On Sun, 27 Aug 2006 04:42:03 -0400 Lee Trager wrote:
> This patch fixes a problem with computers that have HPA on their hard
> drive and not being able to come out of resume from RAM or disk. I've
> tested this patch on 2.6.17.x and 2.6.18-rc4 and it works great on both
> of these. This patch also fixes the bug #6840. This is my first patch to
> the kernel and I was told to e-mail the above people to get my patch
> into the kernel. If I made a mistake please be gentle and correct me ;)
Please use inline patches if your mail system supports/allows it.
Attachments make it difficult to review a patch.
(now do some cp-n-paste for comments)
+/* Bits 10 of command_set_1 and cfs_enable_1 must be equal,
+ * so on non-buggy drives we need test only one.
+ * However, we should also check whether these fields are valid.
+*/
Long comment style in Linux is:
/*
* foo bar
* comments
*/
+static inline int idedisk_supports_hpa(const struct hd_driveid *id)
+{
+ return (id->command_set_1 & 0x0400) && (id->cfs_enable_1 & 0x0400);
+}
Please use a #defined value for the 0x400.
(Yes, you just moved it from somewhere else.)
+ /* check to see if this is a hard drive
+ * if it is then checkhpa needs to be
+ * disabled */
Comment style again.
+ if(drive->media == ide_disk && idedisk_supports_hpa(drive->id))
space after "if".
+ init_idedisk_capacity(drive);
---
~Randy
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