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Merge request <a href="https://gitlab.com/gnutls/gnutls/-/merge_requests/1335">!1335</a> was reviewed by <a href="https://gitlab.com/dueno">Daiki Ueno</a>
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<p style="color: #777777;">
<a href="https://gitlab.com/dueno">Daiki Ueno</a>
started a new
discussion on <a href="https://gitlab.com/gnutls/gnutls/-/merge_requests/1335#note_416789266">lib/accelerated/x86/sha-padlock.c</a>:
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385
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<pre style="margin: 0;"> <span id="LC385" class="line" lang="c"></span>
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<pre style="margin: 0;">-<span id="LC386" class="line" lang="c"><span class="k" style="font-weight: 600;">const</span> <span class="n" style="color: #333;">gnutls_crypto_digest_st</span> <span class="n" style="color: #333;">_gnutls_sha_padlock_<span class="idiff left right">nano</span></span> <span class="o" style="font-weight: 600;">=</span> <span class="p">{</span></span>
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<pre style="margin: 0;">+<span id="LC386" class="line" lang="c"><span class="k" style="font-weight: 600;">const</span> <span class="n" style="color: #333;">gnutls_crypto_digest_st</span> <span class="n" style="color: #333;">_gnutls_sha_padlock_<span class="idiff left right">enhance</span></span> <span class="o" style="font-weight: 600;">=</span> <span class="p">{</span></span>
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<p dir="auto">Although this is a matter of taste, I would give those variants a self-describing names, something like:</p>
<ul dir="auto">
<li>
<code>_gnutls_sha_padlock</code> → <code>_gnutls_sha_padlock_oneshot</code>
</li>
<li>
<code>_gnutls_sha_padlock_nano</code> → <code>_gnutls_sha_padlock</code>
</li>
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<p style="color: #777777;">
<a href="https://gitlab.com/dueno">Daiki Ueno</a>
started a new
discussion on <a href="https://gitlab.com/gnutls/gnutls/-/merge_requests/1335#note_416789270">lib/accelerated/x86/x86-common.c</a>:
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337
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<pre style="margin: 0;">-<span id="LC337" class="line" lang="c"> <span class="n" style="color: #333;">memcmp</span><span class="p">(</span><span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">d</span><span class="p">,</span> <span class="s" style="color: #d14;">"aurH"</span><span class="p">,</span> <span class="mi" style="color: #099;">4</span><span class="p">)</span> <span class="o" style="font-weight: 600;">==</span> <span class="mi" style="color: #099;">0</span> <span class="o" style="font-weight: 600;">&&</span> <span class="n" style="color: #333;">memcmp</span><span class="p">(</span><span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">c</span><span class="p">,</span> <span class="s" style="color: #d14;">"auls"</span><span class="p">,</span> <span class="mi" style="color: #099;">4</span><span class="p">)</span> <span class="o" style="font-weight: 600;">==</span> <span class="mi" style="color: #099;">0</span><span class="p">))</span> <span class="p">{</span></span>
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353
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<pre style="margin: 0;">+<span id="LC353" class="line" lang="c"> <span class="n" style="color: #333;">memcmp</span><span class="p">(</span><span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">d</span><span class="p">,</span> <span class="s" style="color: #d14;">"aurH"</span><span class="p">,</span> <span class="mi" style="color: #099;">4</span><span class="p">)</span> <span class="o" style="font-weight: 600;">==</span> <span class="mi" style="color: #099;">0</span> <span class="o" style="font-weight: 600;">&&</span></span>
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<pre style="margin: 0;">+<span id="LC354" class="line" lang="c"> <span class="n" style="color: #333;">memcmp</span><span class="p">(</span><span class="o" style="font-weight: 600;">&</span><span class="n" style="color: #333;">c</span><span class="p">,</span> <span class="s" style="color: #d14;">"auls"</span><span class="p">,</span> <span class="mi" style="color: #099;">4</span><span class="p">)</span> <span class="o" style="font-weight: 600;">==</span> <span class="mi" style="color: #099;">0</span><span class="p">)</span> <span class="o" style="font-weight: 600;">||</span></span>
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<p dir="auto">Would be nice to add comments saying which CPU model this code is detecting.</p>
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<p style="color: #777777;">
<a href="https://gitlab.com/dueno">Daiki Ueno</a>
started a new
discussion on <a href="https://gitlab.com/gnutls/gnutls/-/merge_requests/1335#note_416789273">lib/accelerated/x86/x86-common.c</a>:
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<pre style="margin: 0;">-<span id="LC353" class="line" lang="c"> <span class="k" style="font-weight: 600;">if</span> <span class="p">(</span><span class="n" style="color: #333;">capabilities</span> <span class="o" style="font-weight: 600;">==</span> <span class="mi" style="color: #099;">0</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC373" class="line" lang="c"> <span class="k" style="font-weight: 600;">if</span> <span class="p">(</span><span class="n" style="color: #333;">capabilities</span> <span class="o" style="font-weight: 600;">==</span> <span class="mi" style="color: #099;">0</span><span class="p">){</span></span>
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<pre style="margin: 0;">+<span id="LC374" class="line" lang="c"> <span class="k" style="font-weight: 600;">if</span><span class="p">(</span><span class="o" style="font-weight: 600;">!</span><span class="n" style="color: #333;">read_cpuid_vals</span><span class="p">(</span><span class="n" style="color: #333;">_gnutls_x86_cpuid_s</span><span class="p">))</span></span>
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<p dir="auto">The indentation looks strange.</p>
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<p style="color: #777777;">
<a href="https://gitlab.com/dueno">Daiki Ueno</a>
started a new
discussion on <a href="https://gitlab.com/gnutls/gnutls/-/merge_requests/1335#note_416789275">lib/accelerated/x86/x86-common.c</a>:
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<pre style="margin: 0;">+<span id="LC307" class="line" lang="c"><span class="p">{</span></span>
