Re: [PATCH] x86/sgx: Use goto to remove redundant if check in sgx_encl_init

On 11. Dec 2025, at 21:15, Jarkko Sakkinen wrote:
> On Thu, Dec 11, 2025 at 10:03:56PM +0200, Jarkko Sakkinen wrote:
>> On Wed, Dec 10, 2025 at 04:48:08PM +0100, Thorsten Blum wrote:
>>> On 10. Dec 2025, at 16:32, Jarkko Sakkinen wrote:
>>>> On Wed, Dec 10, 2025 at 02:00:35PM +0100, Thorsten Blum wrote:
>>>>> Immediately break out of both loops when 'ret != SGX_UNMASKED_EVENT'
>>>>> instead of checking for the same condition again in the outer loop.
>>>>> 
>>>>> Signed-off-by: Thorsten Blum <[email protected]>
>>>>> ---
>>>>> [...]
>>>> 
>>>> I don't think moving code around is very useful.
>>> 
>>> The patch doesn't actually move any code around, but it removes up to 50
>>> (SGX_EINIT_SLEEP_COUNT) duplicate and therefore unnecessary if checks in
>>> the outer for loop.
>> 
>> Temporary change for generating disassembly:
>> [...]
> 
> It pretty much does what I said i.e., shuffles a new location for a code block.

GCC emits a much larger diff; however, discussing the patch based solely
on the disassembled code probably isn't very meaningful.

Thanks,
Thorsten