/bpf/progs/test_xdp_vlan.c

···
 	return true;
 }
 
-/* Hint, VLANs are choosen to hit network-byte-order issues */
+/* Hint, VLANs are chosen to hit network-byte-order issues */
 #define TESTVLAN 4011 /* 0xFAB */
 // #define TO_VLAN  4000 /* 0xFA0 (hint 0xOA0 = 160) */
 

tools/testing/selftests/bpf/test_cpp.cpp

···
 
 	skel.detach();
 
-	/* destructor will destory underlying skeleton */
+	/* destructor will destroy underlying skeleton */
 }
 
 int main(int argc, char *argv[])

tools/testing/selftests/bpf/veristat.c

···
 	struct verif_stats *prog_stats;
 	int prog_stat_cnt;
 
-	/* baseline_stats is allocated and used only in comparsion mode */
+	/* baseline_stats is allocated and used only in comparison mode */
 	struct verif_stats *baseline_stats;
 	int baseline_stat_cnt;
 
···
 		 * that BPF object file is incomplete and has to be statically
 		 * linked into a final BPF object file; instead of bailing
 		 * out, report it into stderr, mark it as skipped, and
-		 * proceeed
+		 * proceed
 		 */
 		fprintf(stderr, "Failed to open '%s': %d\n", filename, -errno);
 		env.files_skipped++;