Hi Greg,

Today's linux-next build (x86_64 allmodconfig) failed like this:

crypto/zlib.c: In function 'zlib_compress_update':
crypto/zlib.c:148: warning: initialization makes integer from pointer without a cast
crypto/zlib.c:148: error: initializer element is not computable at load time
crypto/zlib.c:148: error: (near initialization for 'descriptor.primary_hash')
crypto/zlib.c:148: warning: excess elements in struct initializer
crypto/zlib.c:148: warning: (near initialization for 'descriptor')

And many more similar.  This line is a pr_debug() statement, so the
finger points at commit 25b67b75587d43ff3f09ad88c03c70a38372d95d
("dynamic debug: combine dprintk and dynamic printk") from the
driver-core tree.

The preprocessed code looks like this:

static int zlib_compress_update(struct crypto_pcomp *tfm,
    struct comp_request *req)
{
 int ret;
 struct zlib_ctx *dctx = crypto_tfm_ctx(crypto_pcomp_tfm(tfm));
 struct z_stream_s *stream = &dctx->comp_stream;

 do { do { static struct _ddebug descriptor __attribute__((__used__)) __attribute__((section("__verbose"), aligned(8))) = { "zlib", __func__, "/scratch/sfr/next/crypto/zlib.c", "%s: " "avail_in %u, avail_out %u\n", __func__, 55, 33, 148, 0 }; if (({ int __ret = 0; if (__builtin_expect(!!((dynamic_debug_enabled & (1LL << 55)) && (dynamic_debug_enabled2 & (1LL << 33))), 0)) if (__builtin_expect(!!(descriptor.flags), 0)) __ret = 1; __ret; })) printk("<7>" "zlib" ":" "%s: " "avail_in %u, avail_out %u\n", __func__, req->avail_in, req->avail_out); } while (0); } while (0);

The problem is the line:

#define pr_fmt(fmt)     "%s: " fmt, __func__

in crypto/zlib.c which was introduced by commit
bf68e65ec9ea61e32ab71bef59aa5d24d255241f ("crypto: zlib - New zlib crypto
module, using pcomp") from the crypto tree.

For today, I have removed the above line from crypto/zlib.c, but
something better needs to be done for tomorrow!

-- 
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au
http://www.canb.auug.org.au/~sfr/