linux-kernel - [PATCH v2 03/18] powerpc/vas: Cleanup some debug code

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1507343298-27496-4-git-send-email-sukadev@linux.vnet.ibm.com>
Date:   Fri,  6 Oct 2017 19:28:03 -0700
From:   Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>
To:     Michael Ellerman <mpe@...erman.id.au>
Cc:     Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        mikey@...ling.org, hbabu@...ibm.com, nicholas.piggin@...il.com,
        linuxppc-dev@...abs.org, <linux-kernel@...r.kernel.org>
Subject: [PATCH v2 03/18] powerpc/vas: Cleanup some debug code

Clean up vas.h and the debug code around ifdef vas_debug.

Signed-off-by: Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>
---
 arch/powerpc/platforms/powernv/vas-window.c |  8 +++--
 arch/powerpc/platforms/powernv/vas.h        | 56 +++++++----------------------
 2 files changed, 18 insertions(+), 46 deletions(-)

diff --git a/arch/powerpc/platforms/powernv/vas-window.c b/arch/powerpc/platforms/powernv/vas-window.c
index a2fe120..67ffc5d 100644
--- a/arch/powerpc/platforms/powernv/vas-window.c
+++ b/arch/powerpc/platforms/powernv/vas-window.c
@@ -726,7 +726,10 @@ static void init_winctx_for_rxwin(struct vas_window *rxwin,
 static bool rx_win_args_valid(enum vas_cop_type cop,
 			struct vas_rx_win_attr *attr)
 {
-	dump_rx_win_attr(attr);
+	pr_debug("Rxattr: fault %d, notify %d, intr %d, early %d, fifo %d\n",
+			attr->fault_win, attr->notify_disable,
+			attr->intr_disable, attr->notify_early,
+			attr->rx_fifo_size);
 
 	if (cop >= VAS_COP_TYPE_MAX)
 		return false;
@@ -1050,7 +1053,8 @@ int vas_paste_crb(struct vas_window *txwin, int offset, bool re)
 	else
 		rc = -EINVAL;
 
-	print_fifo_msg_count(txwin);
+	pr_debug("Txwin #%d: Msg count %llu\n", txwin->winid,
+			read_hvwc_reg(txwin, VREG(LRFIFO_PUSH)));
 
 	return rc;
 }
diff --git a/arch/powerpc/platforms/powernv/vas.h b/arch/powerpc/platforms/powernv/vas.h
index fea0de4..15d2dfa 100644
--- a/arch/powerpc/platforms/powernv/vas.h
+++ b/arch/powerpc/platforms/powernv/vas.h
@@ -259,6 +259,16 @@
 #define VAS_NX_UTIL_ADDER		PPC_BITMASK(32, 63)
 
 /*
+ * VREG(x):
+ * Expand a register's short name (eg: LPID) into two parameters:
+ *	- the register's short name in string form ("LPID"), and
+ *	- the name of the macro (eg: VAS_LPID_OFFSET), defining the
+ *	  register's offset in the window context
+ */
+#define VREG_SFX(n, s)	__stringify(n), VAS_##n##s
+#define VREG(r)		VREG_SFX(r, _OFFSET)
+
+/*
  * Local Notify Scope Control Register. (Receive windows only).
  */
 enum vas_notify_scope {
@@ -385,43 +395,15 @@ struct vas_winctx {
 
 extern struct vas_instance *find_vas_instance(int vasid);
 
-/*
- * VREG(x):
- * Expand a register's short name (eg: LPID) into two parameters:
- *	- the register's short name in string form ("LPID"), and
- *	- the name of the macro (eg: VAS_LPID_OFFSET), defining the
- *	  register's offset in the window context
- */
-#define VREG_SFX(n, s)	__stringify(n), VAS_##n##s
-#define VREG(r)		VREG_SFX(r, _OFFSET)
-
-#ifdef vas_debug
-static inline void dump_rx_win_attr(struct vas_rx_win_attr *attr)
-{
-	pr_err("fault %d, notify %d, intr %d early %d\n",
-			attr->fault_win, attr->notify_disable,
-			attr->intr_disable, attr->notify_early);
-
-	pr_err("rx_fifo_size %d, max value %d\n",
-				attr->rx_fifo_size, VAS_RX_FIFO_SIZE_MAX);
-}
-
 static inline void vas_log_write(struct vas_window *win, char *name,
 			void *regptr, u64 val)
 {
-	if (val)
-		pr_err("%swin #%d: %s reg %p, val 0x%016llx\n",
+	if (!val)
+		pr_debug("%swin #%d: %s reg %p, val 0x%016llx\n",
 				win->tx_win ? "Tx" : "Rx", win->winid, name,
 				regptr, val);
 }
 
-#else	/* vas_debug */
-
-#define vas_log_write(win, name, reg, val)
-#define dump_rx_win_attr(attr)
-
-#endif	/* vas_debug */
-
 static inline void write_uwc_reg(struct vas_window *win, char *name,
 			s32 reg, u64 val)
 {
@@ -450,18 +432,4 @@ static inline u64 read_hvwc_reg(struct vas_window *win,
 	return in_be64(win->hvwc_map+reg);
 }
 
-#ifdef vas_debug
-
-static void print_fifo_msg_count(struct vas_window *txwin)
-{
-	uint64_t read_hvwc_reg(struct vas_window *w, char *n, uint64_t o);
-	pr_devel("Winid %d, Msg count %llu\n", txwin->winid,
-			(uint64_t)read_hvwc_reg(txwin, VREG(LRFIFO_PUSH)));
-}
-#else	/* vas_debug */
-
-#define print_fifo_msg_count(window)
-
-#endif	/* vas_debug */
-
 #endif /* _VAS_H */
-- 
2.7.4