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| author | Josef 'Jeff' Sipek <josef.sipek@nexenta.com> | 2014-10-31 20:50:13 -0400 |
|---|---|---|
| committer | Robert Mustacchi <rm@joyent.com> | 2014-11-10 21:21:27 -0800 |
| commit | 0716b62f878e855b94635ef4793ef5f7f2abb8e4 (patch) | |
| tree | 327562cb286854b87162f99105b1732389914e03 /usr/src | |
| parent | 7e33f252cf7e3c3ee6c4ad7a90480f5aea3a026c (diff) | |
| download | illumos-joyent-0716b62f878e855b94635ef4793ef5f7f2abb8e4.tar.gz | |
5256 document some nonsensical code in the px driver
Reviewed by: Marcel Telka <marcel@telka.sk>
Approved by: Robert Mustacchi <rm@joyent.com>
Diffstat (limited to 'usr/src')
| -rw-r--r-- | usr/src/uts/sun4/io/px/px_debug.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/usr/src/uts/sun4/io/px/px_debug.c b/usr/src/uts/sun4/io/px/px_debug.c index 6d94288615..4eea5eb9e8 100644 --- a/usr/src/uts/sun4/io/px/px_debug.c +++ b/usr/src/uts/sun4/io/px/px_debug.c @@ -255,6 +255,10 @@ px_dbg_attach(dev_info_t *dip, ddi_softint_handle_t *dbg_hdl) int size = px_dbg_msg_size; /* Check if px_dbg_msg_size is ^2 */ + /* + * WARNING: The bellow statement makes no sense. If size is + * not a power of 2, it will set size to zero. + */ size = !ISP2(size) ? ((size | ~size) + 1) : size; px_dbg_msg_size = size; px_dbg_qmask = size - 1; |