On 6/5/24 17:30, Mark Brown wrote:
On Wed, Jun 05, 2024 at 05:24:48PM +0530, Dev Jain wrote:
Currently, we are writing the same value as we read, into the TLS
register; hence, we cannot confirm updation of the register, making the
testcase "verify_tpidr_one" redundant. Fix this; while at it, do a style
change.
Please don't combine unrelated changes into a single patch.
I shall take care of that in the future.
/* ...write a new value.. */
write_iov.iov_len = sizeof(uint64_t);
- write_val[0] = read_val[0]++;
+ write_val[0] = read_val[0] + 1;
ret = ptrace(PTRACE_SETREGSET, child, NT_ARM_TLS, &write_iov);
ksft_test_result(ret == 0, "write_tpidr_one\n");
This is a good fix:
Reviewed-by: Mark Brown <broo...@kernel.org>
Thanks!
@@ -108,7 +108,7 @@ static void test_tpidr(pid_t child)
/* Writing only TPIDR... */
write_iov.iov_len = sizeof(uint64_t);
memcpy(write_val, read_val, sizeof(read_val));
- write_val[0] += 1;
+ ++write_val[0];
I'm less convinced that this is a good style change.
Well, what I have seen usually is, when we add 1, we
use prefix/postfix increment, and do a "+=" when it
is not 1. But, I get your point: such style may confuse
people into thinking that we are doing an index/pointer
increment, since that is the usual usecase for this.
