From f2efd20facac2de96d33210a982820db960d25d1 Mon Sep 17 00:00:00 2001 From: Anisse Astier Date: Thu, 19 Apr 2012 15:04:52 +0200 Subject: [PATCH] rt2x00: debugfs support - allow a register to be empty Allow a register to be unspecified, therefore not creating its debugfs file entry. Signed-off-by: Anisse Astier Acked-by: Ivo van Doorn Signed-off-by: John W. Linville --- drivers/net/wireless/rt2x00/rt2x00debug.c | 71 ++++++++++++++++--------------- 1 file changed, 36 insertions(+), 35 deletions(-) diff --git a/drivers/net/wireless/rt2x00/rt2x00debug.c b/drivers/net/wireless/rt2x00/rt2x00debug.c index 78787fc..5bb1221 100644 --- a/drivers/net/wireless/rt2x00/rt2x00debug.c +++ b/drivers/net/wireless/rt2x00/rt2x00debug.c @@ -624,22 +624,21 @@ static struct dentry *rt2x00debug_create_file_chipset(const char *name, data += sprintf(data, "revision:\t%04x\n", intf->rt2x00dev->chip.rev); data += sprintf(data, "\n"); data += sprintf(data, "register\tbase\twords\twordsize\n"); - data += sprintf(data, "csr\t%d\t%d\t%d\n", - debug->csr.word_base, - debug->csr.word_count, - debug->csr.word_size); - data += sprintf(data, "eeprom\t%d\t%d\t%d\n", - debug->eeprom.word_base, - debug->eeprom.word_count, - debug->eeprom.word_size); - data += sprintf(data, "bbp\t%d\t%d\t%d\n", - debug->bbp.word_base, - debug->bbp.word_count, - debug->bbp.word_size); - data += sprintf(data, "rf\t%d\t%d\t%d\n", - debug->rf.word_base, - debug->rf.word_count, - debug->rf.word_size); +#define RT2X00DEBUGFS_SPRINTF_REGISTER(__name) \ +{ \ + if(debug->__name.read) \ + data += sprintf(data, __stringify(__name) \ + "\t%d\t%d\t%d\n", \ + debug->__name.word_base, \ + debug->__name.word_count, \ + debug->__name.word_size); \ +} + RT2X00DEBUGFS_SPRINTF_REGISTER(csr); + RT2X00DEBUGFS_SPRINTF_REGISTER(eeprom); + RT2X00DEBUGFS_SPRINTF_REGISTER(bbp); + RT2X00DEBUGFS_SPRINTF_REGISTER(rf); +#undef RT2X00DEBUGFS_SPRINTF_REGISTER + blob->size = strlen(blob->data); return debugfs_create_blob(name, S_IRUSR, intf->driver_folder, blob); @@ -694,25 +693,27 @@ void rt2x00debug_register(struct rt2x00_dev *rt2x00dev) if (IS_ERR(intf->register_folder) || !intf->register_folder) goto exit; -#define RT2X00DEBUGFS_CREATE_REGISTER_ENTRY(__intf, __name) \ -({ \ - (__intf)->__name##_off_entry = \ - debugfs_create_u32(__stringify(__name) "_offset", \ - S_IRUSR | S_IWUSR, \ - (__intf)->register_folder, \ - &(__intf)->offset_##__name); \ - if (IS_ERR((__intf)->__name##_off_entry) \ - || !(__intf)->__name##_off_entry) \ - goto exit; \ - \ - (__intf)->__name##_val_entry = \ - debugfs_create_file(__stringify(__name) "_value", \ - S_IRUSR | S_IWUSR, \ - (__intf)->register_folder, \ - (__intf), &rt2x00debug_fop_##__name);\ - if (IS_ERR((__intf)->__name##_val_entry) \ - || !(__intf)->__name##_val_entry) \ - goto exit; \ +#define RT2X00DEBUGFS_CREATE_REGISTER_ENTRY(__intf, __name) \ +({ \ + if(debug->__name.read) { \ + (__intf)->__name##_off_entry = \ + debugfs_create_u32(__stringify(__name) "_offset", \ + S_IRUSR | S_IWUSR, \ + (__intf)->register_folder, \ + &(__intf)->offset_##__name); \ + if (IS_ERR((__intf)->__name##_off_entry) \ + || !(__intf)->__name##_off_entry) \ + goto exit; \ + \ + (__intf)->__name##_val_entry = \ + debugfs_create_file(__stringify(__name) "_value", \ + S_IRUSR | S_IWUSR, \ + (__intf)->register_folder, \ + (__intf), &rt2x00debug_fop_##__name); \ + if (IS_ERR((__intf)->__name##_val_entry) \ + || !(__intf)->__name##_val_entry) \ + goto exit; \ + } \ }) RT2X00DEBUGFS_CREATE_REGISTER_ENTRY(intf, csr); -- 2.7.4