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Commit cfc94b2c authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
  firewire: ohci: wait for local CSR lock access to finish
  firewire: ohci: prevent aliasing of locally handled register addresses
  firewire: core: fw_iso_resource_manage: return -EBUSY when out of resources
  firewire: core: fix retries calculation in iso manage_channel()
  firewire: cdev: fix cut+paste mistake in disclaimer
parents 4c6a3999 e1393667

drivers/firewire/core-iso.c

+10 −4
Original line number Diff line number Diff line
@@ -190,7 +190,7 @@ static int manage_bandwidth(struct fw_card *card, int irm_id, int generation, 
	for (try = 0; try < 5; try++) {

		new = allocate ? old - bandwidth : old + bandwidth;

		if (new < 0 || new > BANDWIDTH_AVAILABLE_INITIAL)

			break;

			return -EBUSY;



		data[0] = cpu_to_be32(old);

		data[1] = cpu_to_be32(new);
@@ -218,7 +218,7 @@ static int manage_channel(struct fw_card *card, int irm_id, int generation, 
		u32 channels_mask, u64 offset, bool allocate, __be32 data[2])

{

	__be32 c, all, old;

	int i, retry = 5;

	int i, ret = -EIO, retry = 5;



	old = all = allocate ? cpu_to_be32(~0) : 0;
@@ -226,6 +226,8 @@ static int manage_channel(struct fw_card *card, int irm_id, int generation, 
		if (!(channels_mask & 1 << i))

			continue;



		ret = -EBUSY;



		c = cpu_to_be32(1 << (31 - i));

		if ((old & c) != (all & c))

			continue;
@@ -251,12 +253,16 @@ static int manage_channel(struct fw_card *card, int irm_id, int generation, 


			/* 1394-1995 IRM, fall through to retry. */

		default:

			if (retry--)

			if (retry) {

				retry--;

				i--;

			} else {

				ret = -EIO;

			}

		}

	}



	return -EIO;

	return ret;

}



static void deallocate_channel(struct fw_card *card, int irm_id,

drivers/firewire/ohci.c

+14 −9
Original line number Diff line number Diff line
@@ -1158,7 +1158,7 @@ static void handle_local_lock(struct fw_ohci *ohci, 
			      struct fw_packet *packet, u32 csr)

{

	struct fw_packet response;

	int tcode, length, ext_tcode, sel;

	int tcode, length, ext_tcode, sel, try;

	__be32 *payload, lock_old;

	u32 lock_arg, lock_data;
@@ -1185,21 +1185,26 @@ static void handle_local_lock(struct fw_ohci *ohci, 
	reg_write(ohci, OHCI1394_CSRCompareData, lock_arg);

	reg_write(ohci, OHCI1394_CSRControl, sel);



	if (reg_read(ohci, OHCI1394_CSRControl) & 0x80000000)

		lock_old = cpu_to_be32(reg_read(ohci, OHCI1394_CSRData));

	else

		fw_notify("swap not done yet\n");



	for (try = 0; try < 20; try++)

		if (reg_read(ohci, OHCI1394_CSRControl) & 0x80000000) {

			lock_old = cpu_to_be32(reg_read(ohci,

							OHCI1394_CSRData));

			fw_fill_response(&response, packet->header,

			 RCODE_COMPLETE, &lock_old, sizeof(lock_old));

					 RCODE_COMPLETE,

					 &lock_old, sizeof(lock_old));

			goto out;

		}



	fw_error("swap not done (CSR lock timeout)\n");

	fw_fill_response(&response, packet->header, RCODE_BUSY, NULL, 0);



 out:

	fw_core_handle_response(&ohci->card, &response);

}



static void handle_local_request(struct context *ctx, struct fw_packet *packet)

{

	u64 offset;

	u32 csr;

	u64 offset, csr;



	if (ctx == &ctx->ohci->at_request_ctx) {

		packet->ack = ACK_PENDING;

include/linux/firewire-cdev.h

+1 −1
Original line number Diff line number Diff line
@@ -17,7 +17,7 @@ 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL

 * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR

 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR

 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,

 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER

 * DEALINGS IN THE SOFTWARE.

include/linux/firewire-constants.h

+1 −1
Original line number Diff line number Diff line
@@ -17,7 +17,7 @@ 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL

 * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR

 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR

 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,

 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER

 * DEALINGS IN THE SOFTWARE.