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<pre style="margin: 0;">+<span id="LC308" class="line" lang="c"> <span class="kt" style="color: #458; font-weight: 600;">unsigned</span> <span class="kt" style="color: #458; font-weight: 600;">int</span> <span class="n" style="color: #333;">a</span><span class="p">,</span><span class="n" style="color: #333;">b</span><span class="p">,</span><span class="n" style="color: #333;">c</span><span class="p">,</span><span class="n" style="color: #333;">d</span><span class="p">;</span></span>
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<pre style="margin: 0;">+<span id="LC309" class="line" lang="c"> <span class="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">b</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">c</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">d</span> <span class="o" style="font-weight: 600;">=</span> <span class="mi" style="color: #099;">0</span><span class="p">;</span></span>
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<p dir="auto">I'd remove this initialization, as we don't have it in other functions calling <code>__get_cpuid</code> and I assume all arguments are set upon a successful call.</p>
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<p style="color: #777777;">
<a href="https://gitlab.com/dueno">Daiki Ueno</a>
started a new
discussion on <a href="https://gitlab.com/gnutls/gnutls/-/merge_requests/1335#note_416789282">lib/accelerated/x86/x86-common.c</a>:
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<pre style="margin: 0;">+<span id="LC312" class="line" lang="c"></span>
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<pre style="margin: 0;">+<span id="LC313" class="line" lang="c"> <span class="kt" style="color: #458; font-weight: 600;">unsigned</span> <span class="kt" style="color: #458; font-weight: 600;">int</span> <span class="n" style="color: #333;">family</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">((</span><span class="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;">>></span> <span class="mi" style="color: #099;">8</span><span class="p">)</span> <span class="o" style="font-weight: 600;">&</span> <span class="mh" style="color: #099;">0x0F</span><span class="p">);</span></span>
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<td class="diff-line-num new new_line" data-linenumber="314" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<pre style="margin: 0;">+<span id="LC314" class="line" lang="c"> <span class="kt" style="color: #458; font-weight: 600;">unsigned</span> <span class="kt" style="color: #458; font-weight: 600;">int</span> <span class="n" style="color: #333;">model</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">((</span><span class="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;">>></span> <span class="mi" style="color: #099;">4</span><span class="p">)</span> <span class="o" style="font-weight: 600;">&</span> <span class="mh" style="color: #099;">0x0F</span><span class="p">)</span> <span class="o" style="font-weight: 600;">+</span> <span class="p">((</span><span class="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;">>></span> <span class="mi" style="color: #099;">12</span><span class="p">)</span> <span class="o" style="font-weight: 600;">&</span> <span class="mh" style="color: #099;">0xF0</span><span class="p">);</span></span>
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<p dir="auto">Afaik we still support pre-C99 compilers; please move the variable declaration to the top.</p>
</div>
<p style="color: #777777;">
<a href="https://gitlab.com/dueno">Daiki Ueno</a>
started a new
discussion on <a href="https://gitlab.com/gnutls/gnutls/-/merge_requests/1335#note_416789283">lib/accelerated/x86/x86-common.c</a>:
</p>
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<pre style="margin: 0;"> <span id="LC251" class="line" lang="c"> <span class="kt" style="color: #458; font-weight: 600;">unsigned</span> <span class="n" style="color: #333;">a</span><span class="p">,</span><span class="n" style="color: #333;">b</span><span class="p">,</span><span class="n" style="color: #333;">c</span><span class="p">,</span><span class="n" style="color: #333;">t</span><span class="p">;</span></span>
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<pre style="margin: 0;"> <span id="LC252" class="line" lang="c"></span>
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<pre style="margin: 0;">-<span id="LC253" class="line" lang="c"> <span class="n" style="color: #333;">memset</span><span class="p">(</span><span class="n" style="color: #333;">_gnutls_x86_cpuid_s</span><span class="p">,</span> <span class="mi" style="color: #099;">0</span><span class="p">,</span> <span class="k" style="font-weight: 600;">sizeof</span><span class="p">(</span><span class="n" style="color: #333;">_gnutls_x86_cpuid_s</span><span class="p">));</span></span>
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<p dir="auto">Why is this <code>memset</code> no longer necessary?</p>
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<p style="color: #777777;">
<a href="https://gitlab.com/dueno">Daiki Ueno</a>
started a new
discussion on <a href="https://gitlab.com/gnutls/gnutls/-/merge_requests/1335#note_416789290">lib/accelerated/x86/x86-common.c</a>:
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<td class="diff-line-num new old_line" data-linenumber="108" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<td class="diff-line-num new new_line" data-linenumber="105" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<pre style="margin: 0;">+<span id="LC105" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#define PADLOCK (1<<20)</span></span>
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<td class="diff-line-num new old_line" data-linenumber="108" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<td class="diff-line-num new new_line" data-linenumber="106" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<pre style="margin: 0;">+<span id="LC106" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#define PADLOCK_PHE (1<<21)</span></span>
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<td class="diff-line-num new old_line" data-linenumber="108" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<td class="diff-line-num new new_line" data-linenumber="107" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<pre style="margin: 0;">+<span id="LC107" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#define PADLOCK_PHE_SHA512 (1<<22)</span></span>
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<p dir="auto">I'm not quite sure about the relationship between VIA and Zhaoxin, but is there any specific (strong) reason behind removing "VIA" term?</p>
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