[PATCH net-next 11/11] net: ipa: use bitmap to check for missing regions
From: Alex Elder <hidden>
Date: 2021-06-09 22:36:21
Also in:
lkml
Subsystem:
networking drivers, qcom ipa driver, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Alex Elder, Linus Torvalds
In ipa_mem_valid(), wait until regions have been marked in the memory region bitmap, and check all that are not found there to ensure they are not required. Signed-off-by: Alex Elder <redacted> --- drivers/net/ipa/ipa_mem.c | 13 +++++-------- 1 file changed, 5 insertions(+), 8 deletions(-)
diff --git a/drivers/net/ipa/ipa_mem.c b/drivers/net/ipa/ipa_mem.c
index 7b79aeb5f68fc..ef9fdd3b88750 100644
--- a/drivers/net/ipa/ipa_mem.c
+++ b/drivers/net/ipa/ipa_mem.c@@ -249,19 +249,16 @@ static bool ipa_mem_valid(struct ipa *ipa, const struct ipa_mem_data *mem_data) if (mem->offset) dev_warn(dev, "empty region %u has non-zero offset\n", mem_id); - - if (ipa_mem_id_required(ipa, mem_id)) { - dev_err(dev, "required memory region %u missing\n", - mem_id); - return false; - } } /* Now see if any required regions are not defined */ - while (mem_id < IPA_MEM_COUNT) - if (ipa_mem_id_required(ipa, mem_id++)) + for (mem_id = find_first_zero_bit(regions, IPA_MEM_COUNT); + mem_id < IPA_MEM_COUNT; + mem_id = find_next_zero_bit(regions, IPA_MEM_COUNT, mem_id + 1)) { + if (ipa_mem_id_required(ipa, mem_id)) dev_err(dev, "required memory region %u missing\n", mem_id); + } return true; }
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2.27.0