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authorDominik Brodowski <linux@dominikbrodowski.net>2010-01-17 18:31:34 +0100
committerDominik Brodowski <linux@dominikbrodowski.net>2010-02-17 17:48:22 +0100
commit94a819f80297e1f635a7cde4ed5317612e512ba7 (patch)
tree9bbb1eab3a0f0c722fe40295fb512d99cc0190d9 /Documentation/pcmcia
parent3d068261854b00c930df4516cd617900935e7706 (diff)
downloadlinux-aarch64-94a819f80297e1f635a7cde4ed5317612e512ba7.tar.gz
pcmcia: assert locking to struct pcmcia_device
Tested-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Diffstat (limited to 'Documentation/pcmcia')
-rw-r--r--Documentation/pcmcia/locking.txt25
1 files changed, 25 insertions, 0 deletions
diff --git a/Documentation/pcmcia/locking.txt b/Documentation/pcmcia/locking.txt
index 5f25de4cdb42..d6251056128f 100644
--- a/Documentation/pcmcia/locking.txt
+++ b/Documentation/pcmcia/locking.txt
@@ -90,3 +90,28 @@ or single-use fields not mentioned):
struct list_head devices_list;
u8 device_count;
struct pcmcia_state;
+
+
+3. Per PCMCIA-device Data:
+--------------------------
+
+The "main" struct pcmcia_devie is protected as follows (read-only fields
+or single-use fields not mentioned):
+
+
+- by pcmcia_socket->ops_mutex:
+ struct list_head socket_device_list;
+ struct config_t *function_config;
+ u16 _irq:1;
+ u16 _io:1;
+ u16 _win:4;
+ u16 _locked:1;
+ u16 allow_func_id_match:1;
+ u16 suspended:1;
+ u16 _removed:1;
+
+- by the PCMCIA driver:
+ io_req_t io;
+ irq_req_t irq;
+ config_req_t conf;
+ window_handle_t win;