tree 7ea18549863702e84887b93178a17544b27aa7f1
parent 14f62688839dc7245ca87e040f14fbd2147698e6
author Willy Tarreau <w@1wt.eu> 1664863323 +0200
committer Willy Tarreau <w@1wt.eu> 1664863323 +0200
encoding latin1

BUILD: h1: silence an initiialized warning with gcc-4.7 and -Os

Building h1.c with gcc-4.7 -Os produces the following warning:

  src/h1.c: In function 'h1_headers_to_hdr_list':
  src/h1.c:1101:36: warning: 'ptr' may be used uninitialized in this function [-Wmaybe-uninitialized]

In fact ptr may be taken from sl.rq.u.ptr which is only initialized after
passing through the relevant states, but gcc doesn't know which states
are visited. Adding an ALREADY_CHECKED() statement there is sufficient to
shut it up and doesn't affect the emitted code.

This may be backported to stable versions to make sure that builds on older
distros and systems is clean.