netdev - [PATCH net-next 3/4] net: ipa: change a warning to debug

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Date:   Mon,  9 Nov 2020 10:56:34 -0600
From:   Alex Elder <elder@...aro.org>
To:     davem@...emloft.net, kuba@...nel.org
Cc:     evgreen@...omium.org, subashab@...eaurora.org,
        cpratapa@...eaurora.org, bjorn.andersson@...aro.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        Stephen Boyd <swboyd@...omium.org>
Subject: [PATCH net-next 3/4] net: ipa: change a warning to debug

When we determine from hardware what the size of IPA memory is
we compare it against what we learned about it from DT.

If DT defines a region that's larger than actual memory, we use the
smaller actual size and issue a warning.

If DT defines a smaller region than actual memory we issue a warning
too.  But in this case the difference is harmless; so rather than
issuing a warning, just provide a debug message instead.

Reorder these checks so the one that matters more is done first.

Reported-by: Stephen Boyd <swboyd@...omium.org>
Signed-off-by: Alex Elder <elder@...aro.org>
---
 drivers/net/ipa/ipa_mem.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ipa/ipa_mem.c b/drivers/net/ipa/ipa_mem.c
index ecfd1f91fce3b..0cc3a3374caa2 100644
--- a/drivers/net/ipa/ipa_mem.c
+++ b/drivers/net/ipa/ipa_mem.c
@@ -160,13 +160,13 @@ int ipa_mem_config(struct ipa *ipa)
 	mem_size = 8 * u32_get_bits(val, SHARED_MEM_SIZE_FMASK);
 
 	/* If the sizes don't match, issue a warning */
-	if (ipa->mem_offset + mem_size > ipa->mem_size) {
-		dev_warn(dev, "ignoring larger reported memory size: 0x%08x\n",
-			mem_size);
-	} else if (ipa->mem_offset + mem_size < ipa->mem_size) {
+	if (ipa->mem_offset + mem_size < ipa->mem_size) {
 		dev_warn(dev, "limiting IPA memory size to 0x%08x\n",
 			 mem_size);
 		ipa->mem_size = mem_size;
+	} else if (ipa->mem_offset + mem_size > ipa->mem_size) {
+		dev_dbg(dev, "ignoring larger reported memory size: 0x%08x\n",
+			mem_size);
 	}
 
 	/* Prealloc DMA memory for zeroing regions */
-- 
2.20.1